Safely handle uninitialized load_timing info in ResourceResponseHead.

content/common/resource_dispatcher_unittest.cc

 // Copyright (c) 2012 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 <string>
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/process.h"
@@ skipping 325 matching lines @@
   ResourceLoaderBridge* bridge = CreateBridge();
 
   bridge->Start(this);
   InitMessages();
 
   // Dispatch deferred messages.
   message_loop.RunAllPending();
   delete bridge;
 }
 
+class TimeConversionTest : public ResourceDispatcherTest,
+                           public ResourceLoaderBridge::Peer {
+ public:
+  virtual bool Send(IPC::Message* msg) {
+    delete msg;
+    return true;
+  }
+
+  void PerformTest(const ResourceResponseHead& response_head) {
+    scoped_ptr<ResourceLoaderBridge> bridge(CreateBridge());
+    bridge->Start(this);
+
+    IPC::Message* response_message =

[darin (slow to review), 2012/08/02 04:53:15]

nit: no need to heap allocate the IPC message :)

[James Simonsen, 2012/08/02 19:02:58]

Done.

+        new ResourceMsg_ReceivedResponse(0, 0, response_head);
+
+    dispatcher_->OnMessageReceived(*response_message);
+
+    delete response_message;
+  }
+
+  // ResourceLoaderBridge::Peer methods.
+  virtual void OnUploadProgress(uint64 position, uint64 size) {
+  }

[darin (slow to review), 2012/08/02 04:53:15]

nit: do these need OVERRIDE?

[James Simonsen, 2012/08/02 19:02:58]

Done.

+
+  virtual bool OnReceivedRedirect(
+      const GURL& new_url,
+      const ResourceResponseInfo& info,
+      bool* has_new_first_party_for_cookies,
+      GURL* new_first_party_for_cookies) {
+    return true;
+  }
+
+  virtual void OnReceivedResponse(const ResourceResponseInfo& info) {
+    response_info_ = info;
+  }
+
+  virtual void OnDownloadedData(int len) {
+  }
+
+  virtual void OnReceivedData(const char* data,
+                              int data_length,
+                              int encoded_data_length) {
+  }
+
+  virtual void OnCompletedRequest(const net::URLRequestStatus& status,
+                                  const std::string& security_info,
+                                  const base::TimeTicks& completion_time) {
+  }
+
+  const ResourceResponseInfo& response_info() const { return response_info_; }
+
+ private:
+  ResourceResponseInfo response_info_;
+};
+
+TEST_F(TimeConversionTest, ProperlyInitialized) {
+  ResourceResponseHead response_head;
+  response_head.status.set_status(net::URLRequestStatus::SUCCESS);
+  response_head.request_start = base::TimeTicks::FromInternalValue(5);
+  response_head.response_start = base::TimeTicks::FromInternalValue(15);
+  response_head.load_timing.base_time = base::Time::Now();
+  response_head.load_timing.base_ticks = base::TimeTicks::FromInternalValue(10);
+  response_head.load_timing.dns_start = -1;
+  response_head.load_timing.connect_start = 3;
+
+  PerformTest(response_head);
+
+  EXPECT_LT(0, response_info().load_timing.base_ticks.ToInternalValue());
+  EXPECT_EQ(-1, response_info().load_timing.dns_start);
+  EXPECT_LE(0, response_info().load_timing.connect_start);
+}
+
+TEST_F(TimeConversionTest, PartiallyInitialized) {
+  ResourceResponseHead response_head;
+  response_head.status.set_status(net::URLRequestStatus::SUCCESS);
+  response_head.request_start = base::TimeTicks::FromInternalValue(5);
+  response_head.response_start = base::TimeTicks::FromInternalValue(15);
+
+  PerformTest(response_head);
+
+  EXPECT_EQ(0, response_info().load_timing.base_ticks.ToInternalValue());
+  EXPECT_EQ(-1, response_info().load_timing.dns_start);
+}
+
+TEST_F(TimeConversionTest, NotInitialized) {
+  ResourceResponseHead response_head;
+  response_head.status.set_status(net::URLRequestStatus::SUCCESS);
+
+  PerformTest(response_head);
+
+  EXPECT_EQ(0, response_info().load_timing.base_ticks.ToInternalValue());
+  EXPECT_EQ(-1, response_info().load_timing.dns_start);
+}
+
 }  // namespace content