586 lines
15 KiB
Go
586 lines
15 KiB
Go
// Copyright 2018 Prometheus Team
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package template
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import (
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tmplhtml "html/template"
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"net/url"
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"sync"
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"testing"
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tmpltext "text/template"
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"time"
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"github.com/prometheus/common/model"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/alertmanager/types"
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)
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func TestPairNames(t *testing.T) {
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pairs := Pairs{
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{"name1", "value1"},
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{"name2", "value2"},
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{"name3", "value3"},
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}
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expected := []string{"name1", "name2", "name3"}
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require.EqualValues(t, expected, pairs.Names())
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}
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func TestPairValues(t *testing.T) {
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pairs := Pairs{
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{"name1", "value1"},
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{"name2", "value2"},
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{"name3", "value3"},
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}
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expected := []string{"value1", "value2", "value3"}
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require.EqualValues(t, expected, pairs.Values())
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}
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func TestPairsString(t *testing.T) {
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pairs := Pairs{{"name1", "value1"}}
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require.Equal(t, "name1=value1", pairs.String())
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pairs = append(pairs, Pair{"name2", "value2"})
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require.Equal(t, "name1=value1, name2=value2", pairs.String())
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}
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func TestKVSortedPairs(t *testing.T) {
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kv := KV{"d": "dVal", "b": "bVal", "c": "cVal"}
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expectedPairs := Pairs{
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{"b", "bVal"},
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{"c", "cVal"},
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{"d", "dVal"},
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}
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for i, p := range kv.SortedPairs() {
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require.EqualValues(t, p.Name, expectedPairs[i].Name)
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require.EqualValues(t, p.Value, expectedPairs[i].Value)
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}
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// validates alertname always comes first
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kv = KV{"d": "dVal", "b": "bVal", "c": "cVal", "alertname": "alert", "a": "aVal"}
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expectedPairs = Pairs{
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{"alertname", "alert"},
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{"a", "aVal"},
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{"b", "bVal"},
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{"c", "cVal"},
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{"d", "dVal"},
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}
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for i, p := range kv.SortedPairs() {
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require.EqualValues(t, p.Name, expectedPairs[i].Name)
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require.EqualValues(t, p.Value, expectedPairs[i].Value)
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}
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}
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func TestKVRemove(t *testing.T) {
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kv := KV{
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"key1": "val1",
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"key2": "val2",
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"key3": "val3",
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"key4": "val4",
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}
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kv = kv.Remove([]string{"key2", "key4"})
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expected := []string{"key1", "key3"}
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require.EqualValues(t, expected, kv.Names())
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}
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func TestAlertsFiring(t *testing.T) {
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alerts := Alerts{
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{Status: string(model.AlertFiring)},
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{Status: string(model.AlertResolved)},
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{Status: string(model.AlertFiring)},
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{Status: string(model.AlertResolved)},
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{Status: string(model.AlertResolved)},
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}
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for _, alert := range alerts.Firing() {
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if alert.Status != string(model.AlertFiring) {
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t.Errorf("unexpected status %q", alert.Status)
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}
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}
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}
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func TestAlertsResolved(t *testing.T) {
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alerts := Alerts{
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{Status: string(model.AlertFiring)},
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{Status: string(model.AlertResolved)},
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{Status: string(model.AlertFiring)},
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{Status: string(model.AlertResolved)},
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{Status: string(model.AlertResolved)},
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}
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for _, alert := range alerts.Resolved() {
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if alert.Status != string(model.AlertResolved) {
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t.Errorf("unexpected status %q", alert.Status)
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}
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}
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}
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func TestData(t *testing.T) {
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u, err := url.Parse("http://example.com/")
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require.NoError(t, err)
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tmpl := &Template{ExternalURL: u}
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startTime := time.Time{}.Add(1 * time.Second)
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endTime := time.Time{}.Add(2 * time.Second)
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for _, tc := range []struct {
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receiver string
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groupLabels model.LabelSet
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alerts []*types.Alert
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exp *Data
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}{
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{
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receiver: "webhook",
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exp: &Data{
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Receiver: "webhook",
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Status: "resolved",
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Alerts: Alerts{},
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GroupLabels: KV{},
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CommonLabels: KV{},
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CommonAnnotations: KV{},
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ExternalURL: u.String(),
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},
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},
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{
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receiver: "webhook",
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groupLabels: model.LabelSet{
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model.LabelName("job"): model.LabelValue("foo"),
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},
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alerts: []*types.Alert{
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{
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Alert: model.Alert{
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StartsAt: startTime,
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Labels: model.LabelSet{
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model.LabelName("severity"): model.LabelValue("warning"),
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model.LabelName("job"): model.LabelValue("foo"),
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},
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Annotations: model.LabelSet{
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model.LabelName("description"): model.LabelValue("something happened"),
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model.LabelName("runbook"): model.LabelValue("foo"),
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},
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},
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},
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{
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Alert: model.Alert{
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StartsAt: startTime,
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EndsAt: endTime,
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Labels: model.LabelSet{
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model.LabelName("severity"): model.LabelValue("critical"),
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model.LabelName("job"): model.LabelValue("foo"),
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},
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Annotations: model.LabelSet{
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model.LabelName("description"): model.LabelValue("something else happened"),
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model.LabelName("runbook"): model.LabelValue("foo"),
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},
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},
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},
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},
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exp: &Data{
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Receiver: "webhook",
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Status: "firing",
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Alerts: Alerts{
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{
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Status: "firing",
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Labels: KV{"severity": "warning", "job": "foo"},
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Annotations: KV{"description": "something happened", "runbook": "foo"},
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StartsAt: startTime,
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Fingerprint: "9266ef3da838ad95",
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},
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{
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Status: "resolved",
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Labels: KV{"severity": "critical", "job": "foo"},
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Annotations: KV{"description": "something else happened", "runbook": "foo"},
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StartsAt: startTime,
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EndsAt: endTime,
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Fingerprint: "3b15fd163d36582e",
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},
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},
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GroupLabels: KV{"job": "foo"},
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CommonLabels: KV{"job": "foo"},
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CommonAnnotations: KV{"runbook": "foo"},
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ExternalURL: u.String(),
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},
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},
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{
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receiver: "webhook",
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groupLabels: model.LabelSet{},
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alerts: []*types.Alert{
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{
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Alert: model.Alert{
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StartsAt: startTime,
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Labels: model.LabelSet{
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model.LabelName("severity"): model.LabelValue("warning"),
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model.LabelName("job"): model.LabelValue("foo"),
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},
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Annotations: model.LabelSet{
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model.LabelName("description"): model.LabelValue("something happened"),
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model.LabelName("runbook"): model.LabelValue("foo"),
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},
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},
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},
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{
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Alert: model.Alert{
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StartsAt: startTime,
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EndsAt: endTime,
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Labels: model.LabelSet{
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model.LabelName("severity"): model.LabelValue("critical"),
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model.LabelName("job"): model.LabelValue("bar"),
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},
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Annotations: model.LabelSet{
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model.LabelName("description"): model.LabelValue("something else happened"),
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model.LabelName("runbook"): model.LabelValue("bar"),
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},
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},
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},
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},
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exp: &Data{
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Receiver: "webhook",
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Status: "firing",
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Alerts: Alerts{
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{
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Status: "firing",
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Labels: KV{"severity": "warning", "job": "foo"},
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Annotations: KV{"description": "something happened", "runbook": "foo"},
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StartsAt: startTime,
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Fingerprint: "9266ef3da838ad95",
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},
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{
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Status: "resolved",
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Labels: KV{"severity": "critical", "job": "bar"},
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Annotations: KV{"description": "something else happened", "runbook": "bar"},
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StartsAt: startTime,
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EndsAt: endTime,
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Fingerprint: "c7e68cb08e3e67f9",
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},
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},
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GroupLabels: KV{},
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CommonLabels: KV{},
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CommonAnnotations: KV{},
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ExternalURL: u.String(),
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},
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},
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} {
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tc := tc
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t.Run("", func(t *testing.T) {
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got := tmpl.Data(tc.receiver, tc.groupLabels, tc.alerts...)
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require.Equal(t, tc.exp, got)
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})
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}
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}
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func TestTemplateExpansion(t *testing.T) {
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tmpl, err := FromGlobs([]string{})
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require.NoError(t, err)
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for _, tc := range []struct {
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title string
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in string
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data interface{}
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html bool
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exp string
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fail bool
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}{
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{
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title: "Template without action",
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in: `abc`,
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exp: "abc",
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},
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{
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title: "Template with simple action",
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in: `{{ "abc" }}`,
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exp: "abc",
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},
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{
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title: "Template with invalid syntax",
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in: `{{ `,
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fail: true,
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},
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{
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title: "Template using toUpper",
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in: `{{ "abc" | toUpper }}`,
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exp: "ABC",
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},
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{
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title: "Template using toLower",
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in: `{{ "ABC" | toLower }}`,
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exp: "abc",
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},
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{
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title: "Template using title",
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in: `{{ "abc" | title }}`,
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exp: "Abc",
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},
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{
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title: "Template using TrimSpace",
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in: `{{ " a b c " | trimSpace }}`,
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exp: "a b c",
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},
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{
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title: "Template using positive match",
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in: `{{ if match "^a" "abc"}}abc{{ end }}`,
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exp: "abc",
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},
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{
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title: "Template using negative match",
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in: `{{ if match "abcd" "abc" }}abc{{ end }}`,
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exp: "",
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},
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{
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title: "Template using join",
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in: `{{ . | join "," }}`,
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data: []string{"a", "b", "c"},
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exp: "a,b,c",
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},
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{
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title: "Text template without HTML escaping",
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in: `{{ "<b>" }}`,
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exp: "<b>",
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},
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{
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title: "HTML template with escaping",
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in: `{{ "<b>" }}`,
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html: true,
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exp: "<b>",
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},
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{
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title: "HTML template using safeHTML",
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in: `{{ "<b>" | safeHtml }}`,
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html: true,
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exp: "<b>",
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},
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{
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title: "Template using reReplaceAll",
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in: `{{ reReplaceAll "ab" "AB" "abcdabcda"}}`,
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exp: "ABcdABcda",
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},
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{
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title: "Template using stringSlice",
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in: `{{ with .GroupLabels }}{{ with .Remove (stringSlice "key1" "key3") }}{{ .SortedPairs.Values }}{{ end }}{{ end }}`,
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data: Data{
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GroupLabels: KV{
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"key1": "key1",
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"key2": "key2",
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"key3": "key3",
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"key4": "key4",
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},
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},
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exp: "[key2 key4]",
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},
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} {
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tc := tc
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t.Run(tc.title, func(t *testing.T) {
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f := tmpl.ExecuteTextString
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if tc.html {
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f = tmpl.ExecuteHTMLString
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}
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got, err := f(tc.in, tc.data)
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if tc.fail {
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require.Error(t, err)
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return
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}
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require.NoError(t, err)
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require.Equal(t, tc.exp, got)
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})
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}
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}
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func TestTemplateExpansionWithOptions(t *testing.T) {
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testOptionWithAdditionalFuncs := func(funcs FuncMap) Option {
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return func(text *tmpltext.Template, html *tmplhtml.Template) {
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text.Funcs(tmpltext.FuncMap(funcs))
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html.Funcs(tmplhtml.FuncMap(funcs))
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}
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}
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for _, tc := range []struct {
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options []Option
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title string
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in string
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data interface{}
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html bool
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exp string
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fail bool
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}{
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{
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title: "Test custom function",
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options: []Option{testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }})},
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in: `{{ printFoo }}`,
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exp: "foo",
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},
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{
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title: "Test Default function with additional function added",
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options: []Option{testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }})},
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in: `{{ toUpper "test" }}`,
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exp: "TEST",
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},
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{
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title: "Test custom function is overridden by the DefaultFuncs",
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options: []Option{testOptionWithAdditionalFuncs(FuncMap{"toUpper": func(s string) string { return "foo" }})},
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in: `{{ toUpper "test" }}`,
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exp: "TEST",
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},
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{
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title: "Test later Option overrides the previous",
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options: []Option{
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testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "foo" }}),
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testOptionWithAdditionalFuncs(FuncMap{"printFoo": func() string { return "bar" }}),
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},
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in: `{{ printFoo }}`,
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exp: "bar",
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},
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} {
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tc := tc
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t.Run(tc.title, func(t *testing.T) {
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tmpl, err := FromGlobs([]string{}, tc.options...)
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require.NoError(t, err)
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f := tmpl.ExecuteTextString
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if tc.html {
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f = tmpl.ExecuteHTMLString
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}
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got, err := f(tc.in, tc.data)
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if tc.fail {
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require.Error(t, err)
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return
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}
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require.NoError(t, err)
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require.Equal(t, tc.exp, got)
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})
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}
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}
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// This test asserts that template functions are thread-safe.
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func TestTemplateFuncs(t *testing.T) {
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tmpl, err := FromGlobs([]string{})
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require.NoError(t, err)
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for _, tc := range []struct {
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title string
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in string
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data interface{}
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exp string
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expErr string
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}{{
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title: "Template using toUpper",
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in: `{{ "abc" | toUpper }}`,
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exp: "ABC",
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}, {
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title: "Template using toLower",
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in: `{{ "ABC" | toLower }}`,
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exp: "abc",
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}, {
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title: "Template using title",
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in: `{{ "abc" | title }}`,
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exp: "Abc",
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}, {
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title: "Template using trimSpace",
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in: `{{ " abc " | trimSpace }}`,
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exp: "abc",
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}, {
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title: "Template using join",
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in: `{{ . | join "," }}`,
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data: []string{"abc", "def"},
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exp: "abc,def",
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}, {
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title: "Template using match",
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in: `{{ match "[a-z]+" "abc" }}`,
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exp: "true",
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}, {
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title: "Template using reReplaceAll",
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in: `{{ reReplaceAll "ab" "AB" "abc" }}`,
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exp: "ABc",
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}, {
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title: "Template using date",
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in: `{{ . | date "2006-01-02" }}`,
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data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC),
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exp: "2024-01-01",
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}, {
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title: "Template using tz",
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in: `{{ . | tz "Europe/Paris" }}`,
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data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC),
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exp: "2024-01-01 09:15:30 +0100 CET",
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}, {
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title: "Template using invalid tz",
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in: `{{ . | tz "Invalid/Timezone" }}`,
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data: time.Date(2024, 1, 1, 8, 15, 30, 0, time.UTC),
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expErr: "template: :1:7: executing \"\" at <tz \"Invalid/Timezone\">: error calling tz: unknown time zone Invalid/Timezone",
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}, {
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title: "Template using HumanizeDuration - seconds - float64",
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in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
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data: []float64{0, 1, 60, 3600, 86400, 86400 + 3600, -(86400*2 + 3600*3 + 60*4 + 5), 899.99},
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exp: "0s:1s:1m 0s:1h 0m 0s:1d 0h 0m 0s:1d 1h 0m 0s:-2d 3h 4m 5s:14m 59s:",
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}, {
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title: "Template using HumanizeDuration - seconds - string.",
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in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
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data: []string{"0", "1", "60", "3600", "86400"},
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exp: "0s:1s:1m 0s:1h 0m 0s:1d 0h 0m 0s:",
|
|
}, {
|
|
title: "Template using HumanizeDuration - subsecond and fractional seconds - float64.",
|
|
in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
|
|
data: []float64{.1, .0001, .12345, 60.1, 60.5, 1.2345, 12.345},
|
|
exp: "100ms:100us:123.5ms:1m 0s:1m 0s:1.234s:12.35s:",
|
|
}, {
|
|
title: "Template using HumanizeDuration - subsecond and fractional seconds - string.",
|
|
in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
|
|
data: []string{".1", ".0001", ".12345", "60.1", "60.5", "1.2345", "12.345"},
|
|
exp: "100ms:100us:123.5ms:1m 0s:1m 0s:1.234s:12.35s:",
|
|
}, {
|
|
title: "Template using HumanizeDuration - string with error.",
|
|
in: `{{ humanizeDuration "one" }}`,
|
|
expErr: "template: :1:3: executing \"\" at <humanizeDuration \"one\">: error calling humanizeDuration: strconv.ParseFloat: parsing \"one\": invalid syntax",
|
|
}, {
|
|
title: "Template using HumanizeDuration - int.",
|
|
in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
|
|
data: []int{0, -1, 1, 1234567},
|
|
exp: "0s:-1s:1s:14d 6h 56m 7s:",
|
|
}, {
|
|
title: "Template using HumanizeDuration - uint.",
|
|
in: "{{ range . }}{{ humanizeDuration . }}:{{ end }}",
|
|
data: []uint{0, 1, 1234567},
|
|
exp: "0s:1s:14d 6h 56m 7s:",
|
|
}, {
|
|
title: "Template using since",
|
|
in: "{{ . | since | humanizeDuration }}",
|
|
data: time.Now().Add(-1 * time.Hour),
|
|
exp: "1h 0m 0s",
|
|
}} {
|
|
tc := tc
|
|
t.Run(tc.title, func(t *testing.T) {
|
|
wg := sync.WaitGroup{}
|
|
for i := 0; i < 10; i++ {
|
|
wg.Add(1)
|
|
go func() {
|
|
defer wg.Done()
|
|
got, err := tmpl.ExecuteTextString(tc.in, tc.data)
|
|
if tc.expErr == "" {
|
|
require.NoError(t, err)
|
|
require.Equal(t, tc.exp, got)
|
|
} else {
|
|
require.EqualError(t, err, tc.expErr)
|
|
require.Empty(t, got)
|
|
}
|
|
}()
|
|
}
|
|
wg.Wait()
|
|
})
|
|
}
|
|
}
|