car-ui-lib/car-ui-lib/src/test/java/com/android/car/ui/toolbar/ToolbarTest.java - platform/packages/apps/Car/libs - Git at Google

 /*
  * Copyright 2019 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.car.ui.toolbar;

 import static com.google.common.truth.Truth.assertThat;

 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.when;

 import android.content.Context;
 import android.content.res.Resources;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewParent;

 import com.android.car.ui.R;

 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.robolectric.Robolectric;
 import org.robolectric.RobolectricTestRunner;
 import org.robolectric.RuntimeEnvironment;
 import org.robolectric.android.controller.ActivityController;
 import org.robolectric.annotation.Config;

 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;

 @RunWith(RobolectricTestRunner.class)
 @Config(shadows = {ExtendedShadowTypeface.class, ShadowAsyncLayoutInflater.class},
         qualifiers = "land")
 public class ToolbarTest {

     private Context mContext;
     private Resources mResources;
     private ActivityController<TestActivity> mActivityController;
     private TestActivity mActivity;
     private Toolbar mToolbar;

     @Before
     public void setUp() {
         mContext = RuntimeEnvironment.application;
         mResources = mContext.getResources();
         mActivityController = Robolectric.buildActivity(TestActivity.class);
         mActivityController.setup();
         mActivity = mActivityController.get();
         mToolbar = mActivity.findViewById(R.id.toolbar);
     }

     private int getTestResourceIdInt(String resource) {
         return mResources.getIdentifier(resource, "id", mContext.getPackageName());
     }

     private int getTestDrawableInt(String drawable) {
         return mResources.getIdentifier(drawable, "drawable", mContext.getPackageName());
     }

     @Test
     public void getters_nochanges_shouldReturnDefaults() {
         assertThat(mToolbar.getBackgroundShown()).isEqualTo(true);
         assertThat(mToolbar.getShowMenuItemsWhileSearching()).isEqualTo(false);
         assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.HOME);
         assertThat(mToolbar.getNavButtonMode()).isEquivalentAccordingToCompareTo(
                 Toolbar.NavButtonMode.BACK);
     }

     @Test
     public void setState_subpage_shouldCauseGetStateToReturnSubpage() {
         mToolbar.setState(Toolbar.State.SUBPAGE);

         assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.SUBPAGE);
     }

     @Test
     public void setters_and_getters_test() {
         mToolbar.setTitle("Foo");
         mToolbar.setSearchHint("Foo2");
         mToolbar.setBackgroundShown(false);
         mToolbar.setShowMenuItemsWhileSearching(true);
         mToolbar.setState(Toolbar.State.SUBPAGE);
         mToolbar.setNavButtonMode(Toolbar.NavButtonMode.CLOSE);

         assertThat(mToolbar.getTitle().toString()).isEqualTo("Foo");
         assertThat(mToolbar.getSearchHint().toString()).isEqualTo("Foo2");
         assertThat(mToolbar.getBackgroundShown()).isEqualTo(false);
         assertThat(mToolbar.getShowMenuItemsWhileSearching()).isEqualTo(true);
         assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.SUBPAGE);
         assertThat(mToolbar.getNavButtonMode()).isEquivalentAccordingToCompareTo(
                 Toolbar.NavButtonMode.CLOSE);
     }

     @Test
     public void showLogo_whenSet_andStateIsHome() {
         mToolbar.setState(Toolbar.State.HOME);
         mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isTrue();
         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
     }

     @Test
     public void hideLogo_andTitleLogo_whenSet_andStateIsHome_andLogoIsDisabled() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_show_logo)).thenReturn(false);

         Toolbar toolbar = new Toolbar(mContext);
         toolbar.setState(Toolbar.State.HOME);
         mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_logo)).isFalse();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title_logo)).isFalse();
     }

     @Test
     public void showTitleLogo_whenSet_andStateIsNotHome() {
         mToolbar.setState(Toolbar.State.SUBPAGE);
         mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isTrue();
     }

     @Test
     public void hideLogo_andTitleLogo_whenNotSet_andStateIsHome() {
         mToolbar.setState(Toolbar.State.HOME);
         mToolbar.setLogo(0);

         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
     }

     @Test
     public void hideLogo_andTitleLogo_whenNotSet_andStateIsNotHome() {
         mToolbar.setState(Toolbar.State.SUBPAGE);
         mToolbar.setLogo(0);

         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
         assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
     }

     @Test
     public void registerOnBackListener_whenBackIsPressed_shouldCallListener() {
         mToolbar.setState(Toolbar.State.SUBPAGE);
         Mutable<Integer> timesBackPressed = new Mutable<>(0);
         Toolbar.OnBackListener listener = () -> {
             timesBackPressed.value++;
             return false;
         };

         mToolbar.registerOnBackListener(listener);
         pressBack();

         assertThat(timesBackPressed.value).isEqualTo(1);
         assertThat(mActivity.getTimesBackPressed()).isEqualTo(1);
     }

     @Test
     public void registerOnBackListener_whenAListenerReturnsTrue_shouldSuppressBack() {
         mToolbar.setState(Toolbar.State.SUBPAGE);

         mToolbar.registerOnBackListener(() -> true);
         pressBack();
         mToolbar.registerOnBackListener(() -> false);
         pressBack();

         assertThat(mActivity.getTimesBackPressed()).isEqualTo(0);
     }

     @Test
     public void testState_twoRow_withTitle_withTabs() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isTrue();

         // Set title and tabs for toolbar.
         toolbar.setTitle("Test title");
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));

         // Toolbar should display two rows, showing both title and tabs.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
     }

     @Test
     public void testState_twoRow_withTitle() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isTrue();

         toolbar.setTitle("Test title");

         // Toolbar should display two rows, but no tabs are set so they should not be visible.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isFalse();
     }

     @Test
     public void testState_twoRow_withTabs() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isTrue();
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));

         // Toolbar should display two rows with an empty title and tabs.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
     }

     @Test
     public void testState_oneRow_withTitle_withTabs() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isFalse();

         // Set title and tabs for toolbar.
         toolbar.setTitle("Test title");
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));

         // With only one row available, toolbar will only show tabs and not the title.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isFalse();
     }

     @Test
     public void testState_oneRow_withTitle() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isFalse();

         toolbar.setTitle("Test title");

         // Toolbar should display one row with the title and no tabs.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isFalse();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
     }

     @Test
     public void testState_oneRow_withTabs() {
         mockResources();
         when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

         Toolbar toolbar = new Toolbar(mContext);
         assertThat(toolbar.isTabsInSecondRow()).isFalse();

         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));
         toolbar.addTab(
                 new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
                         "Foo"));

         // Toolbar should display one row with only tabs.
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
         assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isFalse();
     }

     @Test
     public void registerOnBackListener_whenListenerRegisteredTwice_shouldntCallListenerTwice() {
         mToolbar.setState(Toolbar.State.SUBPAGE);
         Mutable<Integer> timesBackPressed = new Mutable<>(0);
         Toolbar.OnBackListener listener = () -> {
             timesBackPressed.value++;
             return false;
         };

         // Registering a second time shouldn't do anything
         mToolbar.registerOnBackListener(listener);
         mToolbar.registerOnBackListener(listener);
         pressBack();

         assertThat(timesBackPressed.value).isEqualTo(1);
     }

     @Test
     public void unregisterOnBackListener_previouslyRegisteredListener_shouldUnregister() {
         mToolbar.setState(Toolbar.State.SUBPAGE);
         Mutable<Integer> timesBackPressed = new Mutable<>(0);
         Toolbar.OnBackListener listener = () -> {
             timesBackPressed.value++;
             return false;
         };

         mToolbar.registerOnBackListener(listener);
         mToolbar.unregisterOnBackListener(listener);
         pressBack();

         assertThat(timesBackPressed.value).isEqualTo(0);
     }

     @Test
     public void menuItems_builder_id() {
         MenuItem item = MenuItem.builder(mContext)
                 .setId(5)
                 .build();

         assertThat(item.getId()).isEqualTo(5);
     }

     @Test
     public void menuItems_setId_shouldWork() {
         MenuItem item = MenuItem.builder(mContext).build();

         assertThat(item.getId()).isEqualTo(View.NO_ID);

         item.setId(7);

         assertThat(item.getId()).isEqualTo(7);
     }

     @Test
     public void menuItems_whenClicked_shouldCallListener() {
         assertThat(getMenuItemCount()).isEqualTo(0);

         Mutable<Boolean> button1Clicked = new Mutable<>(false);
         Mutable<Boolean> button2Clicked = new Mutable<>(false);
         mToolbar.setMenuItems(Arrays.asList(
                 createMenuItem(i -> button1Clicked.value = true),
                 createMenuItem(i -> button2Clicked.value = true)));

         assertThat(getMenuItemCount()).isEqualTo(2);

         getMenuItemView(0).performClick();

         assertThat(button1Clicked.value).isTrue();

         getMenuItemView(1).performClick();

         assertThat(button2Clicked.value).isTrue();
     }

     @Test
     public void menuItems_null_shouldRemoveExistingMenuItems() {
         mToolbar.setMenuItems(Arrays.asList(
                 createMenuItem(i -> {
                 }),
                 createMenuItem(i -> {
                 })));

         assertThat(getMenuItemCount()).isEqualTo(2);

         mToolbar.setMenuItems(null);

         assertThat(getMenuItemCount()).isEqualTo(0);
     }

     @Test
     public void menuItems_setVisibility_shouldDefaultToShown() {
         MenuItem item = createMenuItem(i -> {
         });
         mToolbar.setMenuItems(Collections.singletonList(item));

         assertThat(getMenuItemView(0).isShown()).isTrue();
     }

     @Test
     public void menuItems_setVisibility_shouldHide() {
         MenuItem item = createMenuItem(i -> {
         });
         mToolbar.setMenuItems(Collections.singletonList(item));

         item.setVisible(false);
         assertThat(getMenuItemView(0).isShown()).isFalse();
     }

     @Test
     public void menuItems_setVisibility_shouldReshowAfterHiding() {
         MenuItem item = createMenuItem(i -> {
         });
         mToolbar.setMenuItems(Collections.singletonList(item));

         item.setVisible(false);
         item.setVisible(true);
         assertThat(getMenuItemView(0).isShown()).isTrue();
     }

     @Test
     public void menuItems_equalItems_shouldntRecreateViews() {
         List<MenuItem> menuItems = Arrays.asList(
                 createMenuItem(i -> {
                 }),
                 createMenuItem(i -> {
                 }));
         mToolbar.setMenuItems(menuItems);

         assertThat(getMenuItemCount()).isEqualTo(2);

         View firstMenuItemView = getMenuItemView(0);

         mToolbar.setMenuItems(menuItems);

         assertThat(firstMenuItemView).isSameAs(getMenuItemView(0));
     }

     @Test
     public void menuItems_searchScreen_shouldHideMenuItems() {
         mToolbar.setMenuItems(Arrays.asList(
                 MenuItem.builder(mContext).setToSearch().build(),
                 createMenuItem(i -> {
                 })));

         mToolbar.setShowMenuItemsWhileSearching(false);
         mToolbar.setState(Toolbar.State.SEARCH);

         assertThat(getMenuItemView(0).isShown()).isFalse();
         assertThat(getMenuItemView(1).isShown()).isFalse();
     }

     @Test
     public void menuItems_showMenuItemsWhileSearching() {
         mToolbar.setMenuItems(Arrays.asList(
                 MenuItem.builder(mContext).setToSearch().build(),
                 createMenuItem(i -> {
                 })));

         mToolbar.setShowMenuItemsWhileSearching(true);
         mToolbar.setState(Toolbar.State.SEARCH);

         assertThat(getMenuItemView(0).isShown()).isFalse();
         assertThat(getMenuItemView(1).isShown()).isTrue();
     }

     private MenuItem createMenuItem(MenuItem.OnClickListener listener) {
         return MenuItem.builder(mContext)
                 .setTitle("Button!")
                 .setOnClickListener(listener)
                 .build();
     }

     private void mockResources() {
         mContext = spy(RuntimeEnvironment.application);
         mResources = spy(mContext.getResources());
         when(mContext.getResources()).thenReturn(mResources);
     }

     private int getMenuItemCount() {
         return mToolbar.getMenuItems().size();
     }

     /**
      * IsShown() will return false for views that are not attached to an activity.
      * This altered version will return true for that case.
      */
     private boolean isViewInToolbarShown(Toolbar toolbar, int id) {
         View current = toolbar.findViewById(id);
         //noinspection ConstantConditions
         do {
             if (current.getVisibility() != View.VISIBLE) {
                 return false;
             }
             ViewParent parent = current.getParent();
             if (parent == null) {
                 return false; // We are not attached to the view root
             }
             if (parent == toolbar || !(parent instanceof View)) {
                 // Return true if we hit the toolbar, or this parent isn't a view.
                 // The parent wouldn't be a view if it was a ViewRootImpl, the parent
                 // of a whole view hierarchy
                 return true;
             }
             current = (View) parent;
         } while (current != null);
         return false;
     }

     private View getMenuItemView(int index) {
         return ((ViewGroup) mToolbar
                 .findViewById(R.id.car_ui_toolbar_menu_items_container))
                 .getChildAt(index);
     }

     private void pressBack() {
         mToolbar.findViewById(R.id.car_ui_toolbar_nav_icon_container).performClick();
     }

     private static class Mutable<T> {
         public T value;

         Mutable(T value) {
             this.value = value;
         }
     }

 }
	/*
	* Copyright 2019 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.car.ui.toolbar;

	import static com.google.common.truth.Truth.assertThat;

	import static org.mockito.Mockito.spy;
	import static org.mockito.Mockito.when;

	import android.content.Context;
	import android.content.res.Resources;
	import android.view.View;
	import android.view.ViewGroup;
	import android.view.ViewParent;

	import com.android.car.ui.R;

	import org.junit.Before;
	import org.junit.Test;
	import org.junit.runner.RunWith;
	import org.robolectric.Robolectric;
	import org.robolectric.RobolectricTestRunner;
	import org.robolectric.RuntimeEnvironment;
	import org.robolectric.android.controller.ActivityController;
	import org.robolectric.annotation.Config;

	import java.util.Arrays;
	import java.util.Collections;
	import java.util.List;

	@RunWith(RobolectricTestRunner.class)
	@Config(shadows = {ExtendedShadowTypeface.class, ShadowAsyncLayoutInflater.class},
	qualifiers = "land")
	public class ToolbarTest {

	private Context mContext;
	private Resources mResources;
	private ActivityController<TestActivity> mActivityController;
	private TestActivity mActivity;
	private Toolbar mToolbar;

	@Before
	public void setUp() {
	mContext = RuntimeEnvironment.application;
	mResources = mContext.getResources();
	mActivityController = Robolectric.buildActivity(TestActivity.class);
	mActivityController.setup();
	mActivity = mActivityController.get();
	mToolbar = mActivity.findViewById(R.id.toolbar);
	}

	private int getTestResourceIdInt(String resource) {
	return mResources.getIdentifier(resource, "id", mContext.getPackageName());
	}

	private int getTestDrawableInt(String drawable) {
	return mResources.getIdentifier(drawable, "drawable", mContext.getPackageName());
	}

	@Test
	public void getters_nochanges_shouldReturnDefaults() {
	assertThat(mToolbar.getBackgroundShown()).isEqualTo(true);
	assertThat(mToolbar.getShowMenuItemsWhileSearching()).isEqualTo(false);
	assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.HOME);
	assertThat(mToolbar.getNavButtonMode()).isEquivalentAccordingToCompareTo(
	Toolbar.NavButtonMode.BACK);
	}

	@Test
	public void setState_subpage_shouldCauseGetStateToReturnSubpage() {
	mToolbar.setState(Toolbar.State.SUBPAGE);

	assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.SUBPAGE);
	}

	@Test
	public void setters_and_getters_test() {
	mToolbar.setTitle("Foo");
	mToolbar.setSearchHint("Foo2");
	mToolbar.setBackgroundShown(false);
	mToolbar.setShowMenuItemsWhileSearching(true);
	mToolbar.setState(Toolbar.State.SUBPAGE);
	mToolbar.setNavButtonMode(Toolbar.NavButtonMode.CLOSE);

	assertThat(mToolbar.getTitle().toString()).isEqualTo("Foo");
	assertThat(mToolbar.getSearchHint().toString()).isEqualTo("Foo2");
	assertThat(mToolbar.getBackgroundShown()).isEqualTo(false);
	assertThat(mToolbar.getShowMenuItemsWhileSearching()).isEqualTo(true);
	assertThat(mToolbar.getState()).isEquivalentAccordingToCompareTo(Toolbar.State.SUBPAGE);
	assertThat(mToolbar.getNavButtonMode()).isEquivalentAccordingToCompareTo(
	Toolbar.NavButtonMode.CLOSE);
	}

	@Test
	public void showLogo_whenSet_andStateIsHome() {
	mToolbar.setState(Toolbar.State.HOME);
	mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isTrue();
	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
	}

	@Test
	public void hideLogo_andTitleLogo_whenSet_andStateIsHome_andLogoIsDisabled() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_show_logo)).thenReturn(false);

	Toolbar toolbar = new Toolbar(mContext);
	toolbar.setState(Toolbar.State.HOME);
	mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_logo)).isFalse();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title_logo)).isFalse();
	}

	@Test
	public void showTitleLogo_whenSet_andStateIsNotHome() {
	mToolbar.setState(Toolbar.State.SUBPAGE);
	mToolbar.setLogo(getTestResourceIdInt("test_ic_launcher"));

	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isTrue();
	}

	@Test
	public void hideLogo_andTitleLogo_whenNotSet_andStateIsHome() {
	mToolbar.setState(Toolbar.State.HOME);
	mToolbar.setLogo(0);

	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
	}

	@Test
	public void hideLogo_andTitleLogo_whenNotSet_andStateIsNotHome() {
	mToolbar.setState(Toolbar.State.SUBPAGE);
	mToolbar.setLogo(0);

	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_logo).isShown()).isFalse();
	assertThat(mToolbar.findViewById(R.id.car_ui_toolbar_title_logo).isShown()).isFalse();
	}

	@Test
	public void registerOnBackListener_whenBackIsPressed_shouldCallListener() {
	mToolbar.setState(Toolbar.State.SUBPAGE);
	Mutable<Integer> timesBackPressed = new Mutable<>(0);
	Toolbar.OnBackListener listener = () -> {
	timesBackPressed.value++;
	return false;
	};

	mToolbar.registerOnBackListener(listener);
	pressBack();

	assertThat(timesBackPressed.value).isEqualTo(1);
	assertThat(mActivity.getTimesBackPressed()).isEqualTo(1);
	}

	@Test
	public void registerOnBackListener_whenAListenerReturnsTrue_shouldSuppressBack() {
	mToolbar.setState(Toolbar.State.SUBPAGE);

	mToolbar.registerOnBackListener(() -> true);
	pressBack();
	mToolbar.registerOnBackListener(() -> false);
	pressBack();

	assertThat(mActivity.getTimesBackPressed()).isEqualTo(0);
	}

	@Test
	public void testState_twoRow_withTitle_withTabs() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isTrue();

	// Set title and tabs for toolbar.
	toolbar.setTitle("Test title");
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));

	// Toolbar should display two rows, showing both title and tabs.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
	}

	@Test
	public void testState_twoRow_withTitle() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isTrue();

	toolbar.setTitle("Test title");

	// Toolbar should display two rows, but no tabs are set so they should not be visible.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isFalse();
	}

	@Test
	public void testState_twoRow_withTabs() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(true);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isTrue();
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));

	// Toolbar should display two rows with an empty title and tabs.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
	}

	@Test
	public void testState_oneRow_withTitle_withTabs() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isFalse();

	// Set title and tabs for toolbar.
	toolbar.setTitle("Test title");
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));

	// With only one row available, toolbar will only show tabs and not the title.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isFalse();
	}

	@Test
	public void testState_oneRow_withTitle() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isFalse();

	toolbar.setTitle("Test title");

	// Toolbar should display one row with the title and no tabs.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isFalse();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isTrue();
	}

	@Test
	public void testState_oneRow_withTabs() {
	mockResources();
	when(mResources.getBoolean(R.bool.car_ui_toolbar_tabs_on_second_row)).thenReturn(false);

	Toolbar toolbar = new Toolbar(mContext);
	assertThat(toolbar.isTabsInSecondRow()).isFalse();

	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));
	toolbar.addTab(
	new TabLayout.Tab(mContext.getDrawable(getTestDrawableInt("test_ic_launcher")),
	"Foo"));

	// Toolbar should display one row with only tabs.
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_tabs)).isTrue();
	assertThat(isViewInToolbarShown(toolbar, R.id.car_ui_toolbar_title)).isFalse();
	}

	@Test
	public void registerOnBackListener_whenListenerRegisteredTwice_shouldntCallListenerTwice() {
	mToolbar.setState(Toolbar.State.SUBPAGE);
	Mutable<Integer> timesBackPressed = new Mutable<>(0);
	Toolbar.OnBackListener listener = () -> {
	timesBackPressed.value++;
	return false;
	};

	// Registering a second time shouldn't do anything
	mToolbar.registerOnBackListener(listener);
	mToolbar.registerOnBackListener(listener);
	pressBack();

	assertThat(timesBackPressed.value).isEqualTo(1);
	}

	@Test
	public void unregisterOnBackListener_previouslyRegisteredListener_shouldUnregister() {
	mToolbar.setState(Toolbar.State.SUBPAGE);
	Mutable<Integer> timesBackPressed = new Mutable<>(0);
	Toolbar.OnBackListener listener = () -> {
	timesBackPressed.value++;
	return false;
	};

	mToolbar.registerOnBackListener(listener);
	mToolbar.unregisterOnBackListener(listener);
	pressBack();

	assertThat(timesBackPressed.value).isEqualTo(0);
	}

	@Test
	public void menuItems_builder_id() {
	MenuItem item = MenuItem.builder(mContext)
	.setId(5)
	.build();

	assertThat(item.getId()).isEqualTo(5);
	}

	@Test
	public void menuItems_setId_shouldWork() {
	MenuItem item = MenuItem.builder(mContext).build();

	assertThat(item.getId()).isEqualTo(View.NO_ID);

	item.setId(7);

	assertThat(item.getId()).isEqualTo(7);
	}

	@Test
	public void menuItems_whenClicked_shouldCallListener() {
	assertThat(getMenuItemCount()).isEqualTo(0);

	Mutable<Boolean> button1Clicked = new Mutable<>(false);
	Mutable<Boolean> button2Clicked = new Mutable<>(false);
	mToolbar.setMenuItems(Arrays.asList(
	createMenuItem(i -> button1Clicked.value = true),
	createMenuItem(i -> button2Clicked.value = true)));

	assertThat(getMenuItemCount()).isEqualTo(2);

	getMenuItemView(0).performClick();

	assertThat(button1Clicked.value).isTrue();

	getMenuItemView(1).performClick();

	assertThat(button2Clicked.value).isTrue();
	}

	@Test
	public void menuItems_null_shouldRemoveExistingMenuItems() {
	mToolbar.setMenuItems(Arrays.asList(
	createMenuItem(i -> {
	}),
	createMenuItem(i -> {
	})));

	assertThat(getMenuItemCount()).isEqualTo(2);

	mToolbar.setMenuItems(null);

	assertThat(getMenuItemCount()).isEqualTo(0);
	}

	@Test
	public void menuItems_setVisibility_shouldDefaultToShown() {
	MenuItem item = createMenuItem(i -> {
	});
	mToolbar.setMenuItems(Collections.singletonList(item));

	assertThat(getMenuItemView(0).isShown()).isTrue();
	}

	@Test
	public void menuItems_setVisibility_shouldHide() {
	MenuItem item = createMenuItem(i -> {
	});
	mToolbar.setMenuItems(Collections.singletonList(item));

	item.setVisible(false);
	assertThat(getMenuItemView(0).isShown()).isFalse();
	}

	@Test
	public void menuItems_setVisibility_shouldReshowAfterHiding() {
	MenuItem item = createMenuItem(i -> {
	});
	mToolbar.setMenuItems(Collections.singletonList(item));

	item.setVisible(false);
	item.setVisible(true);
	assertThat(getMenuItemView(0).isShown()).isTrue();
	}

	@Test
	public void menuItems_equalItems_shouldntRecreateViews() {
	List<MenuItem> menuItems = Arrays.asList(
	createMenuItem(i -> {
	}),
	createMenuItem(i -> {
	}));
	mToolbar.setMenuItems(menuItems);

	assertThat(getMenuItemCount()).isEqualTo(2);

	View firstMenuItemView = getMenuItemView(0);

	mToolbar.setMenuItems(menuItems);

	assertThat(firstMenuItemView).isSameAs(getMenuItemView(0));
	}

	@Test
	public void menuItems_searchScreen_shouldHideMenuItems() {
	mToolbar.setMenuItems(Arrays.asList(
	MenuItem.builder(mContext).setToSearch().build(),
	createMenuItem(i -> {
	})));

	mToolbar.setShowMenuItemsWhileSearching(false);
	mToolbar.setState(Toolbar.State.SEARCH);

	assertThat(getMenuItemView(0).isShown()).isFalse();
	assertThat(getMenuItemView(1).isShown()).isFalse();
	}

	@Test
	public void menuItems_showMenuItemsWhileSearching() {
	mToolbar.setMenuItems(Arrays.asList(
	MenuItem.builder(mContext).setToSearch().build(),
	createMenuItem(i -> {
	})));

	mToolbar.setShowMenuItemsWhileSearching(true);
	mToolbar.setState(Toolbar.State.SEARCH);

	assertThat(getMenuItemView(0).isShown()).isFalse();
	assertThat(getMenuItemView(1).isShown()).isTrue();
	}

	private MenuItem createMenuItem(MenuItem.OnClickListener listener) {
	return MenuItem.builder(mContext)
	.setTitle("Button!")
	.setOnClickListener(listener)
	.build();
	}

	private void mockResources() {
	mContext = spy(RuntimeEnvironment.application);
	mResources = spy(mContext.getResources());
	when(mContext.getResources()).thenReturn(mResources);
	}

	private int getMenuItemCount() {
	return mToolbar.getMenuItems().size();
	}

	/**
	* IsShown() will return false for views that are not attached to an activity.
	* This altered version will return true for that case.
	*/
	private boolean isViewInToolbarShown(Toolbar toolbar, int id) {
	View current = toolbar.findViewById(id);
	//noinspection ConstantConditions
	do {
	if (current.getVisibility() != View.VISIBLE) {
	return false;
	}
	ViewParent parent = current.getParent();
	if (parent == null) {
	return false; // We are not attached to the view root
	}
	if (parent == toolbar \|\| !(parent instanceof View)) {
	// Return true if we hit the toolbar, or this parent isn't a view.
	// The parent wouldn't be a view if it was a ViewRootImpl, the parent
	// of a whole view hierarchy
	return true;
	}
	current = (View) parent;
	} while (current != null);
	return false;
	}

	private View getMenuItemView(int index) {
	return ((ViewGroup) mToolbar
	.findViewById(R.id.car_ui_toolbar_menu_items_container))
	.getChildAt(index);
	}

	private void pressBack() {
	mToolbar.findViewById(R.id.car_ui_toolbar_nav_icon_container).performClick();
	}

	private static class Mutable<T> {
	public T value;

	Mutable(T value) {
	this.value = value;
	}
	}

	}