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/*
* Copyright © Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "src/server/scene/basic_text_input_hub.h"
#include "mir/test/fake_shared.h"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
using namespace testing;
namespace ms = mir::scene;
namespace mt = mir::test;
struct MockStateObserver : ms::TextInputStateObserver
{
MOCK_METHOD3(activated, void(ms::TextInputStateSerial, bool, ms::TextInputState const&));
MOCK_METHOD0(deactivated, void());
MOCK_METHOD0(show_input_panel, void());
MOCK_METHOD0(hide_input_panel, void());
};
struct MockChangeHandler : ms::TextInputChangeHandler
{
MOCK_METHOD1(text_changed, void(ms::TextInputChange const&));
};
struct BasicTextInputHubTest : Test
{
ms::BasicTextInputHub hub;
StrictMock<MockStateObserver> state_observer;
std::shared_ptr<MockStateObserver> state_observer_ptr = mt::fake_shared(state_observer);
StrictMock<MockChangeHandler> change_handler;
std::shared_ptr<MockChangeHandler> change_handler_ptr = mt::fake_shared(change_handler);
ms::TextInputState state;
ms::TextInputChange change{{}};
};
TEST_F(BasicTextInputHubTest, gives_different_valid_serial_for_each_state)
{
state.surrounding_text = "a";
auto const serial_1 = hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_THAT(serial_1, Ne(decltype(serial_1){}));
auto const serial_2 = hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_THAT(serial_1, Ne(serial_2));
}
TEST_F(BasicTextInputHubTest, observer_is_deactivated_when_added_with_no_active_state)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
}
TEST_F(BasicTextInputHubTest, observer_is_activated_with_correct_serial)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
ms::TextInputStateSerial activated_serial;
EXPECT_CALL(state_observer, activated(_, _, _))
.WillOnce(SaveArg<0>(&activated_serial));
auto const serial_1 = hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_THAT(activated_serial, Eq(serial_1));
}
TEST_F(BasicTextInputHubTest, observer_is_activated_with_correct_state)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
state.surrounding_text = "a";
ms::TextInputState activated_state;
EXPECT_CALL(state_observer, activated(_, _, _))
.WillOnce(SaveArg<2>(&activated_state));
hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_THAT(activated_state.surrounding_text, Eq(state.surrounding_text));
}
TEST_F(BasicTextInputHubTest, observer_is_activated_when_added_if_hub_has_active_state)
{
hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_CALL(state_observer, activated(_, _, _));
hub.register_interest(state_observer_ptr);
}
TEST_F(BasicTextInputHubTest, observer_is_initially_activated_with_correct_serial)
{
auto const serial_1 = hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_CALL(state_observer, activated(Eq(serial_1), _, _));
hub.register_interest(state_observer_ptr);
}
TEST_F(BasicTextInputHubTest, observer_is_initially_activated_with_correct_state)
{
state.surrounding_text = "a";
hub.set_handler_state(change_handler_ptr, false, state);
ms::TextInputState activated_state;
EXPECT_CALL(state_observer, activated(_, _, _))
.WillOnce(SaveArg<2>(&activated_state));
hub.register_interest(state_observer_ptr);
EXPECT_THAT(activated_state.surrounding_text, Eq(state.surrounding_text));
}
TEST_F(BasicTextInputHubTest, observer_sees_new_input_field_on_handler_change)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
EXPECT_CALL(state_observer, activated(_, true, _));
hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_CALL(state_observer, activated(_, true, _));
MockChangeHandler other_handler;
hub.set_handler_state(mt::fake_shared(other_handler), false, state);
}
TEST_F(BasicTextInputHubTest, observer_sees_new_input_field_when_new_input_field_specified)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
EXPECT_CALL(state_observer, activated(_, true, _));
hub.set_handler_state(change_handler_ptr, true, state);
EXPECT_CALL(state_observer, activated(_, true, _));
hub.set_handler_state(change_handler_ptr, true, state);
}
TEST_F(BasicTextInputHubTest, observer_does_not_see_new_input_field_for_same_handler)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
EXPECT_CALL(state_observer, activated(_, true, _));
hub.set_handler_state(change_handler_ptr, false, state);
EXPECT_CALL(state_observer, activated(_, false, _));
hub.set_handler_state(change_handler_ptr, false, state);
}
TEST_F(BasicTextInputHubTest, handler_sees_change)
{
EXPECT_CALL(state_observer, deactivated());
hub.register_interest(state_observer_ptr);
EXPECT_CALL(state_observer, activated(_, _, _));
auto const serial_1 = hub.set_handler_state(change_handler_ptr, false, state);
ms::TextInputChange actual_change{{}};
EXPECT_CALL(change_handler, text_changed(_))
.WillOnce(SaveArg<0>(&actual_change));
change.serial = serial_1;
change.commit_text = "a";
hub.text_changed(change);
EXPECT_THAT(actual_change.serial, Eq(serial_1));
EXPECT_THAT(actual_change.commit_text, Eq(change.commit_text));
}
TEST_F(BasicTextInputHubTest, handler_does_not_see_previously_sent_change)
{
change.commit_text = "a";
hub.text_changed(change);
EXPECT_CALL(change_handler, text_changed(_))
.Times(0);
hub.set_handler_state(change_handler_ptr, false, state);
}
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