Password manager: introduce logging for the internals page

chrome/browser/password_manager/chrome_password_manager_client_unittest.cc

 // Copyright 2014 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 "chrome/browser/password_manager/chrome_password_manager_client.h"
 
 #include "chrome/test/base/chrome_render_view_host_test_harness.h"
+#include "components/autofill/content/common/autofill_messages.h"
 #include "components/password_manager/core/browser/password_manager_logger.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/web_contents.h"
+#include "content/public/test/mock_render_process_host.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserContext;
 using content::WebContents;
 
 namespace {
 
 const char kTestText[] = "abcd1234";
 
 class MockPasswordManagerLogger
     : public password_manager::PasswordManagerLogger {
  public:
   MockPasswordManagerLogger() {}
 
   MOCK_METHOD1(LogSavePasswordProgress, void(const std::string&));
 };
 
 }  // namespace
 
 class ChromePasswordManagerClientTest : public ChromeRenderViewHostTestHarness {
  public:
   virtual void SetUp() OVERRIDE;
 
  protected:
   ChromePasswordManagerClient* GetClient();
 
-  testing::StrictMock<MockPasswordManagerLogger> logger;
+  // If the test IPC sink contains an AutofillMsg_ChangeLoggingState message,
+  // then copies its argument into |activation_flag| and returns true. Otherwise
+  // returns false.
+  bool WasLoggingActivationMessageSent(bool* activation_flag);
+
+  testing::StrictMock<MockPasswordManagerLogger> logger_;
 };
 
 void ChromePasswordManagerClientTest::SetUp() {
   ChromeRenderViewHostTestHarness::SetUp();
   ChromePasswordManagerClient::CreateForWebContents(web_contents());
 }
 
 ChromePasswordManagerClient* ChromePasswordManagerClientTest::GetClient() {
   return ChromePasswordManagerClient::FromWebContents(web_contents());
 }
 
+bool ChromePasswordManagerClientTest::WasLoggingActivationMessageSent(
+    bool* activation_flag) {
+    const uint32 kMsgID = AutofillMsg_ChangeLoggingState::ID;
+    const IPC::Message* message =
+        process()->sink().GetFirstMessageMatching(kMsgID);
+    if (!message)
+      return false;
+    Tuple1<bool> param;
+    AutofillMsg_ChangeLoggingState::Read(message, &param);
+    *activation_flag = param.a;
+    process()->sink().ClearMessages();
+    return true;
+}
+
 TEST_F(ChromePasswordManagerClientTest, LogSavePasswordProgressNoLogger) {
   ChromePasswordManagerClient* client = GetClient();
 
-  EXPECT_CALL(logger, LogSavePasswordProgress(kTestText)).Times(0);
+  EXPECT_CALL(logger_, LogSavePasswordProgress(kTestText)).Times(0);
   // Before attaching the logger, no text should be passed.
   client->LogSavePasswordProgress(kTestText);
   EXPECT_FALSE(client->IsLoggingActive());
 }
 
 TEST_F(ChromePasswordManagerClientTest, LogSavePasswordProgressAttachLogger) {
   ChromePasswordManagerClient* client = GetClient();
 
   // After attaching the logger, text should be passed.
-  client->SetLogger(&logger);
-  EXPECT_CALL(logger, LogSavePasswordProgress(kTestText)).Times(1);
+  client->SetLogger(&logger_);
+  EXPECT_CALL(logger_, LogSavePasswordProgress(kTestText)).Times(1);
   client->LogSavePasswordProgress(kTestText);
   EXPECT_TRUE(client->IsLoggingActive());
 }
 
 TEST_F(ChromePasswordManagerClientTest, LogSavePasswordProgressDetachLogger) {
   ChromePasswordManagerClient* client = GetClient();
 
-  client->SetLogger(&logger);
+  client->SetLogger(&logger_);
   // After detaching the logger, no text should be passed.
   client->SetLogger(NULL);
-  EXPECT_CALL(logger, LogSavePasswordProgress(kTestText)).Times(0);
+  EXPECT_CALL(logger_, LogSavePasswordProgress(kTestText)).Times(0);
   client->LogSavePasswordProgress(kTestText);
   EXPECT_FALSE(client->IsLoggingActive());
 }
+
+TEST_F(ChromePasswordManagerClientTest, LogSavePasswordProgressNotifyRenderer) {
+  ChromePasswordManagerClient* client = GetClient();
+  bool logging_active = false;
+
+  // Initially, the logging should be off, so no IPC messages.
+  EXPECT_FALSE(WasLoggingActivationMessageSent(&logging_active));
+
+  client->SetLogger(&logger_);
+  EXPECT_TRUE(WasLoggingActivationMessageSent(&logging_active));
+  EXPECT_TRUE(logging_active);
+
+  client->SetLogger(NULL);
+  EXPECT_TRUE(WasLoggingActivationMessageSent(&logging_active));
+  EXPECT_FALSE(logging_active);
+}