[MM-13833] Configured unit tests to log through t.Log (#10272)

* Rerouted the unit test logs through t.Log

* resolving merge confilvts

* Update testing.go

* Update helper_test.go

* Added godocs for NewTestingLogger

* Added go docs for NewTestingLogger

* Resolving conflicts

app/web_hub_test.go

@@ -47,7 +47,7 @@ func registerDummyWebConn(t *testing.T, a *App, addr net.Addr, userId string) *W
 }
 
 func TestHubStopWithMultipleConnections(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	s := httptest.NewServer(http.HandlerFunc(dummyWebsocketHandler(t)))
@@ -65,7 +65,7 @@ func TestHubStopWithMultipleConnections(t *testing.T) {
 // TestHubStopRaceCondition verifies that attempts to use the hub after it has shutdown does not
 // block the caller indefinitely.
 func TestHubStopRaceCondition(t *testing.T) {
-	th := Setup().InitBasic()
+	th := Setup(t).InitBasic()
 	defer th.TearDown()
 
 	s := httptest.NewServer(http.HandlerFunc(dummyWebsocketHandler(t)))