[Mojo-Loading] OnStartLoadingResponseBody should be called after OnReceiveResponse

content/browser/loader/test_url_loader_client.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/loader/test_url_loader_client.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 TestURLLoaderClient::TestURLLoaderClient() : binding_(this) {}
 TestURLLoaderClient::~TestURLLoaderClient() {}
 
 void TestURLLoaderClient::OnReceiveResponse(
     const ResourceResponseHead& response_head,
     mojom::DownloadedTempFilePtr downloaded_file) {
+  EXPECT_FALSE(has_received_response_);
+  EXPECT_FALSE(has_received_cached_metadata_);
+  EXPECT_FALSE(has_received_completion_);
   has_received_response_ = true;
   response_head_ = response_head;
   if (quit_closure_for_on_receive_response_)
     quit_closure_for_on_receive_response_.Run();
 }
 
 void TestURLLoaderClient::OnReceiveRedirect(
     const net::RedirectInfo& redirect_info,
     const ResourceResponseHead& response_head) {
+  EXPECT_FALSE(has_received_cached_metadata_);
   EXPECT_FALSE(response_body_.is_valid());
   EXPECT_FALSE(has_received_response_);
   // Use ClearHasReceivedRedirect to accept more redirects.
   EXPECT_FALSE(has_received_redirect_);
+  EXPECT_FALSE(has_received_completion_);
   has_received_redirect_ = true;
   redirect_info_ = redirect_info;
   response_head_ = response_head;
   if (quit_closure_for_on_receive_redirect_)
     quit_closure_for_on_receive_redirect_.Run();
 }
 
 void TestURLLoaderClient::OnDataDownloaded(int64_t data_length,
                                            int64_t encoded_data_length) {
+  EXPECT_TRUE(has_received_response_);
+  EXPECT_FALSE(has_received_completion_);
   has_data_downloaded_ = true;
   download_data_length_ += data_length;
   encoded_download_data_length_ += encoded_data_length;
   if (quit_closure_for_on_data_downloaded_)
     quit_closure_for_on_data_downloaded_.Run();
 }
 
 void TestURLLoaderClient::OnReceiveCachedMetadata(
     const std::vector<uint8_t>& data) {
   EXPECT_FALSE(has_received_cached_metadata_);
   EXPECT_TRUE(has_received_response_);
   EXPECT_FALSE(has_received_completion_);
   has_received_cached_metadata_ = true;
   cached_metadata_ =
       std::string(reinterpret_cast<const char*>(data.data()), data.size());
   if (quit_closure_for_on_receive_cached_metadata_)
     quit_closure_for_on_receive_cached_metadata_.Run();
 }
 
 void TestURLLoaderClient::OnTransferSizeUpdated(int32_t transfer_size_diff) {
+  EXPECT_TRUE(has_received_response_);
+  EXPECT_FALSE(has_received_completion_);
   EXPECT_GT(transfer_size_diff, 0);
   body_transfer_size_ += transfer_size_diff;
 }
 
 void TestURLLoaderClient::OnStartLoadingResponseBody(
     mojo::ScopedDataPipeConsumerHandle body) {
+  EXPECT_TRUE(has_received_response_);
+  EXPECT_FALSE(has_received_completion_);
   response_body_ = std::move(body);
   if (quit_closure_for_on_start_loading_response_body_)
     quit_closure_for_on_start_loading_response_body_.Run();
 }
 
 void TestURLLoaderClient::OnComplete(
     const ResourceRequestCompletionStatus& status) {
+  EXPECT_FALSE(has_received_completion_);
   has_received_completion_ = true;
   completion_status_ = status;
   if (quit_closure_for_on_complete_)
     quit_closure_for_on_complete_.Run();
 }
 
 void TestURLLoaderClient::ClearHasReceivedRedirect() {
   has_received_redirect_ = false;
 }
 
@@ skipping 58 matching lines @@
 void TestURLLoaderClient::RunUntilComplete() {
   if (has_received_completion_)
     return;
   base::RunLoop run_loop;
   quit_closure_for_on_complete_ = run_loop.QuitClosure();
   run_loop.Run();
   quit_closure_for_on_complete_.Reset();
 }
 
 }  // namespace content