Implement CachedMetadata handling on MojoAsyncResourceHandler

content/child/url_loader_client_impl_unittest.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/child/url_loader_client_impl.h"
 
+#include <vector>
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "content/child/resource_dispatcher.h"
 #include "content/child/test_request_peer.h"
 #include "content/common/url_loader_factory.mojom.h"
 #include "ipc/ipc_sender.h"
 #include "mojo/public/cpp/bindings/associated_interface_ptr_info.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "net/url_request/redirect_info.h"
@@ skipping 149 matching lines @@
 
   EXPECT_FALSE(request_peer_context_.received_response);
   EXPECT_EQ(0, request_peer_context_.total_downloaded_data_length);
   EXPECT_EQ(0, request_peer_context_.total_encoded_data_length);
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(request_peer_context_.received_response);
   EXPECT_EQ(10, request_peer_context_.total_downloaded_data_length);
   EXPECT_EQ(14, request_peer_context_.total_encoded_data_length);
 }
 
+TEST_F(URLLoaderClientImplTest, OnReceiveCachedMetadata) {
+  ResourceResponseHead response_head;
+  std::vector<uint8_t> metadata;
+  metadata.push_back('a');
+
+  url_loader_client_->OnReceiveResponse(response_head, nullptr);
+  url_loader_client_->OnReceiveCachedMetadata(metadata);
+
+  EXPECT_FALSE(request_peer_context_.received_response);
+  EXPECT_TRUE(request_peer_context_.cached_metadata.empty());
+  base::RunLoop().RunUntilIdle();
+  EXPECT_TRUE(request_peer_context_.received_response);
+  ASSERT_EQ(1u, request_peer_context_.cached_metadata.size());
+  EXPECT_EQ('a', request_peer_context_.cached_metadata[0]);
+}
+
 TEST_F(URLLoaderClientImplTest, OnTransferSizeUpdated) {
   ResourceResponseHead response_head;
 
   url_loader_client_->OnReceiveResponse(response_head, nullptr);
   url_loader_client_->OnTransferSizeUpdated(4);
   url_loader_client_->OnTransferSizeUpdated(4);
 
   EXPECT_FALSE(request_peer_context_.received_response);
   EXPECT_EQ(0, request_peer_context_.total_encoded_data_length);
   base::RunLoop().RunUntilIdle();
@@ skipping 376 matching lines @@
 
   dispatcher_->SetDefersLoading(request_id_, false);
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(request_peer_context_.received_response);
   EXPECT_TRUE(request_peer_context_.complete);
   EXPECT_EQ(4, request_peer_context_.total_encoded_data_length);
   EXPECT_FALSE(request_peer_context_.cancelled);
 }
 
 }  // namespace content