forked from mirror/client_golang
95 lines
2.4 KiB
Go
95 lines
2.4 KiB
Go
// Copyright 2021 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 collectors
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import (
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"database/sql"
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"testing"
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"git.internal/re/client_golang/prometheus"
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)
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func TestDBStatsCollector(t *testing.T) {
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reg := prometheus.NewRegistry()
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{
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db := new(sql.DB)
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if err := reg.Register(NewDBStatsCollector(db, "db_A")); err != nil {
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t.Fatal(err)
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}
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}
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{
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db := new(sql.DB)
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if err := reg.Register(NewDBStatsCollector(db, "db_B")); err != nil {
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t.Fatal(err)
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}
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}
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mfs, err := reg.Gather()
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if err != nil {
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t.Fatal(err)
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}
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names := []string{
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"go_sql_max_open_connections",
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"go_sql_open_connections",
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"go_sql_in_use_connections",
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"go_sql_idle_connections",
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"go_sql_wait_count_total",
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"go_sql_wait_duration_seconds_total",
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"go_sql_max_idle_closed_total",
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"go_sql_max_lifetime_closed_total",
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"go_sql_max_idle_time_closed_total",
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}
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type result struct {
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found bool
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}
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results := make(map[string]result)
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for _, name := range names {
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results[name] = result{found: false}
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}
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for _, mf := range mfs {
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m := mf.GetMetric()
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if len(m) != 2 {
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t.Errorf("expected 2 metrics bug got %d", len(m))
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}
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labelA := m[0].GetLabel()[0]
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if name := labelA.GetName(); name != "db_name" {
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t.Errorf("expected to get label \"db_name\" but got %s", name)
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}
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if value := labelA.GetValue(); value != "db_A" {
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t.Errorf("expected to get value \"db_A\" but got %s", value)
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}
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labelB := m[1].GetLabel()[0]
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if name := labelB.GetName(); name != "db_name" {
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t.Errorf("expected to get label \"db_name\" but got %s", name)
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}
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if value := labelB.GetValue(); value != "db_B" {
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t.Errorf("expected to get value \"db_B\" but got %s", value)
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}
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for _, name := range names {
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if name == mf.GetName() {
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results[name] = result{found: true}
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break
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}
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}
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}
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for name, result := range results {
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if !result.found {
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t.Errorf("%s not found", name)
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}
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}
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}
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