mirror of
https://github.com/prometheus-community/postgres_exporter
synced 2025-02-27 16:01:05 +00:00
2402783205
* Stats_reset as null seems to actually be legitimate for new databases, so don't fail for it --------- Signed-off-by: Felix Yuan <felix.yuan@reddit.com> Co-authored-by: Ben Kochie <superq@gmail.com>
507 lines
17 KiB
Go
507 lines
17 KiB
Go
// Copyright 2023 The Prometheus Authors
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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 collector
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import (
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"context"
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"testing"
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"time"
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"github.com/DATA-DOG/go-sqlmock"
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"github.com/go-kit/log"
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"github.com/prometheus/client_golang/prometheus"
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dto "github.com/prometheus/client_model/go"
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"github.com/smartystreets/goconvey/convey"
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)
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func TestPGStatDatabaseCollector(t *testing.T) {
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db, mock, err := sqlmock.New()
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if err != nil {
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t.Fatalf("Error opening a stub db connection: %s", err)
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}
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defer db.Close()
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inst := &instance{db: db}
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columns := []string{
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"datid",
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"datname",
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"numbackends",
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"xact_commit",
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"xact_rollback",
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"blks_read",
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"blks_hit",
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"tup_returned",
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"tup_fetched",
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"tup_inserted",
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"tup_updated",
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"tup_deleted",
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"conflicts",
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"temp_files",
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"temp_bytes",
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"deadlocks",
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"blk_read_time",
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"blk_write_time",
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"stats_reset",
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}
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srT, err := time.Parse("2006-01-02 15:04:05.00000-07", "2023-05-25 17:10:42.81132-07")
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if err != nil {
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t.Fatalf("Error parsing time: %s", err)
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}
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rows := sqlmock.NewRows(columns).
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AddRow(
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"pid",
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"postgres",
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354,
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4945,
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289097744,
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1242257,
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int64(3275602074),
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89320867,
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450139,
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2034563757,
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0,
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int64(2725688749),
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23,
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52,
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74,
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925,
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16,
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823,
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srT)
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mock.ExpectQuery(sanitizeQuery(statDatabaseQuery)).WillReturnRows(rows)
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ch := make(chan prometheus.Metric)
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go func() {
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defer close(ch)
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c := PGStatDatabaseCollector{
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log: log.With(log.NewNopLogger(), "collector", "pg_stat_database"),
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}
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if err := c.Update(context.Background(), inst, ch); err != nil {
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t.Errorf("Error calling PGStatDatabaseCollector.Update: %s", err)
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}
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}()
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expected := []MetricResult{
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_GAUGE, value: 354},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 4945},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 289097744},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1242257},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 3275602074},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 89320867},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 450139},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2034563757},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 0},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2725688749},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 23},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 52},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 74},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 925},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 16},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 823},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1685059842},
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}
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convey.Convey("Metrics comparison", t, func() {
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for _, expect := range expected {
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m := readMetric(<-ch)
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convey.So(expect, convey.ShouldResemble, m)
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}
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})
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if err := mock.ExpectationsWereMet(); err != nil {
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t.Errorf("there were unfulfilled exceptions: %s", err)
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}
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}
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func TestPGStatDatabaseCollectorNullValues(t *testing.T) {
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db, mock, err := sqlmock.New()
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if err != nil {
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t.Fatalf("Error opening a stub db connection: %s", err)
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}
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defer db.Close()
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srT, err := time.Parse("2006-01-02 15:04:05.00000-07", "2023-05-25 17:10:42.81132-07")
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if err != nil {
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t.Fatalf("Error parsing time: %s", err)
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}
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inst := &instance{db: db}
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columns := []string{
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"datid",
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"datname",
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"numbackends",
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"xact_commit",
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"xact_rollback",
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"blks_read",
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"blks_hit",
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"tup_returned",
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"tup_fetched",
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"tup_inserted",
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"tup_updated",
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"tup_deleted",
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"conflicts",
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"temp_files",
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"temp_bytes",
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"deadlocks",
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"blk_read_time",
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"blk_write_time",
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"stats_reset",
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}
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rows := sqlmock.NewRows(columns).
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AddRow(
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nil,
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"postgres",
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354,
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4945,
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289097744,
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1242257,
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int64(3275602074),
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89320867,
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450139,
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2034563757,
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0,
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int64(2725688749),
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23,
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52,
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74,
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925,
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16,
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823,
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srT).
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AddRow(
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"pid",
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"postgres",
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354,
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4945,
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289097744,
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1242257,
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int64(3275602074),
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89320867,
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450139,
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2034563757,
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0,
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int64(2725688749),
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23,
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52,
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74,
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925,
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16,
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823,
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srT)
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mock.ExpectQuery(sanitizeQuery(statDatabaseQuery)).WillReturnRows(rows)
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ch := make(chan prometheus.Metric)
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go func() {
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defer close(ch)
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c := PGStatDatabaseCollector{
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log: log.With(log.NewNopLogger(), "collector", "pg_stat_database"),
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}
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if err := c.Update(context.Background(), inst, ch); err != nil {
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t.Errorf("Error calling PGStatDatabaseCollector.Update: %s", err)
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}
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}()
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expected := []MetricResult{
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_GAUGE, value: 354},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 4945},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 289097744},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1242257},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 3275602074},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 89320867},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 450139},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2034563757},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 0},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2725688749},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 23},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 52},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 74},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 925},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 16},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 823},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1685059842},
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}
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convey.Convey("Metrics comparison", t, func() {
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for _, expect := range expected {
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m := readMetric(<-ch)
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convey.So(expect, convey.ShouldResemble, m)
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}
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})
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if err := mock.ExpectationsWereMet(); err != nil {
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t.Errorf("there were unfulfilled exceptions: %s", err)
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}
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}
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func TestPGStatDatabaseCollectorRowLeakTest(t *testing.T) {
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db, mock, err := sqlmock.New()
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if err != nil {
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t.Fatalf("Error opening a stub db connection: %s", err)
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}
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defer db.Close()
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inst := &instance{db: db}
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columns := []string{
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"datid",
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"datname",
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"numbackends",
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"xact_commit",
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"xact_rollback",
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"blks_read",
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"blks_hit",
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"tup_returned",
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"tup_fetched",
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"tup_inserted",
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"tup_updated",
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"tup_deleted",
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"conflicts",
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"temp_files",
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"temp_bytes",
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"deadlocks",
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"blk_read_time",
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"blk_write_time",
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"stats_reset",
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}
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srT, err := time.Parse("2006-01-02 15:04:05.00000-07", "2023-05-25 17:10:42.81132-07")
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if err != nil {
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t.Fatalf("Error parsing time: %s", err)
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}
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rows := sqlmock.NewRows(columns).
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AddRow(
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"pid",
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"postgres",
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354,
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4945,
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289097744,
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1242257,
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int64(3275602074),
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89320867,
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450139,
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2034563757,
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0,
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int64(2725688749),
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23,
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52,
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74,
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925,
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16,
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823,
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srT).
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AddRow(
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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|
nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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nil,
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).
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AddRow(
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"pid",
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"postgres",
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355,
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4946,
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289097745,
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1242258,
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int64(3275602075),
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89320868,
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450140,
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2034563758,
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1,
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int64(2725688750),
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24,
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53,
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75,
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926,
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17,
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824,
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srT)
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mock.ExpectQuery(sanitizeQuery(statDatabaseQuery)).WillReturnRows(rows)
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ch := make(chan prometheus.Metric)
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go func() {
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defer close(ch)
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c := PGStatDatabaseCollector{
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log: log.With(log.NewNopLogger(), "collector", "pg_stat_database"),
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}
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if err := c.Update(context.Background(), inst, ch); err != nil {
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t.Errorf("Error calling PGStatDatabaseCollector.Update: %s", err)
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}
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}()
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expected := []MetricResult{
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_GAUGE, value: 354},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 4945},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 289097744},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1242257},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 3275602074},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 89320867},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 450139},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2034563757},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 0},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2725688749},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 23},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 52},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 74},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 925},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 16},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 823},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1685059842},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_GAUGE, value: 355},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 4946},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 289097745},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1242258},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 3275602075},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 89320868},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 450140},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2034563758},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2725688750},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 24},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 53},
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|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 75},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 926},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 17},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 824},
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{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1685059842},
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}
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|
|
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convey.Convey("Metrics comparison", t, func() {
|
|
for _, expect := range expected {
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|
m := readMetric(<-ch)
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convey.So(expect, convey.ShouldResemble, m)
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}
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})
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|
if err := mock.ExpectationsWereMet(); err != nil {
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t.Errorf("there were unfulfilled exceptions: %s", err)
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}
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}
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|
|
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func TestPGStatDatabaseCollectorTestNilStatReset(t *testing.T) {
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db, mock, err := sqlmock.New()
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|
if err != nil {
|
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t.Fatalf("Error opening a stub db connection: %s", err)
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}
|
|
defer db.Close()
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|
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inst := &instance{db: db}
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|
|
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columns := []string{
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"datid",
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"datname",
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"numbackends",
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"xact_commit",
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|
"xact_rollback",
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|
"blks_read",
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|
"blks_hit",
|
|
"tup_returned",
|
|
"tup_fetched",
|
|
"tup_inserted",
|
|
"tup_updated",
|
|
"tup_deleted",
|
|
"conflicts",
|
|
"temp_files",
|
|
"temp_bytes",
|
|
"deadlocks",
|
|
"blk_read_time",
|
|
"blk_write_time",
|
|
"stats_reset",
|
|
}
|
|
|
|
rows := sqlmock.NewRows(columns).
|
|
AddRow(
|
|
"pid",
|
|
"postgres",
|
|
354,
|
|
4945,
|
|
289097744,
|
|
1242257,
|
|
int64(3275602074),
|
|
89320867,
|
|
450139,
|
|
2034563757,
|
|
0,
|
|
int64(2725688749),
|
|
23,
|
|
52,
|
|
74,
|
|
925,
|
|
16,
|
|
823,
|
|
nil)
|
|
|
|
mock.ExpectQuery(sanitizeQuery(statDatabaseQuery)).WillReturnRows(rows)
|
|
|
|
ch := make(chan prometheus.Metric)
|
|
go func() {
|
|
defer close(ch)
|
|
c := PGStatDatabaseCollector{
|
|
log: log.With(log.NewNopLogger(), "collector", "pg_stat_database"),
|
|
}
|
|
|
|
if err := c.Update(context.Background(), inst, ch); err != nil {
|
|
t.Errorf("Error calling PGStatDatabaseCollector.Update: %s", err)
|
|
}
|
|
}()
|
|
|
|
expected := []MetricResult{
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_GAUGE, value: 354},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 4945},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 289097744},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 1242257},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 3275602074},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 89320867},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 450139},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2034563757},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 0},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 2725688749},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 23},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 52},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 74},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 925},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 16},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 823},
|
|
{labels: labelMap{"datid": "pid", "datname": "postgres"}, metricType: dto.MetricType_COUNTER, value: 0},
|
|
}
|
|
|
|
convey.Convey("Metrics comparison", t, func() {
|
|
for _, expect := range expected {
|
|
m := readMetric(<-ch)
|
|
convey.So(expect, convey.ShouldResemble, m)
|
|
}
|
|
})
|
|
if err := mock.ExpectationsWereMet(); err != nil {
|
|
t.Errorf("there were unfulfilled exceptions: %s", err)
|
|
}
|
|
}
|