Setup ToggleColorInversionPreferenceFragment test infrastructure

/*

 * Copyright (C) 2022 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.settings.accessibility;

import static com.android.settings.accessibility.AccessibilityUtil.State.OFF;

import static com.android.settings.accessibility.AccessibilityUtil.State.ON;

import static com.android.settings.accessibility.ToggleColorInversionPreferenceFragment.KEY_USE_SERVICE_PREFERENCE;

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

import static org.mockito.Mockito.doReturn;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.when;

import android.content.ComponentName;

import android.content.Context;

import android.os.Bundle;

import android.provider.Settings;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.PopupWindow;

import androidx.fragment.app.FragmentActivity;

import androidx.preference.PreferenceManager;

import androidx.preference.PreferenceScreen;

import androidx.test.core.app.ApplicationProvider;

import com.android.settings.accessibility.AccessibilityUtil.QuickSettingsTooltipType;

import com.android.settings.testutils.shadow.ShadowFragment;

import com.android.settings.widget.SettingsMainSwitchPreference;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.Answers;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import org.robolectric.RobolectricTestRunner;

import org.robolectric.annotation.Config;

import org.robolectric.shadow.api.Shadow;

import org.robolectric.shadows.ShadowApplication;

/** Tests for {@link ToggleColorInversionPreferenceFragment} */

@RunWith(RobolectricTestRunner.class)

@Config(shadows = ShadowFragment.class)

public class ToggleColorInversionPreferenceFragmentTest {

    private final Context mContext = ApplicationProvider.getApplicationContext();

    private TestToggleColorInversionPreferenceFragment mFragment;

    private PreferenceScreen mScreen;

    private SettingsMainSwitchPreference mSwitchPreference;

    @Mock(answer = Answers.RETURNS_DEEP_STUBS)

    private PreferenceManager mPreferenceManager;

    @Mock

    private FragmentActivity mActivity;

    @Before

    public void setUpTestFragment() {

        MockitoAnnotations.initMocks(this);

        mFragment = spy(new TestToggleColorInversionPreferenceFragment(mContext));

        when(mFragment.getPreferenceManager()).thenReturn(mPreferenceManager);

        when(mFragment.getPreferenceManager().getContext()).thenReturn(mContext);

        when(mFragment.getContext()).thenReturn(mContext);

        when(mFragment.getActivity()).thenReturn(mActivity);

        when(mActivity.getContentResolver()).thenReturn(mContext.getContentResolver());

        mScreen = spy(new PreferenceScreen(mContext, /* attrs= */ null));

        when(mScreen.findPreference(KEY_USE_SERVICE_PREFERENCE))

                .thenReturn(mFragment.mToggleServiceSwitchPreference);

        doReturn(mScreen).when(mFragment).getPreferenceScreen();

        mSwitchPreference = mScreen.findPreference(KEY_USE_SERVICE_PREFERENCE);

    }

    @Test

    public void onResume_colorCorrectEnabled_shouldReturnTrue() {

        Settings.Secure.putInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, ON);

        mFragment.onAttach(mContext);

        mFragment.onCreate(Bundle.EMPTY);

        mFragment.onResume();

        assertThat(mSwitchPreference.isChecked()).isTrue();

    }

    @Test

    public void onResume_colorCorrectDisabled_shouldReturnFalse() {

        Settings.Secure.putInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, OFF);

        mFragment.onAttach(mContext);

        mFragment.onCreate(Bundle.EMPTY);

        mFragment.onResume();

        assertThat(mSwitchPreference.isChecked()).isFalse();

    }

    @Test

    public void onResume_colorCorrectEnabled_switchPreferenceChecked_notShowTooltips() {

        Settings.Secure.putInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, ON);

        mSwitchPreference.setChecked(true);

        mFragment.onAttach(mContext);

        mFragment.onCreate(Bundle.EMPTY);

        mFragment.onResume();

        assertThat(getLatestPopupWindow()).isNull();

    }

    @Test

    public void onPreferenceToggled_colorCorrectDisabled_shouldReturnTrueAndShowTooltipView() {

        Settings.Secure.putInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, OFF);

        mSwitchPreference.setChecked(false);

        mFragment.onAttach(mContext);

        mFragment.onCreateView(LayoutInflater.from(mContext), mock(ViewGroup.class), Bundle.EMPTY);

        mFragment.onViewCreated(mFragment.getView(), Bundle.EMPTY);

        mFragment.onPreferenceToggled(mSwitchPreference.getKey(), true);

        final boolean isEnabled = Settings.Secure.getInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, OFF) == ON;

        assertThat(isEnabled).isTrue();

        assertThat(getLatestPopupWindow()).isNotNull();

        assertThat(getLatestPopupWindow().isShowing()).isTrue();

    }

    @Test

    public void onPreferenceToggled_colorCorrectEnabled_shouldReturnFalseAndNotShowTooltipView() {

        Settings.Secure.putInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, ON);

        mSwitchPreference.setChecked(true);

        mFragment.onAttach(mContext);

        mFragment.onCreate(Bundle.EMPTY);

        mFragment.onPreferenceToggled(mSwitchPreference.getKey(), false);

        final boolean isEnabled = Settings.Secure.getInt(mContext.getContentResolver(),

                Settings.Secure.ACCESSIBILITY_DISPLAY_INVERSION_ENABLED, OFF) == ON;

        assertThat(isEnabled).isFalse();

        assertThat(getLatestPopupWindow()).isNull();

    }

    private static PopupWindow getLatestPopupWindow() {

        final ShadowApplication shadowApplication =

                Shadow.extract(ApplicationProvider.getApplicationContext());

        return shadowApplication.getLatestPopupWindow();

    }

    private static class TestToggleColorInversionPreferenceFragment extends

            ToggleColorInversionPreferenceFragment {

        private static final String PLACEHOLDER_PACKAGE_NAME = "com.placeholder.example";

        private static final String PLACEHOLDER_CLASS_NAME =

                PLACEHOLDER_PACKAGE_NAME + ".placeholder";

        private static final ComponentName PLACEHOLDER_COMPONENT_NAME = new ComponentName(

                PLACEHOLDER_PACKAGE_NAME, PLACEHOLDER_CLASS_NAME);

        private static final String PLACEHOLDER_TILE_TOOLTIP_CONTENT =

                PLACEHOLDER_PACKAGE_NAME + "tooltip_content";

        TestToggleColorInversionPreferenceFragment(Context context) {

            super();

            mComponentName = PLACEHOLDER_COMPONENT_NAME;

            final SettingsMainSwitchPreference switchPreference =

                    new SettingsMainSwitchPreference(context);

            switchPreference.setKey(KEY_USE_SERVICE_PREFERENCE);

            mToggleServiceSwitchPreference = switchPreference;

            setArguments(new Bundle());

        }

        @Override

        public void onViewCreated(View view, Bundle savedInstanceState) {

            // do nothing

        }

        @Override

        public View onCreateView(LayoutInflater inflater, ViewGroup container,

                Bundle savedInstanceState) {

            return mock(View.class);

        }

        @Override

        protected void updateShortcutPreference() {

            // UI related function, do nothing in tests

        }

        @Override

        ComponentName getTileComponentName() {

            return PLACEHOLDER_COMPONENT_NAME;

        }

        @Override

        protected CharSequence getTileTooltipContent(@QuickSettingsTooltipType int type) {

            return PLACEHOLDER_TILE_TOOLTIP_CONTENT;

        }

        @Override

        public View getView() {

            return mock(View.class);

        }

    }

}