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test(workqueue): deflake TestMetrics

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Signed-off-by: knight42 <anonymousknight96@gmail.com>

Kubernetes-commit: b70e1d836c2d438af6b01fd297677b900b364a33
This commit is contained in:
knight42
2020-09-05 18:50:45 +08:00
committed by Kubernetes Publisher
parent ebfbb6a14e
commit f2963a02f6
1 changed files with 4 additions and 0 deletions
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4
util/workqueue/metrics_test.go
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@@ -252,13 +252,17 @@ func TestMetrics(t *testing.T) {
// use a channel to ensure we don't look at the metric before it's // use a channel to ensure we don't look at the metric before it's
// been set. // been set.
ch := make(chan struct{}, 1) ch := make(chan struct{}, 1)
longestCh := make(chan struct{}, 1)
mp.unfinished.notifyCh = ch mp.unfinished.notifyCh = ch
mp.longest.notifyCh = longestCh
c.Step(time.Millisecond) c.Step(time.Millisecond)
<-ch <-ch
mp.unfinished.notifyCh = nil mp.unfinished.notifyCh = nil
if e, a := .001, mp.unfinished.gaugeValue(); e != a { if e, a := .001, mp.unfinished.gaugeValue(); e != a {
t.Errorf("expected %v, got %v", e, a) t.Errorf("expected %v, got %v", e, a)
} }
<-longestCh
mp.longest.notifyCh = nil
if e, a := .001, mp.longest.gaugeValue(); e != a { if e, a := .001, mp.longest.gaugeValue(); e != a {
t.Errorf("expected %v, got %v", e, a) t.Errorf("expected %v, got %v", e, a)
} }