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// Copyright (c) 2006-2008 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 "base/logging.h"
#include "chrome/browser/command_updater.h"
#include "testing/gtest/include/gtest/gtest.h"
class TestingCommandHandlerMock
: public CommandUpdater::CommandUpdaterDelegate {
public:
virtual void ExecuteCommand(int id) {
EXPECT_EQ(1, id);
}
};
class CommandUpdaterTest : public testing::Test {
};
class TestingCommandObserverMock : public CommandUpdater::CommandObserver {
public:
virtual void EnabledStateChangedForCommand(int id, bool enabled) {
enabled_ = enabled;
}
bool enabled() const { return enabled_; }
private:
bool enabled_;
};
TEST_F(CommandUpdaterTest, TestBasicAPI) {
TestingCommandHandlerMock handler;
CommandUpdater command_updater(&handler);
// Unsupported command
EXPECT_FALSE(command_updater.SupportsCommand(0));
EXPECT_FALSE(command_updater.IsCommandEnabled(0));
// TestingCommandHandlerMock::ExecuteCommand should not be called, since
// the command is not supported.
command_updater.ExecuteCommand(0);
// Supported, enabled command
command_updater.UpdateCommandEnabled(1, true);
EXPECT_TRUE(command_updater.SupportsCommand(1));
EXPECT_TRUE(command_updater.IsCommandEnabled(1));
command_updater.ExecuteCommand(1);
// Supported, disabled command
command_updater.UpdateCommandEnabled(2, false);
EXPECT_TRUE(command_updater.SupportsCommand(2));
EXPECT_FALSE(command_updater.IsCommandEnabled(2));
// TestingCommandHandlerMock::ExecuteCommmand should not be called, since
// the command_updater is disabled
command_updater.ExecuteCommand(2);
}
TEST_F(CommandUpdaterTest, TestObservers) {
TestingCommandHandlerMock handler;
CommandUpdater command_updater(&handler);
// Create an observer for the command 2 and add it to the controller, then
// update the command.
TestingCommandObserverMock observer;
command_updater.AddCommandObserver(2, &observer);
command_updater.UpdateCommandEnabled(2, true);
EXPECT_TRUE(observer.enabled());
command_updater.UpdateCommandEnabled(2, false);
EXPECT_FALSE(observer.enabled());
// Remove the observer and update the command.
command_updater.RemoveCommandObserver(2, &observer);
command_updater.UpdateCommandEnabled(2, true);
EXPECT_FALSE(observer.enabled());
}
TEST_F(CommandUpdaterTest, TestRemoveObserverForUnsupportedCommand) {
TestingCommandHandlerMock handler;
CommandUpdater command_updater(&handler);
// Test removing observers for commands that are unsupported
TestingCommandObserverMock observer;
command_updater.RemoveCommandObserver(3, &observer);
}
TEST_F(CommandUpdaterTest, TestAddingNullObserver) {
TestingCommandHandlerMock handler;
CommandUpdater command_updater(&handler);
// Test adding/removing NULL observers
command_updater.AddCommandObserver(4, NULL);
}
TEST_F(CommandUpdaterTest, TestRemovingNullObserver) {
TestingCommandHandlerMock handler;
CommandUpdater command_updater(&handler);
command_updater.RemoveCommandObserver(4, NULL);
}
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