gotools/godoc/godoc17_test.go

// Verify that scanIdentifier isn't quadratic.
// This doesn't actually measure and fail on its own, but it was previously
// very obvious when running by hand.
//
// TODO: if there's a reliable and non-flaky way to test this, do so.
// Maybe count user CPU time instead of wall time? But that's not easy
// to do portably in Go.
func TestStructField(t *testing.T) { … }