chore: fix some function names in comment (#4131)

Signed-off-by: yangquanshi <yangquan@52it.net>

context_test.go

@@ -1142,7 +1142,7 @@ func TestContextRenderNoContentXML(t *testing.T) {
 	assert.Equal(t, "application/xml; charset=utf-8", w.Header().Get("Content-Type"))
 }
 
-// TestContextString tests that the response is returned
+// TestContextRenderString tests that the response is returned
 // with Content-Type set to text/plain
 func TestContextRenderString(t *testing.T) {
 	w := httptest.NewRecorder()
@@ -1167,7 +1167,7 @@ func TestContextRenderNoContentString(t *testing.T) {
 	assert.Equal(t, "text/plain; charset=utf-8", w.Header().Get("Content-Type"))
 }
 
-// TestContextString tests that the response is returned
+// TestContextRenderHTMLString tests that the response is returned
 // with Content-Type set to text/html
 func TestContextRenderHTMLString(t *testing.T) {
 	w := httptest.NewRecorder()

middleware_test.go

@@ -203,7 +203,7 @@ func TestMiddlewareAbortHandlersChainAndNext(t *testing.T) {
 	assert.Equal(t, "ACB", signature)
 }
 
-// TestFailHandlersChain - ensure that Fail interrupt used middleware in fifo order as
+// TestMiddlewareFailHandlersChain - ensure that Fail interrupt used middleware in fifo order as
 // as well as Abort
 func TestMiddlewareFailHandlersChain(t *testing.T) {
 	// SETUP