telegraf/plugins/inputs/pgbouncer/pgbouncer_test.go

108 lines
3.1 KiB
Go

package pgbouncer
import (
"fmt"
"testing"
"github.com/stretchr/testify/require"
"github.com/testcontainers/testcontainers-go/wait"
"github.com/influxdata/telegraf/plugins/inputs/postgresql"
"github.com/influxdata/telegraf/testutil"
)
func TestPgBouncerGeneratesMetricsIntegration(t *testing.T) {
if testing.Short() {
t.Skip("Skipping integration test in short mode")
}
backend := testutil.Container{
Image: "postgres:alpine",
ExposedPorts: []string{"5432"},
Env: map[string]string{
"POSTGRES_HOST_AUTH_METHOD": "trust",
},
WaitingFor: wait.ForLog("database system is ready to accept connections"),
}
err := backend.Start()
require.NoError(t, err, "failed to start container")
defer func() {
require.NoError(t, backend.Terminate(), "terminating container failed")
}()
container := testutil.Container{
Image: "z9pascal/pgbouncer-container:1.17.0-latest",
ExposedPorts: []string{"6432"},
Env: map[string]string{
"PG_ENV_POSTGRESQL_USER": "pgbouncer",
"PG_ENV_POSTGRESQL_PASS": "pgbouncer",
},
WaitingFor: wait.ForListeningPort("6432"),
}
err = container.Start()
require.NoError(t, err, "failed to start container")
defer func() {
require.NoError(t, container.Terminate(), "terminating container failed")
}()
p := &PgBouncer{
Service: postgresql.Service{
Address: fmt.Sprintf(
"host=%s user=pgbouncer password=pgbouncer dbname=pgbouncer port=%s sslmode=disable",
container.Address,
container.Port,
),
IsPgBouncer: true,
},
}
var acc testutil.Accumulator
require.NoError(t, p.Start(&acc))
require.NoError(t, p.Gather(&acc))
// Return value of pgBouncer
// [pgbouncer map[db:pgbouncer server:host=localhost user=pgbouncer dbname=pgbouncer port=6432 ] map[avg_query_count:0 avg_query_time:0 avg_wait_time:0 avg_xact_count:0 avg_xact_time:0 total_query_count:3 total_query_time:0 total_received:0 total_sent:0 total_wait_time:0 total_xact_count:3 total_xact_time:0] 1620163750039747891 pgbouncer_pools map[db:pgbouncer pool_mode:statement server:host=localhost user=pgbouncer dbname=pgbouncer port=6432 user:pgbouncer] map[cl_active:1 cl_waiting:0 maxwait:0 maxwait_us:0 sv_active:0 sv_idle:0 sv_login:0 sv_tested:0 sv_used:0] 1620163750041444466]
intMetricsPgBouncer := []string{
"total_received",
"total_sent",
"total_query_time",
"avg_query_count",
"avg_query_time",
"avg_wait_time",
}
intMetricsPgBouncerPools := []string{
"cl_active",
"cl_waiting",
"sv_active",
"sv_idle",
"sv_used",
"sv_tested",
"sv_login",
"maxwait",
}
int32Metrics := []string{}
metricsCounted := 0
for _, metric := range intMetricsPgBouncer {
require.True(t, acc.HasInt64Field("pgbouncer", metric))
metricsCounted++
}
for _, metric := range intMetricsPgBouncerPools {
require.True(t, acc.HasInt64Field("pgbouncer_pools", metric))
metricsCounted++
}
for _, metric := range int32Metrics {
require.True(t, acc.HasInt32Field("pgbouncer", metric))
metricsCounted++
}
require.True(t, metricsCounted > 0)
require.Equal(t, len(intMetricsPgBouncer)+len(intMetricsPgBouncerPools)+len(int32Metrics), metricsCounted)
}