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https://github.com/prometheus-community/windows_exporter.git
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Jan-Otto KröpkeandClaude Opus 5.5
1302cf6899
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
91 lines
2.7 KiB
Go
91 lines
2.7 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 mscluster
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import (
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"context"
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"errors"
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"strings"
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"testing"
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"time"
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"github.com/prometheus-community/windows_exporter/internal/headers/clusapi"
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"github.com/prometheus/client_golang/prometheus"
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)
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// A ClusAPI RPC that hangs (for example in a resource DLL until its deadlock
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// timeout) must not hold Collect: the other sub-collectors publish, Collect
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// returns at the budget, and Close does not wait for the stuck read.
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func TestCollectDoesNotWaitForStuckSource(t *testing.T) {
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stuck := &resourceFixtureSource{started: make(chan struct{}), release: make(chan struct{})}
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defer close(stuck.release)
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networks := &objectFixtureSource{objects: []clusapi.Object{networkFixture("Cluster Network 1")}}
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c := New(&Config{CollectorsEnabled: []string{subCollectorNetwork, subCollectorResource}})
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c.resourceSource, c.networkSource = stuck, networks
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c.buildResourceDescriptors()
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c.buildNetworkDescriptors()
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ch := make(chan prometheus.Metric, 100)
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start := time.Now()
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err := c.Collect(ch, 50*time.Millisecond)
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if !errors.Is(err, context.DeadlineExceeded) {
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t.Fatalf("stuck resource read: %v", err)
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}
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if elapsed := time.Since(start); elapsed > 5*time.Second {
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t.Fatalf("Collect waited %s for the stuck read", elapsed)
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}
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close(ch)
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published := 0
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for range ch {
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published++
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}
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if published == 0 {
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t.Fatal("network metrics were not published")
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}
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closeDone := make(chan error, 1)
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go func() { closeDone <- c.Close() }()
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select {
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case err := <-closeDone:
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if err != nil {
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t.Fatal(err)
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}
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case <-time.After(5 * time.Second):
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t.Fatal("Close waited for the stuck read")
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}
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}
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// Library consumers may call Collect after a failed Build.
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func TestCollectWithoutSources(t *testing.T) {
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c := New(&Config{CollectorsEnabled: []string{subCollectorCluster, subCollectorNetwork, subCollectorNode, subCollectorResource, subCollectorResourceGroup, subCollectorSharedVolumes}})
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err := c.Collect(make(chan prometheus.Metric, 10), time.Second)
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if err == nil || !strings.Contains(err.Error(), "not built") {
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t.Fatalf("Collect without sources: %v", err)
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}
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}
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