mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-10-07 05:09:05 +02:00
118 lines
3.2 KiB
Go
118 lines
3.2 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 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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//go:build windows
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package collector_test
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import (
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"errors"
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"log/slog"
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"testing"
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"time"
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"github.com/alecthomas/kingpin/v2"
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"github.com/prometheus-community/windows_exporter/internal/mi"
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"github.com/prometheus-community/windows_exporter/internal/pdh"
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"github.com/prometheus-community/windows_exporter/pkg/collector"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/stretchr/testify/require"
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)
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func TestCollectionConstructors(t *testing.T) {
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t.Parallel()
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t.Run("config includes every collector", func(t *testing.T) {
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t.Parallel()
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collection := collector.NewWithConfig(collector.Config{})
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_, err := collection.NewHandler(time.Second, slog.New(slog.DiscardHandler), collector.Available())
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require.NoError(t, err)
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})
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t.Run("flags include every collector", func(t *testing.T) {
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t.Parallel()
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app := kingpin.New("test", "test")
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collection := collector.NewWithFlags(app)
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_, err := app.Parse(nil)
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require.NoError(t, err)
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_, err = collection.NewHandler(time.Second, slog.New(slog.DiscardHandler), collector.Available())
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require.NoError(t, err)
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})
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}
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func TestCollectionBuildAndClose(t *testing.T) {
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t.Parallel()
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buildFailure := errors.New("build failed")
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closeFailure := errors.New("close failed")
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for _, tc := range []struct {
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name string
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buildErr error
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closeErr error
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wantBuildErr error
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}{
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{name: "success"},
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{name: "build failure", buildErr: buildFailure, wantBuildErr: buildFailure},
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{name: "optional counter missing", buildErr: pdh.ErrNoData},
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{name: "close failure", closeErr: closeFailure},
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} {
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t.Run(tc.name, func(t *testing.T) {
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t.Parallel()
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test := &lifecycleCollector{name: "test", buildErr: tc.buildErr, closeErr: tc.closeErr}
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collection := collector.New(collector.Map{"test": test})
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err := collection.Build(t.Context(), slog.New(slog.DiscardHandler))
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t.Cleanup(func() {
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err := collection.Close()
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if tc.closeErr != nil {
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require.ErrorIs(t, err, tc.closeErr)
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} else {
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require.NoError(t, err)
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}
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require.True(t, test.closed)
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})
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if tc.wantBuildErr != nil {
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require.ErrorIs(t, err, tc.wantBuildErr)
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} else {
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require.NoError(t, err)
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}
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})
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}
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}
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type lifecycleCollector struct {
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name string
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buildErr error
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closeErr error
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closed bool
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}
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func (c *lifecycleCollector) GetName() string { return c.name }
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func (c *lifecycleCollector) Build(_ *slog.Logger, _ *mi.Session) error { return c.buildErr }
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func (c *lifecycleCollector) Collect(_ chan<- prometheus.Metric, _ time.Duration) error { return nil }
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func (c *lifecycleCollector) Close() error {
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c.closed = true
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return c.closeErr
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}
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