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🐛 Fix race condition in Warmup unit test #3287

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Merged
k8s-ci-robot merged 1 commit into from
Aug 18, 2025
Merged

🐛 Fix race condition in Warmup unit test #3287

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9 changes: 8 additions & 1 deletion pkg/internal/controller/controller_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1403,7 +1403,8 @@ var _ = Describe("controller", func() {
wg.Wait()
})

It("should not cause a data race when called concurrently with Start and only start sources once", func(ctx SpecContext) {
It("should not cause a data race when called concurrently with Start and only start sources once", func(specCtx SpecContext) {
ctx, cancel := context.WithCancel(specCtx)

ctrl.CacheSyncTimeout = time.Second
numWatches := 10
Expand All @@ -1417,9 +1418,11 @@ var _ = Describe("controller", func() {
}

By("calling Warmup and Start concurrently")
blockOnStartChan := make(chan struct{})
go func() {
defer GinkgoRecover()
Expect(ctrl.Start(ctx)).To(Succeed())
close(blockOnStartChan)
}()

blockOnWarmupChan := make(chan struct{})
Expand All @@ -1431,6 +1434,10 @@ var _ = Describe("controller", func() {

<-blockOnWarmupChan

cancel()

<-blockOnStartChan

Expect(watchStartedCount.Load()).To(Equal(int32(numWatches)), "source should only be started once")
Expect(ctrl.startWatches).To(BeNil(), "startWatches should be reset to nil after they are started")
})
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