Fix disabled tests under windows

[mstoykov]

Currently being skipped under windows in appveyor.

[na--]

Maybe this won't be a problem after #959, since the Azure machines may be more powerful than the AppVeyor ones...

In any case, I disabled another test under Windows...

Currently, the list of disabled tests under Windows is:

• TestVURunInterrupt()
• TestTracer()
• TestTracerNegativeHttpSendingValues()
• TestRealTimeAndSetupTeardownMetrics()
• TestRequestAndBatch()

Some of those tests could be fixed by relaxing the time constraints a bit, or in the case of the last one, by splitting up the test into multiple smaller tests...

[ahmedalhulaibi]

I was just looking through this and a lot has changed. Here's an updated list of disabled test under Windows that I found:

• TestRequestAndBatchTLS
• TestMakeRequestDialTimeout

[codebien]

An updated list

k6/js/modules/k6/http/request_test.go

Lines 2196 to 2200 in 1ec6519

	t.Run("ocsp_stapled_good", func(t *testing.T) {
	t.Parallel()
	if runtime.GOOS == "windows" {
	t.Skip("this doesn't work on windows for some reason")
	}

k6/lib/executor/constant_arrival_rate_test.go

Lines 111 to 114 in 1ec6519

	func TestConstantArrivalRateRunCorrectTiming(t *testing.T) {
	if runtime.GOOS == "windows" {
	t.Skipf("this test is very flaky on the Windows GitHub Action runners...")
	}

k6/lib/netext/httpext/request_test.go

Lines 371 to 374 in 1ec6519

	func TestMakeRequestDialTimeout(t *testing.T) {
	if runtime.GOOS == "windows" {
	t.Skipf("dial timeout doesn't get returned on windows") // or we don't match it correctly
	}

Relevant related issue #903