Add a unittest for PasswordAutofillAgent

components/autofill/content/renderer/password_autofill_agent_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 "components/autofill/content/common/autofill_messages.h"
+#include "components/autofill/content/renderer/test_password_autofill_agent.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace autofill {
+
+TEST(PasswordAutofillAgentTest, OnChangeLoggingState) {
+  TestPasswordAutofillAgent agent(NULL);
+  IPC::Listener* const agent_listener(&agent);
+
+  EXPECT_FALSE(agent.logging_state_active());
+
+  AutofillMsg_ChangeLoggingState msg_activate(0, true);
+  EXPECT_TRUE(agent_listener->OnMessageReceived(msg_activate));
+  EXPECT_TRUE(agent.logging_state_active());
+
+  AutofillMsg_ChangeLoggingState msg_deactivate(0, false);
+  EXPECT_TRUE(agent_listener->OnMessageReceived(msg_deactivate));
+  EXPECT_FALSE(agent.logging_state_active());
+}
+
+}  // namespace autofill