/*
 * Copyright (C) 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.server.wm;

import static android.view.SurfaceControl.FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN;
import static android.view.SurfaceControl.RefreshRateRange.FLOAT_TOLERANCE;
import static android.view.WindowManager.LayoutParams.TYPE_BASE_APPLICATION;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import android.hardware.display.DisplayManager;
import android.os.Parcel;
import android.platform.test.annotations.Presubmit;
import android.view.Display.Mode;
import android.view.Surface;
import android.view.WindowInsets;
import android.view.WindowManager;
import android.view.WindowManager.LayoutParams;

import androidx.test.filters.SmallTest;

import com.android.server.wm.RefreshRatePolicy.FrameRateVote;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;

/**
 * Build/Install/Run:
 *  atest WmTests:RefreshRatePolicyTest
 */
@SmallTest
@Presubmit
@RunWith(WindowTestRunner.class)
public class RefreshRatePolicyTest extends WindowTestsBase {
    private static final int HI_MODE_ID = 1;
    private static final float HI_REFRESH_RATE = 90;

    private static final int MID_MODE_ID = 2;
    private static final float MID_REFRESH_RATE = 70;

    private static final int LOW_MODE_ID = 3;
    private static final float LOW_REFRESH_RATE = 60;

    private RefreshRatePolicy mPolicy;
    private HighRefreshRateDenylist mDenylist = mock(HighRefreshRateDenylist.class);

    private static final FrameRateVote FRAME_RATE_VOTE_NONE = new FrameRateVote();
    private static final FrameRateVote FRAME_RATE_VOTE_DENY_LIST =
            new FrameRateVote(LOW_REFRESH_RATE, Surface.FRAME_RATE_COMPATIBILITY_EXACT,
                    FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN);
    private static final FrameRateVote FRAME_RATE_VOTE_LOW_EXACT =
            new FrameRateVote(LOW_REFRESH_RATE, Surface.FRAME_RATE_COMPATIBILITY_EXACT,
                    FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN);
    private static final FrameRateVote FRAME_RATE_VOTE_HI_EXACT =
            new FrameRateVote(HI_REFRESH_RATE, Surface.FRAME_RATE_COMPATIBILITY_EXACT,
                    FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN);
    private static final FrameRateVote FRAME_RATE_VOTE_LOW_PREFERRED =
            new FrameRateVote(LOW_REFRESH_RATE, Surface.FRAME_RATE_COMPATIBILITY_DEFAULT,
                    FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN);
    private static final FrameRateVote FRAME_RATE_VOTE_HI_PREFERRED =
            new FrameRateVote(HI_REFRESH_RATE, Surface.FRAME_RATE_COMPATIBILITY_DEFAULT,
                    FRAME_RATE_SELECTION_STRATEGY_OVERRIDE_CHILDREN);

    // Parcel and Unparcel the LayoutParams in the window state to test the path the object
    // travels from the app's process to system server
    void parcelLayoutParams(WindowState window) {
        Parcel parcel = Parcel.obtain();
        window.mAttrs.writeToParcel(parcel, 0);
        parcel.setDataPosition(0);
        window.mAttrs.copyFrom(new LayoutParams(parcel));
        parcel.recycle();
    }

    @Before
    public void setUp() {
        Mode defaultMode = mDisplayInfo.getDefaultMode();
        Mode hiMode = new Mode(HI_MODE_ID,
                defaultMode.getPhysicalWidth(), defaultMode.getPhysicalHeight(), HI_REFRESH_RATE);
        Mode midMode = new Mode(MID_MODE_ID,
                defaultMode.getPhysicalWidth(), defaultMode.getPhysicalHeight(), MID_REFRESH_RATE);
        Mode lowMode = new Mode(LOW_MODE_ID,
                defaultMode.getPhysicalWidth(), defaultMode.getPhysicalHeight(), LOW_REFRESH_RATE);
        mDisplayInfo.supportedModes = new Mode[] { hiMode, midMode };
        mDisplayInfo.appsSupportedModes = new Mode[] { hiMode, midMode, lowMode };
        mDisplayInfo.supportedRefreshRates = new float[] {HI_REFRESH_RATE, MID_REFRESH_RATE,
                LOW_REFRESH_RATE};
        mDisplayInfo.defaultModeId = HI_MODE_ID;
        mPolicy = new RefreshRatePolicy(mWm, mDisplayInfo, mDenylist);
    }

    WindowState createWindow(String name) {
        WindowState window = newWindowBuilder(name, TYPE_BASE_APPLICATION).build();
        when(window.getDisplayInfo()).thenReturn(mDisplayInfo);
        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_WITHIN_GROUPS);
        return window;
    }

    @Test
    public void testCamera() {
        final WindowState cameraUsingWindow = createWindow("cameraUsingWindow");
        cameraUsingWindow.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(cameraUsingWindow);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE, LOW_REFRESH_RATE);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.removeRefreshRateRangeForPackage("com.android.test");
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testCameraRange() {
        final WindowState cameraUsingWindow = createWindow("cameraUsingWindow");
        cameraUsingWindow.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(cameraUsingWindow);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE, MID_REFRESH_RATE);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(MID_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.removeRefreshRateRangeForPackage("com.android.test");
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testCameraRange_OutOfRange() {
        final WindowState cameraUsingWindow = createWindow("cameraUsingWindow");
        cameraUsingWindow.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(cameraUsingWindow);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE - 10, HI_REFRESH_RATE + 10);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(HI_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        mPolicy.removeRefreshRateRangeForPackage("com.android.test");
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testDenyList() {
        final WindowState denylistedWindow = createWindow("denylistedWindow");
        denylistedWindow.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(denylistedWindow);
        when(mDenylist.isDenylisted("com.android.test")).thenReturn(true);
        assertEquals(0, mPolicy.getPreferredModeId(denylistedWindow));
        assertTrue(mPolicy.updateFrameRateVote(denylistedWindow));
        assertEquals(FRAME_RATE_VOTE_DENY_LIST, denylistedWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(denylistedWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(denylistedWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppOverridePreferredModeId_denylist() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredDisplayModeId = HI_MODE_ID;
        parcelLayoutParams(overrideWindow);
        when(mDenylist.isDenylisted("com.android.test")).thenReturn(true);
        assertEquals(HI_MODE_ID, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_HI_EXACT, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppOverridePreferredRefreshRate_denylist() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredRefreshRate = HI_REFRESH_RATE;
        parcelLayoutParams(overrideWindow);
        when(mDenylist.isDenylisted("com.android.test")).thenReturn(true);
        assertEquals(0, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_HI_PREFERRED, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppOverridePreferredModeId_camera() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredDisplayModeId = HI_MODE_ID;
        parcelLayoutParams(overrideWindow);
        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE, LOW_REFRESH_RATE);
        assertEquals(HI_MODE_ID, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_HI_EXACT, overrideWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppOverridePreferredRefreshRate_camera() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredRefreshRate = HI_REFRESH_RATE;
        parcelLayoutParams(overrideWindow);
        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE, LOW_REFRESH_RATE);
        assertEquals(0, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_HI_PREFERRED, overrideWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testInsetsAnimationAppOverridePreferredModeId() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredDisplayModeId = LOW_MODE_ID;
        parcelLayoutParams(overrideWindow);
        assertEquals(LOW_MODE_ID, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_LOW_EXACT, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);

        overrideWindow.setAnimatingTypes(WindowInsets.Type.statusBars(), null /* statsToken */);
        assertEquals(LOW_MODE_ID, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testInsetsAnimationAppOverridePreferredRefreshRate() {
        final WindowState overrideWindow = createWindow("overrideWindow");
        overrideWindow.mAttrs.packageName = "com.android.test";
        overrideWindow.mAttrs.preferredRefreshRate = LOW_REFRESH_RATE;
        parcelLayoutParams(overrideWindow);
        assertEquals(0, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_LOW_PREFERRED, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);

        overrideWindow.setAnimatingTypes(WindowInsets.Type.statusBars(), null /* statsToken */);
        assertEquals(0, mPolicy.getPreferredModeId(overrideWindow));
        assertTrue(mPolicy.updateFrameRateVote(overrideWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, overrideWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(overrideWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(overrideWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAnimatingCamera() {
        final WindowState cameraUsingWindow = createWindow("cameraUsingWindow");
        cameraUsingWindow.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(cameraUsingWindow);

        mPolicy.addRefreshRateRangeForPackage("com.android.test",
                LOW_REFRESH_RATE, LOW_REFRESH_RATE);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(LOW_REFRESH_RATE,
                mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);

        requestTransition(cameraUsingWindow.mActivityRecord, WindowManager.TRANSIT_OPEN);
        mDisplayContent.mTransitionController.collect(cameraUsingWindow.mActivityRecord);
        assertEquals(0, mPolicy.getPreferredModeId(cameraUsingWindow));
        assertFalse(mPolicy.updateFrameRateVote(cameraUsingWindow));
        assertEquals(FRAME_RATE_VOTE_NONE, cameraUsingWindow.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(cameraUsingWindow), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppMaxRefreshRate() {
        final WindowState window = createWindow("window");
        window.mAttrs.preferredMaxDisplayRefreshRate = LOW_REFRESH_RATE;
        parcelLayoutParams(window);
        assertEquals(0, mPolicy.getPreferredModeId(window));
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(window), FLOAT_TOLERANCE);
        assertEquals(LOW_REFRESH_RATE, mPolicy.getPreferredMaxRefreshRate(window), FLOAT_TOLERANCE);

        requestTransition(window.mActivityRecord, WindowManager.TRANSIT_OPEN);
        mDisplayContent.mTransitionController.collect(window.mActivityRecord);
        assertEquals(0, mPolicy.getPreferredModeId(window));
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(window), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(window), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppMinRefreshRate() {
        final WindowState window = createWindow("window");
        window.mAttrs.preferredMinDisplayRefreshRate = LOW_REFRESH_RATE;
        parcelLayoutParams(window);
        assertEquals(0, mPolicy.getPreferredModeId(window));
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
        assertEquals(LOW_REFRESH_RATE, mPolicy.getPreferredMinRefreshRate(window), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(window), FLOAT_TOLERANCE);

        requestTransition(window.mActivityRecord, WindowManager.TRANSIT_OPEN);
        mDisplayContent.mTransitionController.collect(window.mActivityRecord);
        assertEquals(0, mPolicy.getPreferredModeId(window));
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(window), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(window), FLOAT_TOLERANCE);
    }

    @Test
    public void testAppPreferredRefreshRate() {
        final WindowState window = createWindow("window");
        window.mAttrs.preferredRefreshRate = LOW_REFRESH_RATE;
        parcelLayoutParams(window);
        assertEquals(0, mPolicy.getPreferredModeId(window));
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_LOW_PREFERRED, window.mFrameRateVote);
        assertEquals(0, mPolicy.getPreferredMinRefreshRate(window), FLOAT_TOLERANCE);
        assertEquals(0, mPolicy.getPreferredMaxRefreshRate(window), FLOAT_TOLERANCE);
    }

    @Test
    public void testSwitchingTypeForExactVote() {
        final WindowState window = createWindow("window");
        window.mAttrs.preferredDisplayModeId = HI_MODE_ID;
        parcelLayoutParams(window);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_NONE);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_WITHIN_GROUPS);
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_HI_EXACT, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_ACROSS_AND_WITHIN_GROUPS);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_HI_EXACT, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_RENDER_FRAME_RATE_ONLY);
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
    }

    @Test
    public void testSwitchingTypeForPreferredVote() {
        final WindowState window = createWindow("window");
        window.mAttrs.preferredRefreshRate = HI_REFRESH_RATE;
        parcelLayoutParams(window);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_NONE);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_WITHIN_GROUPS);
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_HI_PREFERRED, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_ACROSS_AND_WITHIN_GROUPS);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_HI_PREFERRED, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_RENDER_FRAME_RATE_ONLY);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_HI_PREFERRED, window.mFrameRateVote);
    }

    @Test
    public void testSwitchingTypeForDenylist() {
        when(mDenylist.isDenylisted("com.android.test")).thenReturn(true);

        final WindowState window = createWindow("window");
        window.mAttrs.packageName = "com.android.test";
        parcelLayoutParams(window);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_NONE);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_WITHIN_GROUPS);
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_LOW_EXACT, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_ACROSS_AND_WITHIN_GROUPS);
        assertFalse(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_LOW_EXACT, window.mFrameRateVote);

        when(window.mWmService.mDisplayManagerInternal.getRefreshRateSwitchingType())
                .thenReturn(DisplayManager.SWITCHING_TYPE_RENDER_FRAME_RATE_ONLY);
        assertTrue(mPolicy.updateFrameRateVote(window));
        assertEquals(FRAME_RATE_VOTE_NONE, window.mFrameRateVote);
    }
}