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Jan-Otto KröpkeandClaude Opus 5.5
70478e9cbd
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
73 lines
2.6 KiB
Go
73 lines
2.6 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 printer_test
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import (
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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/collector/printer"
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"github.com/prometheus-community/windows_exporter/internal/mi"
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"github.com/prometheus-community/windows_exporter/internal/utils/testutils"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func BenchmarkCollector(b *testing.B) {
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// Whitelist is not set in testing context (kingpin flags not parsed), causing the collector to skip all printers.
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printersInclude := ".+"
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testutils.FuncBenchmarkCollector(b, "printer", printer.NewWithFlags, func(app *kingpin.Application) {
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app.GetFlag("collector.printer.include").StringVar(&printersInclude)
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})
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}
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func TestCollector(t *testing.T) {
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metrics := testutils.TestCollector(t, printer.New, nil)
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testutils.RequireFixtureMetric(t, metrics, printer.Name, "windows_printer_job_count", prometheus.Labels{"printer": "CIPrinter"})
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}
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// TestCollectorScrapeTimeout checks that the Win32_Printer query is bounded by the scrape timeout.
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// Win32_Printer can block for close to a minute on an offline IPP printer; without a timeout,
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// that call keeps the collector busy across scrapes.
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func TestCollectorScrapeTimeout(t *testing.T) {
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miApp, err := mi.ApplicationInitialize()
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require.NoError(t, err)
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t.Cleanup(func() { assert.NoError(t, miApp.Close()) })
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miSession, err := miApp.NewSession(nil)
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require.NoError(t, err)
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t.Cleanup(func() { assert.NoError(t, miSession.Close()) })
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c := printer.New(nil)
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t.Cleanup(func() { assert.NoError(t, c.Close()) })
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require.NoError(t, c.Build(slog.New(slog.DiscardHandler), miSession))
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ch := make(chan prometheus.Metric, 1000)
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// 1ms is the smallest timeout MI enforces, and well below the time Win32_Printer needs.
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err = c.Collect(ch, time.Millisecond)
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require.ErrorIs(t, err, mi.MI_RESULT_INVALID_OPERATION_TIMEOUT)
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require.ErrorContains(t, err, "failed to collect printer status metrics")
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}
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