86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
// Copyright 2021 FerretDB Inc.
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//
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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 state
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import (
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"fmt"
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"strings"
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"testing"
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"github.com/prometheus/client_golang/prometheus/testutil"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/FerretDB/FerretDB/v2/build/version"
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)
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func TestMetrics(t *testing.T) {
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t.Parallel()
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p, err := NewProvider("")
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require.NoError(t, err)
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err = p.Update(func(s *State) {
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s.PostgreSQLVersion = "postgres"
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s.DocumentDBVersion = "documentdb"
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s.EnableTelemetry()
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})
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require.NoError(t, err)
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info := version.Get()
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t.Run("WithUUID", func(t *testing.T) {
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t.Parallel()
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uuid := p.Get().UUID
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mc := p.MetricsCollector(true)
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problems, err := testutil.CollectAndLint(mc)
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require.NoError(t, err)
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require.Empty(t, problems)
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//nolint:lll // it is more readable this way
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expected := fmt.Sprintf(
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`
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# HELP ferretdb_up FerretDB instance state.
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# TYPE ferretdb_up gauge
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ferretdb_up{branch=%q,commit=%q,dev="%t",dirty="%t",documentdb="documentdb",package=%q,postgresql="postgres",telemetry="enabled",update_available="false",uuid=%q,version=%q} 1
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`,
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info.Branch, info.Commit, info.DevBuild, info.Dirty, info.Package, uuid, info.Version,
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)
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assert.NoError(t, testutil.CollectAndCompare(mc, strings.NewReader(expected)))
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})
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t.Run("WithoutUUID", func(t *testing.T) {
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t.Parallel()
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mc := p.MetricsCollector(false)
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problems, err := testutil.CollectAndLint(mc)
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require.NoError(t, err)
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require.Empty(t, problems)
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//nolint:lll // it is more readable this way
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expected := fmt.Sprintf(
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`
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# HELP ferretdb_up FerretDB instance state.
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# TYPE ferretdb_up gauge
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ferretdb_up{branch=%q,commit=%q,dev="%t",dirty="%t",documentdb="documentdb",package=%q,postgresql="postgres",telemetry="enabled",update_available="false",version=%q} 1
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`,
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info.Branch, info.Commit, info.DevBuild, info.Dirty, info.Package, info.Version,
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)
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assert.NoError(t, testutil.CollectAndCompare(mc, strings.NewReader(expected)))
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})
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}
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