Timeout mw: fix datarace in tests when we are getting data from buffe…

…r. Run each test in their own server so multiple tests cases will not cause datarace getting data out of logger buffer.

middleware/timeout_test.go

@@ -362,40 +362,38 @@ func TestTimeoutWithFullEchoStack(t *testing.T) {
 		},
 	}
 
-	e := echo.New()
-
-	buf := new(bytes.Buffer)
-	e.Logger.SetOutput(buf)
-
-	// NOTE: timeout middleware is first as it changes Response.Writer and causes data race for logger middleware if it is not first
-	// FIXME: I have no idea how to fix this without adding mutexes.
-	e.Use(TimeoutWithConfig(TimeoutConfig{
-		Timeout: 15 * time.Millisecond,
-	}))
-	e.Use(Logger())
-	e.Use(Recover())
-
-	e.GET("/", func(c echo.Context) error {
-		var delay time.Duration
-		if err := echo.QueryParamsBinder(c).Duration("delay", &delay).BindError(); err != nil {
-			return err
-		}
-		if delay > 0 {
-			time.Sleep(delay)
-		}
-		return c.JSON(http.StatusTeapot, map[string]string{"message": "OK"})
-	})
-
-	server, addr, err := startServer(e)
-	if err != nil {
-		assert.NoError(t, err)
-		return
-	}
-	defer server.Close()
-
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
-			buf.Reset() // this is design this can not be run in parallel
+			e := echo.New()
+
+			buf := new(bytes.Buffer)
+			e.Logger.SetOutput(buf)
+
+			// NOTE: timeout middleware is first as it changes Response.Writer and causes data race for logger middleware if it is not first
+			// FIXME: I have no idea how to fix this without adding mutexes.
+			e.Use(TimeoutWithConfig(TimeoutConfig{
+				Timeout: 15 * time.Millisecond,
+			}))
+			e.Use(Logger())
+			e.Use(Recover())
+
+			e.GET("/", func(c echo.Context) error {
+				var delay time.Duration
+				if err := echo.QueryParamsBinder(c).Duration("delay", &delay).BindError(); err != nil {
+					return err
+				}
+				if delay > 0 {
+					time.Sleep(delay)
+				}
+				return c.JSON(http.StatusTeapot, map[string]string{"message": "OK"})
+			})
+
+			server, addr, err := startServer(e)
+			if err != nil {
+				assert.NoError(t, err)
+				return
+			}
+			defer server.Close()
 
 			res, err := http.Get(fmt.Sprintf("http://%v%v", addr, tc.whenPath))
 			if err != nil {