tests/tests/view/src/android/view/cts/GravityTest.java

/*
 * Copyright (C) 2008 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 android.view.cts;

import dalvik.annotation.TestLevel;
import dalvik.annotation.TestTargetClass;
import dalvik.annotation.TestTargetNew;
import dalvik.annotation.TestTargets;
import dalvik.annotation.ToBeFixed;

import android.graphics.Rect;
import android.test.AndroidTestCase;
import android.view.Gravity;

/**
 * Test {@link Gravity}.
 */
@TestTargetClass(Gravity.class)
public class GravityTest extends AndroidTestCase {
    private Rect mInRect;
    private Rect mOutRect;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mInRect = new Rect(1, 2, 3, 4);
        mOutRect = new Rect();
    }

    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "Test constructor(s) of {@link Gravity}",
        method = "Gravity",
        args = {}
    )
    public void testConstructor() {
        new Gravity();
    }

    @TestTargets({
        @TestTargetNew(
            level = TestLevel.COMPLETE,
            method = "apply",
            args = {int.class, int.class, int.class, android.graphics.Rect.class,
                    android.graphics.Rect.class}
        ),
        @TestTargetNew(
            level = TestLevel.COMPLETE,
            method = "apply",
            args = {int.class, int.class, int.class, android.graphics.Rect.class, int.class,
                    int.class, android.graphics.Rect.class}
        )
    })
    @ToBeFixed(bug = "1695243", explanation = "Incorrect javadoc for apply. FILL gravities also" +
            "respect the adjustment parameters.")
    public void testApply() {
        mInRect = new Rect(10, 20, 30, 40);
        Gravity.apply(Gravity.TOP, 2, 3, mInRect, mOutRect);
        assertEquals(19, mOutRect.left);
        assertEquals(21, mOutRect.right);
        assertEquals(20, mOutRect.top);
        assertEquals(23, mOutRect.bottom);
        Gravity.apply(Gravity.TOP, 2, 3, mInRect, 5, 5, mOutRect);
        assertEquals(24, mOutRect.left);
        assertEquals(26, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(28, mOutRect.bottom);

        Gravity.apply(Gravity.BOTTOM, 2, 3, mInRect, mOutRect);
        assertEquals(19, mOutRect.left);
        assertEquals(21, mOutRect.right);
        assertEquals(37, mOutRect.top);
        assertEquals(40, mOutRect.bottom);
        Gravity.apply(Gravity.BOTTOM, 2, 3, mInRect, 5, 5, mOutRect);
        assertEquals(24, mOutRect.left);
        assertEquals(26, mOutRect.right);
        assertEquals(32, mOutRect.top);
        assertEquals(35, mOutRect.bottom);

        Gravity.apply(Gravity.LEFT, 2, 10, mInRect, mOutRect);
        assertEquals(10, mOutRect.left);
        assertEquals(12, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(35, mOutRect.bottom);
        Gravity.apply(Gravity.LEFT, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(15, mOutRect.left);
        assertEquals(17, mOutRect.right);
        assertEquals(30, mOutRect.top);
        assertEquals(40, mOutRect.bottom);

        Gravity.apply(Gravity.RIGHT, 2, 10, mInRect, mOutRect);
        assertEquals(28, mOutRect.left);
        assertEquals(30, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(35, mOutRect.bottom);
        Gravity.apply(Gravity.RIGHT, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(23, mOutRect.left);
        assertEquals(25, mOutRect.right);
        assertEquals(30, mOutRect.top);
        assertEquals(40, mOutRect.bottom);

        Gravity.apply(Gravity.CENTER_VERTICAL, 2, 10, mInRect, mOutRect);
        assertEquals(19, mOutRect.left);
        assertEquals(21, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(35, mOutRect.bottom);
        Gravity.apply(Gravity.CENTER_VERTICAL, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(24, mOutRect.left);
        assertEquals(26, mOutRect.right);
        assertEquals(30, mOutRect.top);
        assertEquals(40, mOutRect.bottom);

        Gravity.apply(Gravity.FILL_VERTICAL, 2, 10, mInRect, mOutRect);
        assertEquals(19, mOutRect.left);
        assertEquals(21, mOutRect.right);
        assertEquals(20, mOutRect.top);
        assertEquals(40, mOutRect.bottom);
        Gravity.apply(Gravity.FILL_VERTICAL, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(24, mOutRect.left);
        assertEquals(26, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(45, mOutRect.bottom);

        Gravity.apply(Gravity.CENTER_HORIZONTAL, 2, 10, mInRect, mOutRect);
        assertEquals(19, mOutRect.left);
        assertEquals(21, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(35, mOutRect.bottom);
        Gravity.apply(Gravity.CENTER_HORIZONTAL, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(24, mOutRect.left);
        assertEquals(26, mOutRect.right);
        assertEquals(30, mOutRect.top);
        assertEquals(40, mOutRect.bottom);

        Gravity.apply(Gravity.FILL_HORIZONTAL, 2, 10, mInRect, mOutRect);
        assertEquals(10, mOutRect.left);
        assertEquals(30, mOutRect.right);
        assertEquals(25, mOutRect.top);
        assertEquals(35, mOutRect.bottom);
        Gravity.apply(Gravity.FILL_HORIZONTAL, 2, 10, mInRect, 5, 5, mOutRect);
        assertEquals(15, mOutRect.left);
        assertEquals(35, mOutRect.right);
        assertEquals(30, mOutRect.top);
        assertEquals(40, mOutRect.bottom);
    }

    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "Test {@link Gravity#isVertical(int)}",
        method = "isVertical",
        args = {int.class}
    )
    public void testIsVertical() {
        assertFalse(Gravity.isVertical(-1));
        assertTrue(Gravity.isVertical(Gravity.VERTICAL_GRAVITY_MASK));
        assertFalse(Gravity.isVertical(Gravity.NO_GRAVITY));
    }

    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "Test {@link Gravity#isHorizontal(int)}",
        method = "isHorizontal",
        args = {int.class}
    )
    public void testIsHorizontal() {
        assertFalse(Gravity.isHorizontal(-1));
        assertTrue(Gravity.isHorizontal(Gravity.HORIZONTAL_GRAVITY_MASK));
        assertFalse(Gravity.isHorizontal(Gravity.NO_GRAVITY));
    }

    @TestTargetNew(
        level = TestLevel.COMPLETE,
        method = "applyDisplay",
        args = {int.class, android.graphics.Rect.class, android.graphics.Rect.class}
    )
    public void testApplyDisplay() {
        Rect display = new Rect(20, 30, 40, 50);
        Rect inoutRect = new Rect(10, 10, 30, 60);
        Gravity.applyDisplay(Gravity.DISPLAY_CLIP_VERTICAL, display, inoutRect);
        assertEquals(20, inoutRect.left);
        assertEquals(40, inoutRect.right);
        assertEquals(30, inoutRect.top);
        assertEquals(50, inoutRect.bottom);

        display = new Rect(20, 30, 40, 50);
        inoutRect = new Rect(10, 10, 30, 60);
        Gravity.applyDisplay(Gravity.DISPLAY_CLIP_HORIZONTAL, display, inoutRect);
        assertEquals(20, inoutRect.left);
        assertEquals(30, inoutRect.right);
        assertEquals(30, inoutRect.top);
        assertEquals(50, inoutRect.bottom);
    }
}