services/tests/servicestests/src/com/android/server/wm/utils/WmDisplayCutoutTest.java

/*
 * Copyright (C) 2018 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.utils;


import static android.view.DisplayCutout.NO_CUTOUT;
import static android.view.DisplayCutout.BOUNDS_POSITION_BOTTOM;
import static android.view.DisplayCutout.BOUNDS_POSITION_LEFT;
import static android.view.DisplayCutout.BOUNDS_POSITION_RIGHT;
import static android.view.DisplayCutout.BOUNDS_POSITION_TOP;
import static android.view.DisplayCutout.fromBoundingRect;

import static org.hamcrest.Matchers.equalTo;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertThat;


import android.graphics.Insets;
import android.graphics.Rect;
import android.platform.test.annotations.Presubmit;
import android.util.Size;
import android.view.DisplayCutout;

import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;

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

import java.util.Arrays;

/**
 * Tests for {@link WmDisplayCutout}
 *
 * Run with: atest WmDisplayCutoutTest
 */
@RunWith(AndroidJUnit4.class)
@SmallTest
@Presubmit
public class WmDisplayCutoutTest {
    private static final Rect ZERO_RECT = new Rect();

    private final DisplayCutout mCutoutTop = new DisplayCutout(
            Insets.of(0, 100, 0, 0),
            null /* boundLeft */, new Rect(50, 0, 75, 100) /* boundTop */,
            null /* boundRight */, null /* boundBottom */);

    @Test
    public void calculateRelativeTo_top() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 0, 100, 20, BOUNDS_POSITION_TOP), 200, 400)
                .calculateRelativeTo(new Rect(5, 5, 95, 195));

        assertEquals(new Rect(0, 15, 0, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void calculateRelativeTo_left() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 0, 20, 100, BOUNDS_POSITION_LEFT), 400, 200)
                .calculateRelativeTo(new Rect(5, 5, 195, 95));

        assertEquals(new Rect(15, 0, 0, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void calculateRelativeTo_bottom() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 180, 100, 200, BOUNDS_POSITION_BOTTOM), 100, 200)
                .calculateRelativeTo(new Rect(5, 5, 95, 195));

        assertEquals(new Rect(0, 0, 0, 15), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void calculateRelativeTo_right() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(180, 0, 200, 100, BOUNDS_POSITION_RIGHT), 200, 100)
                .calculateRelativeTo(new Rect(5, 5, 195, 95));

        assertEquals(new Rect(0, 0, 15, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void calculateRelativeTo_bounds() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 0, 100, 20, BOUNDS_POSITION_TOP), 200, 400)
                .calculateRelativeTo(new Rect(5, 10, 95, 180));

        assertThat(cutout.getDisplayCutout().getBoundingRectTop(),
                equalTo(new Rect(-5, -10, 95, 10)));
    }

    @Test
    public void computeSafeInsets_top() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 0, 100, 20, BOUNDS_POSITION_TOP), 200, 400);

        assertEquals(new Rect(0, 20, 0, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void computeSafeInsets_left() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 0, 20, 100, BOUNDS_POSITION_LEFT), 400, 200);

        assertEquals(new Rect(20, 0, 0, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void computeSafeInsets_bottom() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(0, 180, 100, 200, BOUNDS_POSITION_BOTTOM), 100, 200);

        assertEquals(new Rect(0, 0, 0, 20), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void computeSafeInsets_right() {
        WmDisplayCutout cutout = WmDisplayCutout.computeSafeInsets(
                fromBoundingRect(180, 0, 200, 100, BOUNDS_POSITION_RIGHT), 200, 100);

        assertEquals(new Rect(0, 0, 20, 0), cutout.getDisplayCutout().getSafeInsets());
    }

    @Test
    public void computeSafeInsets_bounds() {
        DisplayCutout cutout = WmDisplayCutout.computeSafeInsets(mCutoutTop, 1000,
                2000).getDisplayCutout();

        assertEquals(mCutoutTop.getBoundingRects(), cutout.getBoundingRects());
    }

    @Test
    public void test_equals() {
        assertEquals(new WmDisplayCutout(NO_CUTOUT, null), new WmDisplayCutout(NO_CUTOUT, null));
        assertEquals(new WmDisplayCutout(mCutoutTop, new Size(1, 2)),
                new WmDisplayCutout(mCutoutTop, new Size(1, 2)));

        assertNotEquals(new WmDisplayCutout(mCutoutTop, new Size(1, 2)),
                new WmDisplayCutout(mCutoutTop, new Size(5, 6)));
        assertNotEquals(new WmDisplayCutout(mCutoutTop, new Size(1, 2)),
                new WmDisplayCutout(NO_CUTOUT, new Size(1, 2)));
    }

    @Test
    public void test_hashCode() {
        assertEquals(new WmDisplayCutout(NO_CUTOUT, null).hashCode(),
                new WmDisplayCutout(NO_CUTOUT, null).hashCode());
        assertEquals(new WmDisplayCutout(mCutoutTop, new Size(1, 2)).hashCode(),
                new WmDisplayCutout(mCutoutTop, new Size(1, 2)).hashCode());
    }
}