diff --git a/cmd/formatter/colors.go b/cmd/formatter/colors.go index 79afb5354d..5dc336148c 100644 --- a/cmd/formatter/colors.go +++ b/cmd/formatter/colors.go @@ -92,8 +92,14 @@ func rainbowColor() colorFunc { } var loop = make(chan colorFunc) +var quitChan = make(chan bool) + +func cleanInfiniteGoroutine() { + quitChan <- true +} func init() { + defer cleanInfiniteGoroutine() colors := map[string]colorFunc{} for i, name := range names { colors[name] = makeColorFunc(strconv.Itoa(30 + i)) @@ -116,8 +122,14 @@ func init() { } for { - loop <- rainbow[i] - i = (i + 1) % len(rainbow) + select { + case <-quitChan: + return + default: + loop <- rainbow[i] + i = (i + 1) % len(rainbow) + } } }() + } diff --git a/cmd/formatter/formatter_test.go b/cmd/formatter/formatter_test.go index 052226e656..c672ade8ee 100644 --- a/cmd/formatter/formatter_test.go +++ b/cmd/formatter/formatter_test.go @@ -22,6 +22,7 @@ import ( "io" "testing" + "go.uber.org/goleak" "gotest.tools/v3/assert" ) @@ -71,3 +72,8 @@ func TestPrint(t *testing.T) { {"Name":"myName2","Status":"myStatus2"} `) } + +// Test the absence of unexpected goroutines. +func TestColorsGoroutinesLeak(t *testing.T) { + goleak.VerifyNone(t) +} diff --git a/go.mod b/go.mod index 47e1a9e0b2..de537124c3 100644 --- a/go.mod +++ b/go.mod @@ -150,6 +150,8 @@ require ( sigs.k8s.io/yaml v1.2.0 // indirect ) +require go.uber.org/goleak v1.1.12 + replace ( // Override for e2e tests github.com/cucumber/godog => github.com/laurazard/godog v0.0.0-20220922095256-4c4b17abdae7 diff --git a/go.sum b/go.sum index da0b87b2eb..b10e133826 100644 --- a/go.sum +++ b/go.sum @@ -770,6 +770,7 @@ golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHl golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs= golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= +golang.org/x/lint v0.0.0-20200302205851-738671d3881b h1:Wh+f8QHJXR411sJR8/vRBTZ7YapZaRvUcLFFJhusH0k= golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE= golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o= @@ -978,6 +979,7 @@ golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4f golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0= golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk= golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk= +golang.org/x/tools v0.1.12 h1:VveCTK38A2rkS8ZqFY25HIDFscX5X9OoEhJd3quQmXU= golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=