go/src/runtime/nbpipe_test.go

func TestNonblockingPipe(t *testing.T) { … }

func checkIsPipe(t *testing.T, r, w int32) { … }

func checkNonblocking(t *testing.T, fd int32, name string) { … }

func checkCloseonexec(t *testing.T, fd int32, name string) { … }