RepoMirrors/prometheus
1
0
Fork 0
mirror of https://github.com/prometheus/prometheus synced 2025-04-01 22:59:03 +00:00
Code Issues Packages Projects Releases Wiki Activity
2f144dd3ad
prometheus/promql/parser/parse_test.go
György Krajcsovits 2f144dd3ad feat(promql): offset from static time expression 
Related to #12318 .

Allow using a PromQL expression for setting the offset, provided that:

the expression evaluates to a scalar
the expression does not contain vector selector (no TSDB access)
the expression does not call the info() function (no TSDB access)
the time() function is only called on the top level of the expression,
  not inside a subquery

We'll call such expression a time expression.

During parsing we no longer set OriginalOffset field in sub-queries and
vector selectors, instead we set a new OriginalOffsetExpr field to the
time expression, even if the expression is a literal number.

Before evaluating the overall PromQL expression, the engine shall
evaluate the time expressions and set the OriginalOffset field in vector
selectors and subqueries to the calculated value. This makes the change
fairly non intrusive. Later we can change the code to start using the
expression more directly. Note: this prohibits using time() function
inside a sub-query as the evaluation time is not constant inside a
sub-query.

Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
2025-02-03 13:08:35 +01:00

4739 lines
113 KiB
Go
Raw Blame History

// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package parser
import (
"errors"
"fmt"
"math"
"strings"
"testing"
"time"
"github.com/prometheus/common/model"
"github.com/stretchr/testify/require"
"github.com/prometheus/prometheus/model/histogram"
"github.com/prometheus/prometheus/model/labels"
"github.com/prometheus/prometheus/util/testutil"
"github.com/prometheus/prometheus/promql/parser/posrange"
)
var testExpr = []struct {
input string // The input to be parsed.
expected Expr // The expected expression AST.
fail bool // Whether parsing is supposed to fail.
errMsg string // If not empty the parsing error has to contain this string.
}{
// Scalars and scalar-to-scalar operations.
{
input: "1",
expected: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
},
{
input: "+Inf",
expected: &NumberLiteral{
Val: math.Inf(1),
PosRange: posrange.PositionRange{Start: 0, End: 4},
},
},
{
input: "-Inf",
expected: &NumberLiteral{
Val: math.Inf(-1),
PosRange: posrange.PositionRange{Start: 0, End: 4},
},
},
{
input: ".5",
expected: &NumberLiteral{
Val: 0.5,
PosRange: posrange.PositionRange{Start: 0, End: 2},
},
},
{
input: "5.",
expected: &NumberLiteral{
Val: 5,
PosRange: posrange.PositionRange{Start: 0, End: 2},
},
},
{
input: "123.4567",
expected: &NumberLiteral{
Val: 123.4567,
PosRange: posrange.PositionRange{Start: 0, End: 8},
},
},
{
input: "5e-3",
expected: &NumberLiteral{
Val: 0.005,
PosRange: posrange.PositionRange{Start: 0, End: 4},
},
},
{
input: "5e3",
expected: &NumberLiteral{
Val: 5000,
PosRange: posrange.PositionRange{Start: 0, End: 3},
},
},
{
input: "0xc",
expected: &NumberLiteral{
Val: 12,
PosRange: posrange.PositionRange{Start: 0, End: 3},
},
},
{
input: "0755",
expected: &NumberLiteral{
Val: 493,
PosRange: posrange.PositionRange{Start: 0, End: 4},
},
},
{
input: "+5.5e-3",
expected: &NumberLiteral{
Val: 0.0055,
PosRange: posrange.PositionRange{Start: 0, End: 7},
},
},
{
input: "-0755",
expected: &NumberLiteral{
Val: -493,
PosRange: posrange.PositionRange{Start: 0, End: 5},
},
},
{
input: "1 + 1",
expected: &BinaryExpr{
Op: ADD,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
},
},
{
input: "1 - 1",
expected: &BinaryExpr{
Op: SUB,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
},
},
{
input: "1 * 1",
expected: &BinaryExpr{
Op: MUL,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
},
},
{
input: "1 % 1",
expected: &BinaryExpr{
Op: MOD,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
},
},
{
input: "1 / 1",
expected: &BinaryExpr{
Op: DIV,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
},
},
{
input: "1 == bool 1",
expected: &BinaryExpr{
Op: EQLC,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 10, End: 11},
},
ReturnBool: true,
},
},
{
input: "1 != bool 1",
expected: &BinaryExpr{
Op: NEQ,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 10, End: 11},
},
ReturnBool: true,
},
},
{
input: "1 > bool 1",
expected: &BinaryExpr{
Op: GTR,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 9, End: 10},
},
ReturnBool: true,
},
},
{
input: "1 >= bool 1",
expected: &BinaryExpr{
Op: GTE,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 10, End: 11},
},
ReturnBool: true,
},
},
{
input: "1 < bool 1",
expected: &BinaryExpr{
Op: LSS,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 9, End: 10},
},
ReturnBool: true,
},
},
{
input: "1 <= bool 1",
expected: &BinaryExpr{
Op: LTE,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 10, End: 11},
},
ReturnBool: true,
},
},
{
input: "-1^2",
expected: &UnaryExpr{
Op: SUB,
Expr: &BinaryExpr{
Op: POW,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 1, End: 2},
},
RHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 3, End: 4},
},
},
},
},
{
input: "-1*2",
expected: &BinaryExpr{
Op: MUL,
LHS: &NumberLiteral{
Val: -1,
PosRange: posrange.PositionRange{Start: 0, End: 2},
},
RHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 3, End: 4},
},
},
},
{
input: "-1+2",
expected: &BinaryExpr{
Op: ADD,
LHS: &NumberLiteral{
Val: -1,
PosRange: posrange.PositionRange{Start: 0, End: 2},
},
RHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 3, End: 4},
},
},
},
{
input: "-1^-2",
expected: &UnaryExpr{
Op: SUB,
Expr: &BinaryExpr{
Op: POW,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 1, End: 2},
},
RHS: &NumberLiteral{
Val: -2,
PosRange: posrange.PositionRange{Start: 3, End: 5},
},
},
},
},
{
input: "+1 + -2 * 1",
expected: &BinaryExpr{
Op: ADD,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 2},
},
RHS: &BinaryExpr{
Op: MUL,
LHS: &NumberLiteral{
Val: -2,
PosRange: posrange.PositionRange{Start: 5, End: 7},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 10, End: 11},
},
},
},
},
{
input: "1 + 2/(3*1)",
expected: &BinaryExpr{
Op: ADD,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &BinaryExpr{
Op: DIV,
LHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 4, End: 5},
},
RHS: &ParenExpr{
Expr: &BinaryExpr{
Op: MUL,
LHS: &NumberLiteral{
Val: 3,
PosRange: posrange.PositionRange{Start: 7, End: 8},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 9, End: 10},
},
},
PosRange: posrange.PositionRange{Start: 6, End: 11},
},
},
},
},
{
input: "1 < bool 2 - 1 * 2",
expected: &BinaryExpr{
Op: LSS,
ReturnBool: true,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 0, End: 1},
},
RHS: &BinaryExpr{
Op: SUB,
LHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 9, End: 10},
},
RHS: &BinaryExpr{
Op: MUL,
LHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 13, End: 14},
},
RHS: &NumberLiteral{
Val: 2,
PosRange: posrange.PositionRange{Start: 17, End: 18},
},
},
},
},
},
{
input: "-some_metric",
expected: &UnaryExpr{
Op: SUB,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 1,
End: 12,
},
},
},
},
{
input: "+some_metric",
expected: &UnaryExpr{
Op: ADD,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 1,
End: 12,
},
},
},
},
{
input: " +some_metric",
expected: &UnaryExpr{
Op: ADD,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 2,
End: 13,
},
},
StartPos: 1,
},
},
{
input: ` +{"some_metric"}`,
expected: &UnaryExpr{
Op: ADD,
Expr: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 2,
End: 17,
},
},
StartPos: 1,
},
},
{
input: "",
fail: true,
errMsg: "no expression found in input",
},
{
input: "# just a comment\n\n",
fail: true,
errMsg: "no expression found in input",
},
{
input: "1+",
fail: true,
errMsg: "unexpected end of input",
},
{
input: ".",
fail: true,
errMsg: "unexpected character: '.'",
},
{
input: "2.5.",
fail: true,
errMsg: `1:1: parse error: bad number or duration syntax: "2.5."`,
},
{
input: "100..4",
fail: true,
errMsg: `1:1: parse error: bad number or duration syntax: "100.."`,
},
{
input: "0deadbeef",
fail: true,
errMsg: "bad number or duration syntax: \"0de\"",
},
{
input: "1 /",
fail: true,
errMsg: "unexpected end of input",
},
{
input: "*1",
fail: true,
errMsg: "unexpected <op:*>",
},
{
input: "(1))",
fail: true,
errMsg: "unexpected right parenthesis ')'",
},
{
input: "((1)",
fail: true,
errMsg: "unclosed left parenthesis",
},
{
input: "999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999",
fail: true,
errMsg: "out of range",
},
{
input: "(",
fail: true,
errMsg: "unclosed left parenthesis",
},
{
input: "1 and 1",
fail: true,
errMsg: "set operator \"and\" not allowed in binary scalar expression",
},
{
input: "1 == 1",
fail: true,
errMsg: "1:3: parse error: comparisons between scalars must use BOOL modifier",
},
{
input: "1 or 1",
fail: true,
errMsg: "set operator \"or\" not allowed in binary scalar expression",
},
{
input: "1 unless 1",
fail: true,
errMsg: "set operator \"unless\" not allowed in binary scalar expression",
},
{
input: "1 !~ 1",
fail: true,
errMsg: `unexpected character after '!': '~'`,
},
{
input: "1 =~ 1",
fail: true,
errMsg: `unexpected character after '=': '~'`,
},
{
input: `-"string"`,
fail: true,
errMsg: `unary expression only allowed on expressions of type scalar or instant vector, got "string"`,
},
{
input: `-test[5m]`,
fail: true,
errMsg: `unary expression only allowed on expressions of type scalar or instant vector, got "range vector"`,
},
{
input: `*test`,
fail: true,
errMsg: "unexpected <op:*>",
},
{
input: "1 offset 1d",
fail: true,
errMsg: "1:1: parse error: offset modifier must be preceded by an instant vector selector or range vector selector or a subquery",
},
{
input: "foo offset 1s offset 2s",
fail: true,
errMsg: "offset may not be set multiple times",
},
{
input: "a - on(b) ignoring(c) d",
fail: true,
errMsg: "1:11: parse error: unexpected <ignoring>",
},
// Vector binary operations.
{
input: "foo * bar",
expected: &BinaryExpr{
Op: MUL,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 9,
},
},
VectorMatching: &VectorMatching{Card: CardOneToOne},
},
},
{
input: "foo * sum",
expected: &BinaryExpr{
Op: MUL,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "sum",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "sum"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 9,
},
},
VectorMatching: &VectorMatching{Card: CardOneToOne},
},
},
{
input: "foo == 1",
expected: &BinaryExpr{
Op: EQLC,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 7, End: 8},
},
},
},
{
input: "foo == bool 1",
expected: &BinaryExpr{
Op: EQLC,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &NumberLiteral{
Val: 1,
PosRange: posrange.PositionRange{Start: 12, End: 13},
},
ReturnBool: true,
},
},
{
input: "2.5 / bar",
expected: &BinaryExpr{
Op: DIV,
LHS: &NumberLiteral{
Val: 2.5,
PosRange: posrange.PositionRange{Start: 0, End: 3},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 9,
},
},
},
},
{
input: "foo and bar",
expected: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 8,
End: 11,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
},
{
input: "foo or bar",
expected: &BinaryExpr{
Op: LOR,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 7,
End: 10,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
},
{
input: "foo unless bar",
expected: &BinaryExpr{
Op: LUNLESS,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 11,
End: 14,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
},
{
// Test and/or precedence and reassigning of operands.
input: "foo + bar or bla and blub",
expected: &BinaryExpr{
Op: LOR,
LHS: &BinaryExpr{
Op: ADD,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 9,
},
},
VectorMatching: &VectorMatching{Card: CardOneToOne},
},
RHS: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "bla",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bla"),
},
PosRange: posrange.PositionRange{
Start: 13,
End: 16,
},
},
RHS: &VectorSelector{
Name: "blub",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "blub"),
},
PosRange: posrange.PositionRange{
Start: 21,
End: 25,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
},
{
// Test and/or/unless precedence.
input: "foo and bar unless baz or qux",
expected: &BinaryExpr{
Op: LOR,
LHS: &BinaryExpr{
Op: LUNLESS,
LHS: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 8,
End: 11,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
RHS: &VectorSelector{
Name: "baz",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "baz"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 22,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
RHS: &VectorSelector{
Name: "qux",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "qux"),
},
PosRange: posrange.PositionRange{
Start: 26,
End: 29,
},
},
VectorMatching: &VectorMatching{Card: CardManyToMany},
},
},
{
// Test precedence and reassigning of operands.
input: "bar + on(foo) bla / on(baz, buz) group_right(test) blub",
expected: &BinaryExpr{
Op: ADD,
LHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &BinaryExpr{
Op: DIV,
LHS: &VectorSelector{
Name: "bla",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bla"),
},
PosRange: posrange.PositionRange{
Start: 14,
End: 17,
},
},
RHS: &VectorSelector{
Name: "blub",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "blub"),
},
PosRange: posrange.PositionRange{
Start: 51,
End: 55,
},
},
VectorMatching: &VectorMatching{
Card: CardOneToMany,
MatchingLabels: []string{"baz", "buz"},
On: true,
Include: []string{"test"},
},
},
VectorMatching: &VectorMatching{
Card: CardOneToOne,
MatchingLabels: []string{"foo"},
On: true,
},
},
},
{
input: "foo * on(test,blub) bar",
expected: &BinaryExpr{
Op: MUL,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 20,
End: 23,
},
},
VectorMatching: &VectorMatching{
Card: CardOneToOne,
MatchingLabels: []string{"test", "blub"},
On: true,
},
},
},
{
input: "foo * on(test,blub) group_left bar",
expected: &BinaryExpr{
Op: MUL,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 31,
End: 34,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToOne,
MatchingLabels: []string{"test", "blub"},
On: true,
},
},
},
{
input: "foo and on(test,blub) bar",
expected: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 22,
End: 25,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{"test", "blub"},
On: true,
},
},
},
{
input: "foo and on() bar",
expected: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 13,
End: 16,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{},
On: true,
},
},
},
{
input: "foo and ignoring(test,blub) bar",
expected: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 28,
End: 31,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{"test", "blub"},
},
},
},
{
input: "foo and ignoring() bar",
expected: &BinaryExpr{
Op: LAND,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 22,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{},
},
},
},
{
input: "foo unless on(bar) baz",
expected: &BinaryExpr{
Op: LUNLESS,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "baz",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "baz"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 22,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{"bar"},
On: true,
},
},
},
{
input: "foo / on(test,blub) group_left(bar) bar",
expected: &BinaryExpr{
Op: DIV,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 36,
End: 39,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToOne,
MatchingLabels: []string{"test", "blub"},
On: true,
Include: []string{"bar"},
},
},
},
{
input: "foo / ignoring(test,blub) group_left(blub) bar",
expected: &BinaryExpr{
Op: DIV,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 43,
End: 46,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToOne,
MatchingLabels: []string{"test", "blub"},
Include: []string{"blub"},
},
},
},
{
input: "foo / ignoring(test,blub) group_left(bar) bar",
expected: &BinaryExpr{
Op: DIV,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 42,
End: 45,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToOne,
MatchingLabels: []string{"test", "blub"},
Include: []string{"bar"},
},
},
},
{
input: "foo - on(test,blub) group_right(bar,foo) bar",
expected: &BinaryExpr{
Op: SUB,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 41,
End: 44,
},
},
VectorMatching: &VectorMatching{
Card: CardOneToMany,
MatchingLabels: []string{"test", "blub"},
Include: []string{"bar", "foo"},
On: true,
},
},
},
{
input: "foo - ignoring(test,blub) group_right(bar,foo) bar",
expected: &BinaryExpr{
Op: SUB,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 47,
End: 50,
},
},
VectorMatching: &VectorMatching{
Card: CardOneToMany,
MatchingLabels: []string{"test", "blub"},
Include: []string{"bar", "foo"},
},
},
},
{
input: "foo and 1",
fail: true,
errMsg: "set operator \"and\" not allowed in binary scalar expression",
},
{
input: "1 and foo",
fail: true,
errMsg: "set operator \"and\" not allowed in binary scalar expression",
},
{
input: "foo or 1",
fail: true,
errMsg: "set operator \"or\" not allowed in binary scalar expression",
},
{
input: "1 or foo",
fail: true,
errMsg: "set operator \"or\" not allowed in binary scalar expression",
},
{
input: "foo unless 1",
fail: true,
errMsg: "set operator \"unless\" not allowed in binary scalar expression",
},
{
input: "1 unless foo",
fail: true,
errMsg: "set operator \"unless\" not allowed in binary scalar expression",
},
{
input: "1 or on(bar) foo",
fail: true,
errMsg: "vector matching only allowed between instant vectors",
},
{
input: "foo == on(bar) 10",
fail: true,
errMsg: "vector matching only allowed between instant vectors",
},
{
input: "foo + group_left(baz) bar",
fail: true,
errMsg: "unexpected <group_left>",
},
{
input: "foo and on(bar) group_left(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"and\" operation",
},
{
input: "foo and on(bar) group_right(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"and\" operation",
},
{
input: "foo or on(bar) group_left(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"or\" operation",
},
{
input: "foo or on(bar) group_right(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"or\" operation",
},
{
input: "foo unless on(bar) group_left(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"unless\" operation",
},
{
input: "foo unless on(bar) group_right(baz) bar",
fail: true,
errMsg: "no grouping allowed for \"unless\" operation",
},
{
input: `http_requests{group="production"} + on(instance) group_left(job,instance) cpu_count{type="smp"}`,
fail: true,
errMsg: "label \"instance\" must not occur in ON and GROUP clause at once",
},
{
input: "foo + bool bar",
fail: true,
errMsg: "bool modifier can only be used on comparison operators",
},
{
input: "foo + bool 10",
fail: true,
errMsg: "bool modifier can only be used on comparison operators",
},
{
input: "foo and bool 10",
fail: true,
errMsg: "bool modifier can only be used on comparison operators",
},
// Test Vector selector.
{
input: "foo",
expected: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
},
{
input: "min",
expected: &VectorSelector{
Name: "min",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "min"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
},
{
input: "foo offset 5m",
expected: &VectorSelector{
Name: "foo",
OriginalOffsetExpr: &NumberLiteral{Val: float64(5 * time.Minute / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 13,
},
},
},
{
input: "foo offset -7m",
expected: &VectorSelector{
Name: "foo",
OriginalOffsetExpr: &NumberLiteral{Val: float64(-7 * time.Minute / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 14,
},
},
},
{
input: `foo OFFSET 1h30m`,
expected: &VectorSelector{
Name: "foo",
OriginalOffsetExpr: &NumberLiteral{Val: float64(90 * time.Minute / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 16,
},
},
},
{
input: `foo OFFSET 1m30ms`,
expected: &VectorSelector{
Name: "foo",
OriginalOffsetExpr: &NumberLiteral{Val: 60.03},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 17,
},
},
},
{
// 0 1 2
// 123456789012345678901234567890
input: `foo offset (scalar(vector(1)))`,
expected: &VectorSelector{
Name: "foo",
OriginalOffsetExpr: &ParenExpr{
Expr: &Call{
Func: &Function{
Name: "scalar",
ArgTypes: []ValueType{ValueTypeVector},
ReturnType: ValueTypeScalar,
},
Args: Expressions{
&Call{
Func: &Function{
Name: "vector",
ArgTypes: []ValueType{ValueTypeScalar},
ReturnType: ValueTypeVector,
},
Args: Expressions{
&NumberLiteral{
PosRange: posrange.PositionRange{
Start: 26,
End: 27,
},
Val: 1.0,
},
},
PosRange: posrange.PositionRange{
Start: 19,
End: 28,
},
},
},
PosRange: posrange.PositionRange{
Start: 12,
End: 29,
},
},
PosRange: posrange.PositionRange{
Start: 11,
End: 30,
},
},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 30,
},
},
},
{
input: `foo @ 1603774568`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(1603774568000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 16,
},
},
},
{
input: `foo @ -100`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(-100000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 10,
},
},
},
{
input: `foo @ .3`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(300),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 8,
},
},
},
{
input: `foo @ 3.`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(3000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 8,
},
},
},
{
input: `foo @ 3.33`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(3330),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 10,
},
},
},
{ // Rounding off.
input: `foo @ 3.3333`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(3333),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 12,
},
},
},
{ // Rounding off.
input: `foo @ 3.3335`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(3334),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 12,
},
},
},
{
input: `foo @ 3e2`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(300000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 9,
},
},
},
{
input: `foo @ 3e-1`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(300),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 10,
},
},
},
{
input: `foo @ 0xA`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(10000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 9,
},
},
},
{
input: `foo @ -3.3e1`,
expected: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(-33000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 12,
},
},
},
{
input: `foo @ +Inf`,
fail: true,
errMsg: "1:1: parse error: timestamp out of bounds for @ modifier: +Inf",
},
{
input: `foo @ -Inf`,
fail: true,
errMsg: "1:1: parse error: timestamp out of bounds for @ modifier: -Inf",
},
{
input: `foo @ NaN`,
fail: true,
errMsg: "1:1: parse error: timestamp out of bounds for @ modifier: NaN",
},
{
input: fmt.Sprintf(`foo @ %f`, float64(math.MaxInt64)+1),
fail: true,
errMsg: fmt.Sprintf("1:1: parse error: timestamp out of bounds for @ modifier: %f", float64(math.MaxInt64)+1),
},
{
input: fmt.Sprintf(`foo @ %f`, float64(math.MinInt64)-1),
fail: true,
errMsg: fmt.Sprintf("1:1: parse error: timestamp out of bounds for @ modifier: %f", float64(math.MinInt64)-1),
},
{
input: `foo:bar{a="bc"}`,
expected: &VectorSelector{
Name: "foo:bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "bc"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo:bar"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 15,
},
},
},
{
input: `{"foo"}`,
expected: &VectorSelector{
// When a metric is named inside the braces, the Name field is not set.
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 7,
},
},
},
{
input: `{'foo\'bar', 'a\\dos\\path'='boo\\urns'}`,
expected: &VectorSelector{
// When a metric is named inside the braces, the Name field is not set.
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, `foo'bar`),
MustLabelMatcher(labels.MatchEqual, `a\dos\path`, `boo\urns`),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 40,
},
},
},
{
input: `{'foo\'bar', ` + "`" + `a\dos\path` + "`" + `="boo"}`,
expected: &VectorSelector{
// When a metric is named inside the braces, the Name field is not set.
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, `foo'bar`),
MustLabelMatcher(labels.MatchEqual, `a\dos\path`, "boo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 32,
},
},
},
{
input: `{"foo", a="bc"}`,
expected: &VectorSelector{
// When a metric is named inside the braces, the Name field is not set.
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
MustLabelMatcher(labels.MatchEqual, "a", "bc"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 15,
},
},
},
{
input: `foo{NaN='bc'}`,
expected: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "NaN", "bc"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 13,
},
},
},
{
input: `foo{bar='}'}`,
expected: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "}"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 12,
},
},
},
{
input: `foo{a="b", foo!="bar", test=~"test", bar!~"baz"}`,
expected: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
MustLabelMatcher(labels.MatchRegexp, "test", "test"),
MustLabelMatcher(labels.MatchNotRegexp, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 48,
},
},
},
{
// Metric name in the middle of selector list is fine.
input: `{a="b", foo!="bar", "foo", test=~"test", bar!~"baz"}`,
expected: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
MustLabelMatcher(labels.MatchRegexp, "test", "test"),
MustLabelMatcher(labels.MatchNotRegexp, "bar", "baz"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 52,
},
},
},
{
input: `foo{a="b", foo!="bar", test=~"test", bar!~"baz",}`,
expected: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
MustLabelMatcher(labels.MatchRegexp, "test", "test"),
MustLabelMatcher(labels.MatchNotRegexp, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 49,
},
},
},
{
// Specifying __name__ twice inside the braces is ok.
input: `{__name__=~"bar", __name__!~"baz"}`,
expected: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchRegexp, model.MetricNameLabel, "bar"),
MustLabelMatcher(labels.MatchNotRegexp, model.MetricNameLabel, "baz"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 34,
},
},
},
{
// Specifying __name__ with equality twice inside the braces is even allowed.
input: `{__name__="bar", __name__="baz"}`,
expected: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "baz"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 32,
},
},
},
{
// Because the above are allowed, this is also allowed.
input: `{"bar", __name__="baz"}`,
expected: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "baz"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 23,
},
},
},
{
input: `{`,
fail: true,
errMsg: "unexpected end of input inside braces",
},
{
input: `}`,
fail: true,
errMsg: "unexpected character: '}'",
},
{
input: `some{`,
fail: true,
errMsg: "unexpected end of input inside braces",
},
{
input: `some}`,
fail: true,
errMsg: "unexpected character: '}'",
},
{
input: `some_metric{a=b}`,
fail: true,
errMsg: "unexpected identifier \"b\" in label matching, expected string",
},
{
input: `some_metric{a:b="b"}`,
fail: true,
errMsg: "unexpected character inside braces: ':'",
},
{
input: `foo{a*"b"}`,
fail: true,
errMsg: "unexpected character inside braces: '*'",
},
{
input: `foo{a>="b"}`,
fail: true,
// TODO(fabxc): willingly lexing wrong tokens allows for more precise error
// messages from the parser - consider if this is an option.
errMsg: "unexpected character inside braces: '>'",
},
{
input: "some_metric{a=\"\xff\"}",
fail: true,
errMsg: "1:15: parse error: invalid UTF-8 rune",
},
{
input: `foo{gibberish}`,
fail: true,
errMsg: `unexpected "}" in label matching, expected label matching operator`,
},
{
input: `foo{1}`,
fail: true,
errMsg: "unexpected character inside braces: '1'",
},
{
input: `{}`,
fail: true,
errMsg: "vector selector must contain at least one non-empty matcher",
},
{
input: `{x=""}`,
fail: true,
errMsg: "vector selector must contain at least one non-empty matcher",
},
{
input: `{x=~".*"}`,
fail: true,
errMsg: "vector selector must contain at least one non-empty matcher",
},
{
input: `{x!~".+"}`,
fail: true,
errMsg: "vector selector must contain at least one non-empty matcher",
},
{
input: `{x!="a"}`,
fail: true,
errMsg: "vector selector must contain at least one non-empty matcher",
},
// Although {"bar", __name__="baz"} is allowed (see above), specifying a
// metric name inside and outside the braces is not.
{
input: `foo{__name__="bar"}`,
fail: true,
errMsg: `metric name must not be set twice: "foo" or "bar"`,
},
{
input: `foo{__name__= =}`,
fail: true,
errMsg: `1:15: parse error: unexpected "=" in label matching, expected string`,
},
{
input: `foo{,}`,
fail: true,
errMsg: `unexpected "," in label matching, expected identifier or "}"`,
},
{
input: `foo{__name__ == "bar"}`,
fail: true,
errMsg: `1:15: parse error: unexpected "=" in label matching, expected string`,
},
{
input: `foo{__name__="bar" lol}`,
fail: true,
errMsg: `unexpected identifier "lol" in label matching, expected "," or "}"`,
},
{
input: `foo{"a"=}`,
fail: true,
errMsg: `unexpected "}" in label matching, expected string`,
},
// Test matrix selector.
{
input: "test[5s]",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * time.Second,
EndPos: 8,
},
},
{
input: "test[5m]",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * time.Minute,
EndPos: 8,
},
},
{
input: `foo[5m30s]`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 5*time.Minute + 30*time.Second,
EndPos: 10,
},
},
{
input: "test[5h] OFFSET 5m",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
OriginalOffsetExpr: &NumberLiteral{Val: float64(5 * time.Minute / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * time.Hour,
EndPos: 18,
},
},
{
input: "test[5d] OFFSET 10s",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
OriginalOffsetExpr: &NumberLiteral{Val: 10},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * 24 * time.Hour,
EndPos: 19,
},
},
{
input: "test[5w] offset 2w",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
OriginalOffsetExpr: &NumberLiteral{Val: float64(14 * 24 * time.Hour / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * 7 * 24 * time.Hour,
EndPos: 18,
},
},
{
input: `test{a="b"}[5y] OFFSET 3d`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
OriginalOffsetExpr: &NumberLiteral{Val: float64(3 * 24 * time.Hour / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
Range: 5 * 365 * 24 * time.Hour,
EndPos: 25,
},
},
{
input: `test{a="b"}[5m] OFFSET 3600`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
OriginalOffsetExpr: &NumberLiteral{Val: float64(1 * time.Hour / time.Second)},
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
Range: 5 * time.Minute,
EndPos: 27,
},
},
{
input: `foo[3ms] @ 2.345`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(2345),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 3 * time.Millisecond,
EndPos: 16,
},
},
{
input: `foo[4s180ms] @ 2.345`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(2345),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 4*time.Second + 180*time.Millisecond,
EndPos: 20,
},
},
{
input: `foo[4.18] @ 2.345`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(2345),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 4*time.Second + 180*time.Millisecond,
EndPos: 17,
},
},
{
input: `foo[4s18ms] @ 2.345`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(2345),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 4*time.Second + 18*time.Millisecond,
EndPos: 19,
},
},
{
input: `foo[4.018] @ 2.345`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
Timestamp: makeInt64Pointer(2345),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 4*time.Second + 18*time.Millisecond,
EndPos: 18,
},
},
{
input: `test{a="b"}[5y] @ 1603774699`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
Timestamp: makeInt64Pointer(1603774699000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "a", "b"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
Range: 5 * 365 * 24 * time.Hour,
EndPos: 28,
},
},
{
input: "test[5]",
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * time.Second,
EndPos: 7,
},
},
{
input: `some_metric[5m] @ 1m`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "some_metric",
Timestamp: makeInt64Pointer(60000),
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
Range: 5 * time.Minute,
EndPos: 20,
},
},
{
input: `foo[5mm]`,
fail: true,
errMsg: "bad number or duration syntax: \"5mm\"",
},
{
input: `foo[5m1]`,
fail: true,
errMsg: "bad number or duration syntax: \"5m1\"",
},
{
input: `foo[5m:1m1]`,
fail: true,
errMsg: "bad number or duration syntax: \"1m1\"",
},
{
input: `foo[5y1hs]`,
fail: true,
errMsg: "unknown unit \"hs\" in duration \"5y1hs\"",
},
{
input: `foo[5m1h]`,
fail: true,
errMsg: "not a valid duration string: \"5m1h\"",
},
{
input: `foo[5m1m]`,
fail: true,
errMsg: "not a valid duration string: \"5m1m\"",
},
{
input: `foo[0m]`,
fail: true,
errMsg: "duration must be greater than 0",
},
{
input: `foo["5m"]`,
fail: true,
},
{
input: `foo[]`,
fail: true,
errMsg: "bad number or duration syntax: \"\"",
},
{
input: `foo[-1]`,
fail: true,
errMsg: "bad number or duration syntax: \"\"",
},
{
input: `some_metric[5m] OFFSET 1mm`,
fail: true,
errMsg: "bad number or duration syntax: \"1mm\"",
},
{
input: `some_metric[5m] OFFSET`,
fail: true,
errMsg: "unexpected end of input in offset, expected number or duration",
},
{
input: `some_metric[5m] OFFSET (vector(1))`,
fail: true,
errMsg: "time expression does not evaluate to a scalar",
},
{
input: `some_metric OFFSET 1m[5m]`,
fail: true,
errMsg: "1:22: parse error: no offset modifiers allowed before range",
},
{
input: `some_metric[5m] @`,
fail: true,
errMsg: "1:18: parse error: unexpected end of input in @, expected timestamp",
},
{
input: `some_metric @ 1234 [5m]`,
fail: true,
errMsg: "1:20: parse error: no @ modifiers allowed before range",
},
{
input: `(foo + bar)[5m]`,
fail: true,
errMsg: "1:12: parse error: ranges only allowed for vector selectors",
},
// Test aggregation.
{
input: "sum by (foo)(some_metric)",
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 13,
End: 24,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 25,
},
},
},
{
input: `sum by ("foo bar")({"some.metric"})`,
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some.metric"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 34,
},
},
Grouping: []string{"foo bar"},
PosRange: posrange.PositionRange{
Start: 0,
End: 35,
},
},
},
{
input: `sum by ("foo)(some_metric{})`,
fail: true,
errMsg: "unterminated quoted string",
},
{
input: `sum by ("foo", bar, 'baz')({"some.metric"})`,
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some.metric"),
},
PosRange: posrange.PositionRange{
Start: 27,
End: 42,
},
},
Grouping: []string{"foo", "bar", "baz"},
PosRange: posrange.PositionRange{
Start: 0,
End: 43,
},
},
},
{
input: "avg by (foo)(some_metric)",
expected: &AggregateExpr{
Op: AVG,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 13,
End: 24,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 25,
},
},
},
{
input: "max by (foo)(some_metric)",
expected: &AggregateExpr{
Op: MAX,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 13,
End: 24,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 25,
},
},
},
{
input: "sum without (foo) (some_metric)",
expected: &AggregateExpr{
Op: SUM,
Without: true,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 30,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 31,
},
},
},
{
input: "sum (some_metric) without (foo)",
expected: &AggregateExpr{
Op: SUM,
Without: true,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 5,
End: 16,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 31,
},
},
},
{
input: "stddev(some_metric)",
expected: &AggregateExpr{
Op: STDDEV,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 7,
End: 18,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 19,
},
},
},
{
input: "stdvar by (foo)(some_metric)",
expected: &AggregateExpr{
Op: STDVAR,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 16,
End: 27,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 28,
},
},
},
{
input: "sum by ()(some_metric)",
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 10,
End: 21,
},
},
Grouping: []string{},
PosRange: posrange.PositionRange{
Start: 0,
End: 22,
},
},
},
{
input: "sum by (foo,bar,)(some_metric)",
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 18,
End: 29,
},
},
Grouping: []string{"foo", "bar"},
PosRange: posrange.PositionRange{
Start: 0,
End: 30,
},
},
},
{
input: "sum by (foo,)(some_metric)",
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 14,
End: 25,
},
},
Grouping: []string{"foo"},
PosRange: posrange.PositionRange{
Start: 0,
End: 26,
},
},
},
{
input: "topk(5, some_metric)",
expected: &AggregateExpr{
Op: TOPK,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 8,
End: 19,
},
},
Param: &NumberLiteral{
Val: 5,
PosRange: posrange.PositionRange{
Start: 5,
End: 6,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 20,
},
},
},
{
input: `count_values("value", some_metric)`,
expected: &AggregateExpr{
Op: COUNT_VALUES,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 22,
End: 33,
},
},
Param: &StringLiteral{
Val: "value",
PosRange: posrange.PositionRange{
Start: 13,
End: 20,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 34,
},
},
},
{
// Test usage of keywords as label names.
input: "sum without(and, by, avg, count, alert, annotations)(some_metric)",
expected: &AggregateExpr{
Op: SUM,
Without: true,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 53,
End: 64,
},
},
Grouping: []string{"and", "by", "avg", "count", "alert", "annotations"},
PosRange: posrange.PositionRange{
Start: 0,
End: 65,
},
},
},
{
input: "sum without(==)(some_metric)",
fail: true,
errMsg: "unexpected <op:==> in grouping opts, expected label",
},
{
input: "sum without(,)(some_metric)",
fail: true,
errMsg: `unexpected "," in grouping opts, expected label`,
},
{
input: "sum without(foo,,)(some_metric)",
fail: true,
errMsg: `unexpected "," in grouping opts, expected label`,
},
{
input: `sum some_metric by (test)`,
fail: true,
errMsg: "unexpected identifier \"some_metric\"",
},
{
input: `sum (some_metric) by test`,
fail: true,
errMsg: "unexpected identifier \"test\" in grouping opts",
},
{
input: `sum (some_metric) by test`,
fail: true,
errMsg: "unexpected identifier \"test\" in grouping opts",
},
{
input: `sum () by (test)`,
fail: true,
errMsg: "no arguments for aggregate expression provided",
},
{
input: "MIN keep_common (some_metric)",
fail: true,
errMsg: "1:5: parse error: unexpected identifier \"keep_common\"",
},
{
input: "MIN (some_metric) keep_common",
fail: true,
errMsg: `unexpected identifier "keep_common"`,
},
{
input: `sum (some_metric) without (test) by (test)`,
fail: true,
errMsg: "unexpected <by>",
},
{
input: `sum without (test) (some_metric) by (test)`,
fail: true,
errMsg: "unexpected <by>",
},
{
input: `topk(some_metric)`,
fail: true,
errMsg: "wrong number of arguments for aggregate expression provided, expected 2, got 1",
},
{
input: `topk(some_metric,)`,
fail: true,
errMsg: "trailing commas not allowed in function call args",
},
{
input: `topk(some_metric, other_metric)`,
fail: true,
errMsg: "1:6: parse error: expected type scalar in aggregation parameter, got instant vector",
},
{
input: `count_values(5, other_metric)`,
fail: true,
errMsg: "1:14: parse error: expected type string in aggregation parameter, got scalar",
},
{
input: `rate(some_metric[5m]) @ 1234`,
fail: true,
errMsg: "1:1: parse error: @ modifier must be preceded by an instant vector selector or range vector selector or a subquery",
},
// Test function calls.
{
input: "time()",
expected: &Call{
Func: MustGetFunction("time"),
Args: Expressions{},
PosRange: posrange.PositionRange{
Start: 0,
End: 6,
},
},
},
{
input: `floor(some_metric{foo!="bar"})`,
expected: &Call{
Func: MustGetFunction("floor"),
Args: Expressions{
&VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchNotEqual, "foo", "bar"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 29,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 30,
},
},
},
{
input: "rate(some_metric[5m])",
expected: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 5,
End: 16,
},
},
Range: 5 * time.Minute,
EndPos: 20,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 21,
},
},
},
{
input: "round(some_metric)",
expected: &Call{
Func: MustGetFunction("round"),
Args: Expressions{
&VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 17,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 18,
},
},
},
{
input: "round(some_metric, 5)",
expected: &Call{
Func: MustGetFunction("round"),
Args: Expressions{
&VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 6,
End: 17,
},
},
&NumberLiteral{
Val: 5,
PosRange: posrange.PositionRange{
Start: 19,
End: 20,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 21,
},
},
},
{
input: "floor()",
fail: true,
errMsg: "expected 1 argument(s) in call to \"floor\", got 0",
},
{
input: "floor(some_metric, other_metric)",
fail: true,
errMsg: "expected 1 argument(s) in call to \"floor\", got 2",
},
{
input: "floor(some_metric, 1)",
fail: true,
errMsg: "expected 1 argument(s) in call to \"floor\", got 2",
},
{
input: "floor(1)",
fail: true,
errMsg: "expected type instant vector in call to function \"floor\", got scalar",
},
{
input: "hour(some_metric, some_metric, some_metric)",
fail: true,
errMsg: "expected at most 1 argument(s) in call to \"hour\", got 3",
},
{
input: "time(some_metric)",
fail: true,
errMsg: "expected 0 argument(s) in call to \"time\", got 1",
},
{
input: "non_existent_function_far_bar()",
fail: true,
errMsg: "unknown function with name \"non_existent_function_far_bar\"",
},
{
input: "rate(some_metric)",
fail: true,
errMsg: "expected type range vector in call to function \"rate\", got instant vector",
},
{
input: "label_replace(a, `b`, `c\xff`, `d`, `.*`)",
fail: true,
errMsg: "1:23: parse error: invalid UTF-8 rune",
},
// Fuzzing regression tests.
{
input: "-=",
fail: true,
errMsg: `unexpected "="`,
},
{
input: "++-++-+-+-<",
fail: true,
errMsg: `unexpected <op:<>`,
},
{
input: "e-+=/(0)",
fail: true,
errMsg: `unexpected "="`,
},
{
input: "a>b()",
fail: true,
errMsg: `unknown function`,
},
{
input: "rate(avg)",
fail: true,
errMsg: `expected type range vector`,
},
{
// This is testing that we are not re-rendering the expression string for each error, which would timeout.
input: "(" + strings.Repeat("-{}-1", 10000) + ")" + strings.Repeat("[1m:]", 1000),
fail: true,
errMsg: `1:3: parse error: vector selector must contain at least one non-empty matcher`,
},
{
input: "sum(sum)",
expected: &AggregateExpr{
Op: SUM,
Expr: &VectorSelector{
Name: "sum",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "sum"),
},
PosRange: posrange.PositionRange{
Start: 4,
End: 7,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 8,
},
},
},
{
input: "a + sum",
expected: &BinaryExpr{
Op: ADD,
LHS: &VectorSelector{
Name: "a",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "a"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 1,
},
},
RHS: &VectorSelector{
Name: "sum",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "sum"),
},
PosRange: posrange.PositionRange{
Start: 4,
End: 7,
},
},
VectorMatching: &VectorMatching{},
},
},
// String quoting and escape sequence interpretation tests.
{
input: `"double-quoted string \" with escaped quote"`,
expected: &StringLiteral{
Val: "double-quoted string \" with escaped quote",
PosRange: posrange.PositionRange{Start: 0, End: 44},
},
},
{
input: `'single-quoted string \' with escaped quote'`,
expected: &StringLiteral{
Val: "single-quoted string ' with escaped quote",
PosRange: posrange.PositionRange{Start: 0, End: 44},
},
},
{
input: "`backtick-quoted string`",
expected: &StringLiteral{
Val: "backtick-quoted string",
PosRange: posrange.PositionRange{Start: 0, End: 24},
},
},
{
input: `"\a\b\f\n\r\t\v\\\" - \xFF\377\u1234\U00010111\U0001011111☺"`,
expected: &StringLiteral{
Val: "\a\b\f\n\r\t\v\\\" - \xFF\377\u1234\U00010111\U0001011111☺",
PosRange: posrange.PositionRange{Start: 0, End: 62},
},
},
{
input: `'\a\b\f\n\r\t\v\\\' - \xFF\377\u1234\U00010111\U0001011111☺'`,
expected: &StringLiteral{
Val: "\a\b\f\n\r\t\v\\' - \xFF\377\u1234\U00010111\U0001011111☺",
PosRange: posrange.PositionRange{Start: 0, End: 62},
},
},
{
input: "`" + `\a\b\f\n\r\t\v\\\"\' - \xFF\377\u1234\U00010111\U0001011111☺` + "`",
expected: &StringLiteral{
Val: `\a\b\f\n\r\t\v\\\"\' - \xFF\377\u1234\U00010111\U0001011111☺`,
PosRange: posrange.PositionRange{Start: 0, End: 64},
},
},
{
input: "`\\``",
fail: true,
errMsg: "unterminated raw string",
},
{
input: `"\`,
fail: true,
errMsg: "escape sequence not terminated",
},
{
input: `"\c"`,
fail: true,
errMsg: "unknown escape sequence U+0063 'c'",
},
{
input: `"\x."`,
fail: true,
errMsg: "illegal character U+002E '.' in escape sequence",
},
// Subquery.
{
input: `foo{bar="baz"}[`,
fail: true,
errMsg: `1:16: parse error: bad number or duration syntax: ""`,
},
{
input: `foo{bar="baz"}[10m:6s]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 14,
},
},
Range: 10 * time.Minute,
Step: 6 * time.Second,
EndPos: 22,
},
},
{
input: `foo{bar="baz"}[10m5s:1h6ms]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 14,
},
},
Range: 10*time.Minute + 5*time.Second,
Step: time.Hour + 6*time.Millisecond,
EndPos: 27,
},
},
{
input: `foo[10m:]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 10 * time.Minute,
EndPos: 9,
},
},
{
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:5s])`,
expected: &Call{
Func: MustGetFunction("min_over_time"),
Args: Expressions{
&SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 33,
},
},
Range: 2 * time.Second,
EndPos: 37,
},
},
PosRange: posrange.PositionRange{
Start: 14,
End: 38,
},
},
Range: 5 * time.Minute,
Step: 5 * time.Second,
EndPos: 45,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 46,
},
},
},
{
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:])[4m:3s]`,
expected: &SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("min_over_time"),
Args: Expressions{
&SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 33,
},
},
Range: 2 * time.Second,
EndPos: 37,
},
},
PosRange: posrange.PositionRange{
Start: 14,
End: 38,
},
},
Range: 5 * time.Minute,
EndPos: 43,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 44,
},
},
Range: 4 * time.Minute,
Step: 3 * time.Second,
EndPos: 51,
},
},
{
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:] offset 4m)[4m:3s]`,
expected: &SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("min_over_time"),
Args: Expressions{
&SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 33,
},
},
Range: 2 * time.Second,
EndPos: 37,
},
},
PosRange: posrange.PositionRange{
Start: 14,
End: 38,
},
},
Range: 5 * time.Minute,
OriginalOffsetExpr: &NumberLiteral{Val: float64(4 * time.Minute / time.Second)},
EndPos: 53,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 54,
},
},
Range: 4 * time.Minute,
Step: 3 * time.Second,
EndPos: 61,
},
},
{
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:] @ 1603775091)[4m:3s]`,
expected: &SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("min_over_time"),
Args: Expressions{
&SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 33,
},
},
Range: 2 * time.Second,
EndPos: 37,
},
},
PosRange: posrange.PositionRange{
Start: 14,
End: 38,
},
},
Range: 5 * time.Minute,
Timestamp: makeInt64Pointer(1603775091000),
EndPos: 56,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 57,
},
},
Range: 4 * time.Minute,
Step: 3 * time.Second,
EndPos: 64,
},
},
{
input: `min_over_time(rate(foo{bar="baz"}[2s])[5m:] @ -160377509)[4m:3s]`,
expected: &SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("min_over_time"),
Args: Expressions{
&SubqueryExpr{
Expr: &Call{
Func: MustGetFunction("rate"),
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 33,
},
},
Range: 2 * time.Second,
EndPos: 37,
},
},
PosRange: posrange.PositionRange{
Start: 14,
End: 38,
},
},
Range: 5 * time.Minute,
Timestamp: makeInt64Pointer(-160377509000),
EndPos: 56,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 57,
},
},
Range: 4 * time.Minute,
Step: 3 * time.Second,
EndPos: 64,
},
},
{
input: "sum without(and, by, avg, count, alert, annotations)(some_metric) [30m:10s]",
expected: &SubqueryExpr{
Expr: &AggregateExpr{
Op: SUM,
Without: true,
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 53,
End: 64,
},
},
Grouping: []string{"and", "by", "avg", "count", "alert", "annotations"},
PosRange: posrange.PositionRange{
Start: 0,
End: 65,
},
},
Range: 30 * time.Minute,
Step: 10 * time.Second,
EndPos: 75,
},
},
{
input: `some_metric OFFSET 1m [10m:5s]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 21,
},
OriginalOffsetExpr: &NumberLiteral{Val: float64(1 * time.Minute / time.Second)},
},
Range: 10 * time.Minute,
Step: 5 * time.Second,
EndPos: 30,
},
},
{
input: `some_metric @ 123 [10m:5s]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 17,
},
Timestamp: makeInt64Pointer(123000),
},
Range: 10 * time.Minute,
Step: 5 * time.Second,
EndPos: 26,
},
},
{
input: `some_metric @ 123 offset 1m [10m:5s]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 27,
},
Timestamp: makeInt64Pointer(123000),
OriginalOffsetExpr: &NumberLiteral{Val: float64(1 * time.Minute / time.Second)},
},
Range: 10 * time.Minute,
Step: 5 * time.Second,
EndPos: 36,
},
},
{
input: `some_metric offset 1m @ 123 [10m:5s]`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 27,
},
Timestamp: makeInt64Pointer(123000),
OriginalOffsetExpr: &NumberLiteral{Val: float64(1 * time.Minute / time.Second)},
},
Range: 10 * time.Minute,
Step: 5 * time.Second,
EndPos: 36,
},
},
{
input: `some_metric[10m:5s] offset 1m @ 123`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "some_metric",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "some_metric"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
Timestamp: makeInt64Pointer(123000),
OriginalOffsetExpr: &NumberLiteral{Val: float64(1 * time.Minute / time.Second)},
Range: 10 * time.Minute,
Step: 5 * time.Second,
EndPos: 35,
},
},
{
input: `(foo + bar{nm="val"})[5m:]`,
expected: &SubqueryExpr{
Expr: &ParenExpr{
Expr: &BinaryExpr{
Op: ADD,
VectorMatching: &VectorMatching{
Card: CardOneToOne,
},
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 1,
End: 4,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "nm", "val"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 7,
End: 20,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 21,
},
},
Range: 5 * time.Minute,
EndPos: 26,
},
},
{
input: `(foo + bar{nm="val"})[5m:] offset 10m`,
expected: &SubqueryExpr{
Expr: &ParenExpr{
Expr: &BinaryExpr{
Op: ADD,
VectorMatching: &VectorMatching{
Card: CardOneToOne,
},
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 1,
End: 4,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "nm", "val"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 7,
End: 20,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 21,
},
},
Range: 5 * time.Minute,
OriginalOffsetExpr: &NumberLiteral{Val: float64(10 * time.Minute / time.Second)},
EndPos: 37,
},
},
{
input: `(foo + bar{nm="val"} @ 1234)[5m:] @ 1603775019`,
expected: &SubqueryExpr{
Expr: &ParenExpr{
Expr: &BinaryExpr{
Op: ADD,
VectorMatching: &VectorMatching{
Card: CardOneToOne,
},
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 1,
End: 4,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "nm", "val"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
Timestamp: makeInt64Pointer(1234000),
PosRange: posrange.PositionRange{
Start: 7,
End: 27,
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 28,
},
},
Range: 5 * time.Minute,
Timestamp: makeInt64Pointer(1603775019000),
EndPos: 46,
},
},
{
input: "test[5d] OFFSET 10s [10m:5s]",
fail: true,
errMsg: "1:1: parse error: subquery is only allowed on instant vector, got matrix",
},
{
input: `(foo + bar{nm="val"})[5m:][10m:5s]`,
fail: true,
errMsg: `1:1: parse error: subquery is only allowed on instant vector, got matrix`,
},
{
input: "rate(food[1m])[1h] offset 1h",
fail: true,
errMsg: `1:15: parse error: ranges only allowed for vector selectors`,
},
{
input: "rate(food[1m])[1h] @ 100",
fail: true,
errMsg: `1:15: parse error: ranges only allowed for vector selectors`,
},
// Preprocessors.
{
input: `foo @ start()`,
expected: &VectorSelector{
Name: "foo",
StartOrEnd: START,
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 13,
},
},
},
{
input: `foo @ end()`,
expected: &VectorSelector{
Name: "foo",
StartOrEnd: END,
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 11,
},
},
},
{
input: `test[5y] @ start()`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
StartOrEnd: START,
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * 365 * 24 * time.Hour,
EndPos: 18,
},
},
{
input: `test[5y] @ end()`,
expected: &MatrixSelector{
VectorSelector: &VectorSelector{
Name: "test",
StartOrEnd: END,
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "test"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 4,
},
},
Range: 5 * 365 * 24 * time.Hour,
EndPos: 16,
},
},
{
input: `foo[10m:6s] @ start()`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 10 * time.Minute,
Step: 6 * time.Second,
StartOrEnd: START,
EndPos: 21,
},
},
{
input: `foo[10m:6s] @ end()`,
expected: &SubqueryExpr{
Expr: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
Range: 10 * time.Minute,
Step: 6 * time.Second,
StartOrEnd: END,
EndPos: 19,
},
},
{
input: `start()`,
fail: true,
errMsg: `1:6: parse error: unexpected "("`,
},
{
input: `end()`,
fail: true,
errMsg: `1:4: parse error: unexpected "("`,
},
// Check that start and end functions do not mask metrics.
{
input: `start`,
expected: &VectorSelector{
Name: "start",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "start"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 5,
},
},
},
{
input: `end`,
expected: &VectorSelector{
Name: "end",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "end"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
},
{
input: `start{end="foo"}`,
expected: &VectorSelector{
Name: "start",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "end", "foo"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "start"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 16,
},
},
},
{
input: `end{start="foo"}`,
expected: &VectorSelector{
Name: "end",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "start", "foo"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "end"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 16,
},
},
},
{
input: `foo unless on(start) bar`,
expected: &BinaryExpr{
Op: LUNLESS,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 21,
End: 24,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{"start"},
On: true,
},
},
},
{
input: `foo unless on(end) bar`,
expected: &BinaryExpr{
Op: LUNLESS,
LHS: &VectorSelector{
Name: "foo",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "foo"),
},
PosRange: posrange.PositionRange{
Start: 0,
End: 3,
},
},
RHS: &VectorSelector{
Name: "bar",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "bar"),
},
PosRange: posrange.PositionRange{
Start: 19,
End: 22,
},
},
VectorMatching: &VectorMatching{
Card: CardManyToMany,
MatchingLabels: []string{"end"},
On: true,
},
},
},
{
input: `info(rate(http_request_counter_total{}[5m]))`,
expected: &Call{
Func: MustGetFunction("info"),
Args: Expressions{
&Call{
Func: MustGetFunction("rate"),
PosRange: posrange.PositionRange{
Start: 5,
End: 43,
},
Args: Expressions{
&MatrixSelector{
VectorSelector: &VectorSelector{
Name: "http_request_counter_total",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "http_request_counter_total"),
},
PosRange: posrange.PositionRange{
Start: 10,
End: 38,
},
},
EndPos: 42,
Range: 5 * time.Minute,
},
},
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 44,
},
},
},
{
input: `info(rate(http_request_counter_total{}[5m]), target_info{foo="bar"})`,
fail: true,
errMsg: `1:46: parse error: expected label selectors only, got vector selector instead`,
},
{
input: `info(http_request_counter_total{namespace="zzz"}, {foo="bar", bar="baz"})`,
expected: &Call{
Func: MustGetFunction("info"),
Args: Expressions{
&VectorSelector{
Name: "http_request_counter_total",
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "namespace", "zzz"),
MustLabelMatcher(labels.MatchEqual, model.MetricNameLabel, "http_request_counter_total"),
},
PosRange: posrange.PositionRange{
Start: 5,
End: 48,
},
},
&VectorSelector{
LabelMatchers: []*labels.Matcher{
MustLabelMatcher(labels.MatchEqual, "foo", "bar"),
MustLabelMatcher(labels.MatchEqual, "bar", "baz"),
},
PosRange: posrange.PositionRange{
Start: 50,
End: 72,
},
BypassEmptyMatcherCheck: true,
},
},
PosRange: posrange.PositionRange{
Start: 0,
End: 73,
},
},
},
}
func makeInt64Pointer(val int64) *int64 {
valp := new(int64)
*valp = val
return valp
}
func readable(s string) string {
const maxReadableStringLen = 40
if len(s) < maxReadableStringLen {
return s
}
return s[:maxReadableStringLen] + "..."
}
func TestParseExpressions(t *testing.T) {
// Enable experimental functions testing.
EnableExperimentalFunctions = true
t.Cleanup(func() {
EnableExperimentalFunctions = false
})
model.NameValidationScheme = model.UTF8Validation
for _, test := range testExpr {
t.Run(readable(test.input), func(t *testing.T) {
expr, err := ParseExpr(test.input)
// Unexpected errors are always caused by a bug.
require.NotEqual(t, err, errUnexpected, "unexpected error occurred")
if !test.fail {
require.NoError(t, err)
expected := test.expected
// The FastRegexMatcher is not comparable with a deep equal, so only compare its String() version.
if actualVector, ok := expr.(*VectorSelector); ok {
require.IsType(t, &VectorSelector{}, test.expected, "error on input '%s'", test.input)
expectedVector := test.expected.(*VectorSelector)
require.Len(t, actualVector.LabelMatchers, len(expectedVector.LabelMatchers), "error on input '%s'", test.input)
for i := 0; i < len(actualVector.LabelMatchers); i++ {
expectedMatcher := expectedVector.LabelMatchers[i].String()
actualMatcher := actualVector.LabelMatchers[i].String()
require.Equal(t, expectedMatcher, actualMatcher, "unexpected label matcher '%s' on input '%s'", actualMatcher, test.input)
}
// Make a shallow copy of the expected expr (because the test cases are defined in a global variable)
// and then reset the LabelMatcher to not compared them with the following deep equal.
expectedCopy := *expectedVector
expectedCopy.LabelMatchers = nil
expected = &expectedCopy
actualVector.LabelMatchers = nil
}
require.Equal(t, expected, expr, "error on input '%s'", test.input)
} else {
require.Error(t, err, "expected an error on input '%s', got nil", test.input)
require.ErrorContains(t, err, test.errMsg, "unexpected error on input '%s', expected '%s', got '%s'", test.input, test.errMsg, err.Error())
var errorList ParseErrors
ok := errors.As(err, &errorList)
require.True(t, ok, "unexpected error type")
for _, e := range errorList {
require.LessOrEqual(t, 0, e.PositionRange.Start, "parse error has negative position\nExpression '%s'\nError: %v", test.input, e)
require.LessOrEqual(t, e.PositionRange.Start, e.PositionRange.End, "parse error has negative length\nExpression '%s'\nError: %v", test.input, e)
require.LessOrEqual(t, e.PositionRange.End, posrange.Pos(len(test.input)), "parse error is not contained in input\nExpression '%s'\nError: %v", test.input, e)
}
}
})
}
}
func TestParseSeriesDesc(t *testing.T) {
tests := []struct {
name string
input string
expectedLabels labels.Labels
expectedValues []SequenceValue
expectError string
}{
{
name: "empty string",
expectedLabels: labels.EmptyLabels(),
expectedValues: []SequenceValue{},
},
{
name: "simple line",
input: `http_requests{job="api-server", instance="0", group="production"}`,
expectedLabels: labels.FromStrings(
"__name__", "http_requests",
"group", "production",
"instance", "0",
"job", "api-server",
),
expectedValues: []SequenceValue{},
},
{
name: "label name characters that require quoting",
input: `{"http.requests", "service.name"="api-server", instance="0", group="canary"} 0+50x2`,
expectedLabels: labels.FromStrings(
"__name__", "http.requests",
"group", "canary",
"instance", "0",
"service.name", "api-server",
),
expectedValues: []SequenceValue{
{Value: 0, Omitted: false, Histogram: (*histogram.FloatHistogram)(nil)},
{Value: 50, Omitted: false, Histogram: (*histogram.FloatHistogram)(nil)},
{Value: 100, Omitted: false, Histogram: (*histogram.FloatHistogram)(nil)},
},
},
{
name: "confirm failure on junk after identifier",
input: `{"http.requests"xx} 0+50x2`,
expectError: `parse error: unexpected identifier "xx" in label set, expected "," or "}"`,
},
{
name: "confirm failure on bare operator after identifier",
input: `{"http.requests"=, x="y"} 0+50x2`,
expectError: `parse error: unexpected "," in label set, expected string`,
},
{
name: "confirm failure on unterminated string identifier",
input: `{"http.requests} 0+50x2`,
expectError: `parse error: unterminated quoted string`,
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
l, v, err := ParseSeriesDesc(tc.input)
if tc.expectError != "" {
require.Contains(t, err.Error(), tc.expectError)
} else {
require.NoError(t, err)
require.True(t, labels.Equal(tc.expectedLabels, l))
require.Equal(t, tc.expectedValues, v)
}
})
}
}
// NaN has no equality. Thus, we need a separate test for it.
func TestNaNExpression(t *testing.T) {
expr, err := ParseExpr("NaN")
require.NoError(t, err)
nl, ok := expr.(*NumberLiteral)
require.True(t, ok, "expected number literal but got %T", expr)
require.True(t, math.IsNaN(nl.Val), "expected 'NaN' in number literal but got %v", nl.Val)
}
var testSeries = []struct {
input string
expectedMetric labels.Labels
expectedValues []SequenceValue
fail bool
}{
{
input: `{} 1 2 3`,
expectedMetric: labels.EmptyLabels(),
expectedValues: newSeq(1, 2, 3),
}, {
input: `{a="b"} -1 2 3`,
expectedMetric: labels.FromStrings("a", "b"),
expectedValues: newSeq(-1, 2, 3),
}, {
input: `my_metric 1 2 3`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric"),
expectedValues: newSeq(1, 2, 3),
}, {
input: `my_metric{} 1 2 3`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric"),
expectedValues: newSeq(1, 2, 3),
}, {
input: `my_metric{a="b"} 1 2 3`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 2, 3),
}, {
input: `my_metric{a="b"} 1 2 3-10x4`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 2, 3, -7, -17, -27, -37),
}, {
input: `my_metric{a="b"} 1 2 3-0x4`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 2, 3, 3, 3, 3, 3),
}, {
input: `{} 1+1`,
fail: true,
}, {
input: `{} 1x0`,
expectedMetric: labels.EmptyLabels(),
expectedValues: newSeq(1),
}, {
input: `{} 1+1x0`,
expectedMetric: labels.EmptyLabels(),
expectedValues: newSeq(1),
}, {
input: `my_metric{a="b"} 1 3 _ 5 _x4`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 3, none, 5, none, none, none, none),
}, {
input: `my_metric{a="b"} 1 3 _ 5 _a4`,
fail: true,
}, {
input: `my_metric{a="b"} 1 -1`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, -1),
}, {
input: `my_metric{a="b"} 1 +1`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 1),
}, {
input: `my_metric{a="b"} 1 -1 -3-10x4 7 9 +5`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, -1, -3, -13, -23, -33, -43, 7, 9, 5),
}, {
input: `my_metric{a="b"} 1 +1 +4 -6 -2 8`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 1, 4, -6, -2, 8),
}, {
// Trailing spaces should be correctly handles.
input: `my_metric{a="b"} 1 2 3 `,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", "b"),
expectedValues: newSeq(1, 2, 3),
}, {
// Handle escaped unicode characters as whole label values.
input: `my_metric{a="\u70ac"} 1 2 3`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", `炬`),
expectedValues: newSeq(1, 2, 3),
}, {
// Handle escaped unicode characters as partial label values.
input: `my_metric{a="\u70ac = torch"} 1 2 3`,
expectedMetric: labels.FromStrings(labels.MetricName, "my_metric", "a", `炬 = torch`),
expectedValues: newSeq(1, 2, 3),
}, {
input: `my_metric{a="b"} -3-3 -3`,
fail: true,
}, {
input: `my_metric{a="b"} -3 -3-3`,
fail: true,
}, {
input: `my_metric{a="b"} -3 _-2`,
fail: true,
}, {
input: `my_metric{a="b"} -3 3+3x4-4`,
fail: true,
},
}
// For these tests only, we use the smallest float64 to signal an omitted value.
const none = math.SmallestNonzeroFloat64
func newSeq(vals ...float64) (res []SequenceValue) {
for _, v := range vals {
if v == none {
res = append(res, SequenceValue{Omitted: true})
} else {
res = append(res, SequenceValue{Value: v})
}
}
return res
}
func TestParseHistogramSeries(t *testing.T) {
for _, test := range []struct {
name string
input string
expected []histogram.FloatHistogram
expectedError string
}{
{
name: "empty histogram",
input: "{} {{}}",
expected: []histogram.FloatHistogram{{}},
},
{
name: "empty histogram with space",
input: "{} {{ }}",
expected: []histogram.FloatHistogram{{}},
},
{
name: "all properties used",
input: `{} {{schema:1 sum:0.3 count:3.1 z_bucket:7.1 z_bucket_w:0.05 buckets:[5.1 10 7] offset:3 n_buckets:[4.1 5] n_offset:5 counter_reset_hint:gauge}}`,
expected: []histogram.FloatHistogram{{
Schema: 1,
Sum: 0.3,
Count: 3.1,
ZeroCount: 7.1,
ZeroThreshold: 0.05,
PositiveBuckets: []float64{5.1, 10, 7},
PositiveSpans: []histogram.Span{{Offset: 3, Length: 3}},
NegativeBuckets: []float64{4.1, 5},
NegativeSpans: []histogram.Span{{Offset: 5, Length: 2}},
CounterResetHint: histogram.GaugeType,
}},
},
{
name: "all properties used - with spaces",
input: `{} {{schema:1 sum:0.3 count:3 z_bucket:7 z_bucket_w:5 buckets:[5 10 7 ] offset:-3 n_buckets:[4 5] n_offset:5 counter_reset_hint:gauge }}`,
expected: []histogram.FloatHistogram{{
Schema: 1,
Sum: 0.3,
Count: 3,
ZeroCount: 7,
ZeroThreshold: 5,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{Offset: -3, Length: 3}},
NegativeBuckets: []float64{4, 5},
NegativeSpans: []histogram.Span{{Offset: 5, Length: 2}},
CounterResetHint: histogram.GaugeType,
}},
},
{
name: "all properties used, with negative values where supported",
input: `{} {{schema:1 sum:-0.3 count:-3.1 z_bucket:-7.1 z_bucket_w:0.05 buckets:[-5.1 -10 -7] offset:-3 n_buckets:[-4.1 -5] n_offset:-5 counter_reset_hint:gauge}}`,
expected: []histogram.FloatHistogram{{
Schema: 1,
Sum: -0.3,
Count: -3.1,
ZeroCount: -7.1,
ZeroThreshold: 0.05,
PositiveBuckets: []float64{-5.1, -10, -7},
PositiveSpans: []histogram.Span{{Offset: -3, Length: 3}},
NegativeBuckets: []float64{-4.1, -5},
NegativeSpans: []histogram.Span{{Offset: -5, Length: 2}},
CounterResetHint: histogram.GaugeType,
}},
},
{
name: "static series",
input: `{} {{buckets:[5 10 7] schema:1}}x2`,
expected: []histogram.FloatHistogram{
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
},
},
{
name: "static series - x0",
input: `{} {{buckets:[5 10 7] schema:1}}x0`,
expected: []histogram.FloatHistogram{
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
},
},
{
name: "2 histograms stated explicitly",
input: `{} {{buckets:[5 10 7] schema:1}} {{buckets:[1 2 3] schema:1}}`,
expected: []histogram.FloatHistogram{
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
{
Schema: 1,
PositiveBuckets: []float64{1, 2, 3},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
},
},
{
name: "series with increment - with different schemas",
input: `{} {{buckets:[5] schema:0}}+{{buckets:[1 2] schema:1}}x2`,
expected: []histogram.FloatHistogram{
{
PositiveBuckets: []float64{5},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 1,
}},
},
{
PositiveBuckets: []float64{6, 2},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 2,
}},
},
{
PositiveBuckets: []float64{7, 4},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 2,
}},
},
},
},
{
name: "series with decrement",
input: `{} {{buckets:[5 10 7] schema:1}}-{{buckets:[1 2 3] schema:1}}x2`,
expected: []histogram.FloatHistogram{
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
{
Schema: 1,
PositiveBuckets: []float64{4, 8, 4},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
{
Schema: 1,
PositiveBuckets: []float64{3, 6, 1},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
},
},
{
name: "series with increment - 0x",
input: `{} {{buckets:[5 10 7] schema:1}}+{{buckets:[1 2 3] schema:1}}x0`,
expected: []histogram.FloatHistogram{
{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
},
},
},
{
name: "series with different schemas - second one is smaller",
input: `{} {{buckets:[5 10 7] schema:1}}+{{buckets:[1 2 3] schema:0}}x2`,
expectedError: `1:63: parse error: error combining histograms: cannot merge from schema 0 to 1`,
},
{
name: "different order",
input: `{} {{buckets:[5 10 7] schema:1}}`,
expected: []histogram.FloatHistogram{{
Schema: 1,
PositiveBuckets: []float64{5, 10, 7},
PositiveSpans: []histogram.Span{{
Offset: 0,
Length: 3,
}},
}},
},
{
name: "double property",
input: `{} {{schema:1 schema:1}}`,
expectedError: `1:1: parse error: duplicate key "schema" in histogram`,
},
{
name: "unknown property",
input: `{} {{foo:1}}`,
expectedError: `1:6: parse error: bad histogram descriptor found: "foo"`,
},
{
name: "space before :",
input: `{} {{schema :1}}`,
expectedError: "1:6: parse error: missing `:` for histogram descriptor",
},
{
name: "space after :",
input: `{} {{schema: 1}}`,
expectedError: `1:13: parse error: unexpected " " in series values`,
},
{
name: "space after [",
input: `{} {{buckets:[ 1]}}`,
expectedError: `1:15: parse error: unexpected " " in series values`,
},
{
name: "space after {{",
input: `{} {{ schema:1}}`,
expectedError: `1:7: parse error: unexpected "<Item 57372>" "schema" in series values`,
},
{
name: "invalid counter reset hint value",
input: `{} {{counter_reset_hint:foo}}`,
expectedError: `1:25: parse error: bad histogram descriptor found: "foo"`,
},
{
name: "'unknown' counter reset hint value",
input: `{} {{counter_reset_hint:unknown}}`,
expected: []histogram.FloatHistogram{{
CounterResetHint: histogram.UnknownCounterReset,
}},
},
{
name: "'reset' counter reset hint value",
input: `{} {{counter_reset_hint:reset}}`,
expected: []histogram.FloatHistogram{{
CounterResetHint: histogram.CounterReset,
}},
},
{
name: "'not_reset' counter reset hint value",
input: `{} {{counter_reset_hint:not_reset}}`,
expected: []histogram.FloatHistogram{{
CounterResetHint: histogram.NotCounterReset,
}},
},
{
name: "'gauge' counter reset hint value",
input: `{} {{counter_reset_hint:gauge}}`,
expected: []histogram.FloatHistogram{{
CounterResetHint: histogram.GaugeType,
}},
},
} {
t.Run(test.name, func(t *testing.T) {
_, vals, err := ParseSeriesDesc(test.input)
if test.expectedError != "" {
require.EqualError(t, err, test.expectedError)
return
}
require.NoError(t, err)
var got []histogram.FloatHistogram
for _, v := range vals {
got = append(got, *v.Histogram)
}
require.Equal(t, test.expected, got)
})
}
}
func TestHistogramTestExpression(t *testing.T) {
for _, test := range []struct {
name string
input histogram.FloatHistogram
expected string
}{
{
name: "single positive and negative span",
input: histogram.FloatHistogram{
Schema: 1,
Sum: -0.3,
Count: 3.1,
ZeroCount: 7.1,
ZeroThreshold: 0.05,
PositiveBuckets: []float64{5.1, 10, 7},
PositiveSpans: []histogram.Span{{Offset: -3, Length: 3}},
NegativeBuckets: []float64{4.1, 5},
NegativeSpans: []histogram.Span{{Offset: -5, Length: 2}},
},
expected: `{{schema:1 count:3.1 sum:-0.3 z_bucket:7.1 z_bucket_w:0.05 offset:-3 buckets:[5.1 10 7] n_offset:-5 n_buckets:[4.1 5]}}`,
},
{
name: "multiple positive and negative spans",
input: histogram.FloatHistogram{
PositiveBuckets: []float64{5.1, 10, 7},
PositiveSpans: []histogram.Span{
{Offset: -3, Length: 1},
{Offset: 4, Length: 2},
},
NegativeBuckets: []float64{4.1, 5, 7, 8, 9},
NegativeSpans: []histogram.Span{
{Offset: -1, Length: 2},
{Offset: 2, Length: 3},
},
},
expected: `{{offset:-3 buckets:[5.1 0 0 0 0 10 7] n_offset:-1 n_buckets:[4.1 5 0 0 7 8 9]}}`,
},
{
name: "known counter reset hint",
input: histogram.FloatHistogram{
Schema: 1,
Sum: -0.3,
Count: 3.1,
ZeroCount: 7.1,
ZeroThreshold: 0.05,
PositiveBuckets: []float64{5.1, 10, 7},
PositiveSpans: []histogram.Span{{Offset: -3, Length: 3}},
NegativeBuckets: []float64{4.1, 5},
NegativeSpans: []histogram.Span{{Offset: -5, Length: 2}},
CounterResetHint: histogram.CounterReset,
},
expected: `{{schema:1 count:3.1 sum:-0.3 z_bucket:7.1 z_bucket_w:0.05 counter_reset_hint:reset offset:-3 buckets:[5.1 10 7] n_offset:-5 n_buckets:[4.1 5]}}`,
},
} {
t.Run(test.name, func(t *testing.T) {
expression := test.input.TestExpression()
require.Equal(t, test.expected, expression)
_, vals, err := ParseSeriesDesc("{} " + expression)
require.NoError(t, err)
require.Len(t, vals, 1)
canonical := vals[0].Histogram
require.NotNil(t, canonical)
require.Equal(t, test.expected, canonical.TestExpression())
})
}
}
func TestParseSeries(t *testing.T) {
for _, test := range testSeries {
metric, vals, err := ParseSeriesDesc(test.input)
// Unexpected errors are always caused by a bug.
require.NotEqual(t, err, errUnexpected, "unexpected error occurred")
if !test.fail {
require.NoError(t, err)
testutil.RequireEqual(t, test.expectedMetric, metric, "error on input '%s'", test.input)
require.Equal(t, test.expectedValues, vals, "error in input '%s'", test.input)
} else {
require.Error(t, err)
}
}
}
func TestRecoverParserRuntime(t *testing.T) {
p := NewParser("foo bar")
var err error
defer func() {
require.Equal(t, errUnexpected, err)
}()
defer p.recover(&err)
// Cause a runtime panic.
var a []int
a[123] = 1
}
func TestRecoverParserError(t *testing.T) {
p := NewParser("foo bar")
var err error
e := errors.New("custom error")
defer func() {
require.EqualError(t, err, e.Error())
}()
defer p.recover(&err)
panic(e)
}
func TestExtractSelectors(t *testing.T) {
for _, tc := range [...]struct {
input string
expected []string
}{
{
"foo",
[]string{`{__name__="foo"}`},
}, {
`foo{bar="baz"}`,
[]string{`{bar="baz", __name__="foo"}`},
}, {
`foo{bar="baz"} / flip{flop="flap"}`,
[]string{`{bar="baz", __name__="foo"}`, `{flop="flap", __name__="flip"}`},
}, {
`rate(foo[5m])`,
[]string{`{__name__="foo"}`},
}, {
`vector(1)`,
[]string{},
},
} {
expr, err := ParseExpr(tc.input)
require.NoError(t, err)
var expected [][]*labels.Matcher
for _, s := range tc.expected {
selector, err := ParseMetricSelector(s)
require.NoError(t, err)
expected = append(expected, selector)
}
require.Equal(t, expected, ExtractSelectors(expr))
}
}
func TestParseCustomFunctions(t *testing.T) {
funcs := Functions
funcs["custom_func"] = &Function{
Name: "custom_func",
ArgTypes: []ValueType{ValueTypeMatrix},
ReturnType: ValueTypeVector,
}
input := "custom_func(metric[1m])"
p := NewParser(input, WithFunctions(funcs))
expr, err := p.ParseExpr()
require.NoError(t, err)
call, ok := expr.(*Call)
require.True(t, ok)
require.Equal(t, "custom_func", call.Func.Name)
}
Reference in New Issue View Git Blame Copy Permalink