Fix some tests (#3100)

* Sleep for one millisecond in the handler because the `Latency` will return `0s` sometimes and the test will fail

* The `TCPListener.File` is not supported by windows, it is unimplemented now

* Remove the `LF` in the `testdata/template/raw.tmpl`, because if set the git config `core.autocrlf=true`, will append `CR` to the raw.tmpl automatically, then test is failed on Windows

logger_test.go

@@ -208,6 +208,7 @@ func TestLoggerWithConfigFormatting(t *testing.T) {
 		// set dummy ClientIP
 		c.Request.Header.Set("X-Forwarded-For", "20.20.20.20")
 		gotKeys = c.Keys
+		time.Sleep(time.Millisecond)
 	})
 	PerformRequest(router, "GET", "/example?a=100")