Merge changes from topic "presubmit-am-f515d2b631e34822b9a0633456f2c165" into...

    private val onChanged: () -> Unit

) : DisplayManager.DisplayListener {

    private var lastRotation = context.display?.rotation ?: Surface.ROTATION_0

    private var lastRotation = Surface.ROTATION_0

    override fun onDisplayAdded(displayId: Int) {}

    override fun onDisplayRemoved(displayId: Int) {}

    /** Listen for changes. */

    fun enable() {

        lastRotation = context.display?.rotation ?: Surface.ROTATION_0

        displayManager.registerDisplayListener(this, handler)

    }

/*

 * 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.systemui.biometrics;

import static com.android.systemui.biometrics.BiometricDisplayListener.SensorType.SideFingerprint;

import static com.android.systemui.biometrics.BiometricDisplayListener.SensorType.UnderDisplayFingerprint;

import static org.mockito.ArgumentMatchers.any;

import static org.mockito.ArgumentMatchers.same;

import static org.mockito.Mockito.never;

import static org.mockito.Mockito.reset;

import static org.mockito.Mockito.spy;

import static org.mockito.Mockito.times;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

import android.content.Context;

import android.hardware.display.DisplayManager;

import android.os.Handler;

import android.testing.AndroidTestingRunner;

import android.testing.TestableLooper;

import android.testing.TestableLooper.RunWithLooper;

import android.view.Display;

import android.view.Surface;

import android.view.Surface.Rotation;

import androidx.test.filters.SmallTest;

import com.android.systemui.SysuiTestCase;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.ArgumentCaptor;

import org.mockito.Captor;

import org.mockito.Mock;

import org.mockito.MockitoAnnotations;

import kotlin.Unit;

import kotlin.jvm.functions.Function0;

@SmallTest

@RunWith(AndroidTestingRunner.class)

@RunWithLooper(setAsMainLooper = true)

public class BiometricDisplayListenerTest extends SysuiTestCase {

    // Dependencies

    @Mock private DisplayManager mDisplayManager;

    @Mock private Display mDisplay;

    @Mock private Function0<Unit> mOnChangedCallback;

    @Mock private UnderDisplayFingerprint mUdfpsType;

    @Mock private SideFingerprint mSidefpsType;

    private Handler mHandler;

    private Context mContextSpy;

    // Captors

    @Captor private ArgumentCaptor<DisplayManager.DisplayListener> mDisplayListenerCaptor;

    @Before

    public void setUp() throws Exception {

        MockitoAnnotations.initMocks(this);

        // Set up mocks

        mContextSpy = spy(mContext);

        when(mContextSpy.getDisplay()).thenReturn(mDisplay);

        // Create a real handler with a TestableLooper.

        TestableLooper testableLooper = TestableLooper.get(this);

        mHandler = new Handler(testableLooper.getLooper());

    }

    @Test

    public void registersDisplayListener_whenEnabled() {

        BiometricDisplayListener listener = new BiometricDisplayListener(

                mContextSpy, mDisplayManager, mHandler, mUdfpsType, mOnChangedCallback);

        listener.enable();

        verify(mDisplayManager).registerDisplayListener(any(), same(mHandler));

    }

    @Test

    public void unregistersDisplayListener_whenDisabled() {

        BiometricDisplayListener listener = new BiometricDisplayListener(

                mContextSpy, mDisplayManager, mHandler, mUdfpsType, mOnChangedCallback);

        listener.enable();

        listener.disable();

        verify(mDisplayManager).unregisterDisplayListener(any());

    }

    @Test

    public void detectsRotationChanges_forUdfps_relativeToRotationWhenEnabled() {

        // Create a listener when the rotation is portrait.

        when(mDisplay.getRotation()).thenReturn(Surface.ROTATION_0);

        BiometricDisplayListener listener = new BiometricDisplayListener(

                mContextSpy, mDisplayManager, mHandler, mUdfpsType, mOnChangedCallback);

        // Rotate the device to landscape and then enable the listener.

        when(mDisplay.getRotation()).thenReturn(Surface.ROTATION_90);

        listener.enable();

        verify(mDisplayManager).registerDisplayListener(mDisplayListenerCaptor.capture(),

                same(mHandler));

        // Rotate the device back to portrait and ensure the rotation is detected.

        when(mDisplay.getRotation()).thenReturn(Surface.ROTATION_0);

        mDisplayListenerCaptor.getValue().onDisplayChanged(999);

        verify(mOnChangedCallback).invoke();

    }

    @Test

    public void callsOnChanged_forUdfps_onlyWhenRotationChanges() {

        final @Rotation int[] rotations =

                new int[]{

                        Surface.ROTATION_0,

                        Surface.ROTATION_90,

                        Surface.ROTATION_180,

                        Surface.ROTATION_270

                };

        for (@Rotation int rot1 : rotations) {

            for (@Rotation int rot2 : rotations) {

                // Make the third rotation the same as the first one to simplify this test.

                @Rotation int rot3 = rot1;

                // Clean up prior interactions.

                reset(mDisplayManager);

                reset(mDisplay);

                reset(mOnChangedCallback);

                // Set up the mock for 3 invocations.

                when(mDisplay.getRotation()).thenReturn(rot1, rot2, rot3);

                BiometricDisplayListener listener = new BiometricDisplayListener(

                        mContextSpy, mDisplayManager, mHandler, mUdfpsType, mOnChangedCallback);

                listener.enable();

                // The listener should record the current rotation and register a display listener.

                verify(mDisplay).getRotation();

                verify(mDisplayManager)

                        .registerDisplayListener(mDisplayListenerCaptor.capture(), same(mHandler));

                // Test the first rotation since the listener was enabled.

                mDisplayListenerCaptor.getValue().onDisplayChanged(123);

                if (rot2 != rot1) {

                    verify(mOnChangedCallback).invoke();

                } else {

                    verify(mOnChangedCallback, never()).invoke();

                }

                // Test continued rotations.

                mDisplayListenerCaptor.getValue().onDisplayChanged(123);

                if (rot3 != rot2) {

                    verify(mOnChangedCallback, times(2)).invoke();

                } else {

                    verify(mOnChangedCallback, never()).invoke();

                }

            }

        }

    }

    @Test

    public void callsOnChanged_forSideFingerprint_whenAnythingDisplayChanges() {

        // Any rotation will do for this test, we just need to return something.

        when(mDisplay.getRotation()).thenReturn(Surface.ROTATION_0);

        BiometricDisplayListener listener = new BiometricDisplayListener(

                mContextSpy, mDisplayManager, mHandler, mSidefpsType, mOnChangedCallback);

        listener.enable();

        // The listener should register a display listener.

        verify(mDisplayManager)

                .registerDisplayListener(mDisplayListenerCaptor.capture(), same(mHandler));

        // mOnChangedCallback should be invoked for all calls to onDisplayChanged.

        mDisplayListenerCaptor.getValue().onDisplayChanged(123);

        mDisplayListenerCaptor.getValue().onDisplayChanged(123);

        verify(mOnChangedCallback, times(2)).invoke();

    }

}