tests/tests/view/src/android/view/animation/cts/AnimationUtilsTest.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.animation.cts;

import com.android.cts.view.R;


import android.content.Context;
import android.test.ActivityInstrumentationTestCase2;
import android.view.animation.AccelerateInterpolator;
import android.view.animation.AlphaAnimation;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.view.animation.GridLayoutAnimationController;
import android.view.animation.Interpolator;
import android.view.animation.LayoutAnimationController;

public class AnimationUtilsTest extends
        ActivityInstrumentationTestCase2<AnimationTestCtsActivity> {

    private AnimationTestCtsActivity mActivity;

    public AnimationUtilsTest() {
        super("com.android.cts.view", AnimationTestCtsActivity.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mActivity = (AnimationTestCtsActivity) getActivity();
    }

    public void testLoad() {
        // XML file of com.android.cts.view.R.anim.anim_alpha
        // <alpha xmlns:android="http://schemas.android.com/apk/res/android"
        //      android:interpolator="@android:anim/accelerate_interpolator"
        //      android:fromAlpha="0.0"
        //      android:toAlpha="1.0"
        //      android:duration="500" />
        int duration = 500;
        Animation animation = AnimationUtils.loadAnimation(mActivity, R.anim.anim_alpha);
        assertEquals(duration, animation.getDuration());
        assertTrue(animation instanceof AlphaAnimation);

        // Load Interpolator from android.R.anim.accelerate_interpolator
        Interpolator interpolator = AnimationUtils.loadInterpolator(mActivity,
                android.R.anim.accelerate_interpolator);
        assertTrue(interpolator instanceof AccelerateInterpolator);

        // Load LayoutAnimationController from com.android.cts.view.R.anim.anim_gridlayout
        // <gridLayoutAnimation xmlns:android="http://schemas.android.com/apk/res/android"
        //      android:delay="10%"
        //      android:rowDelay="50%"
        //      android:directionPriority="column"
        //      android:animation="@anim/anim_alpha" />
        LayoutAnimationController controller = AnimationUtils.loadLayoutAnimation(mActivity,
                R.anim.anim_gridlayout);
        assertTrue(controller instanceof GridLayoutAnimationController);
        assertEquals(duration, controller.getAnimation().getDuration());
        assertEquals(0.1f, controller.getDelay(), 0.001f);
    }

    public void testMakeAnimation() {
        Animation inAnimation = AnimationUtils.makeInAnimation(mActivity, true);
        assertNotNull(inAnimation);
        Animation outAnimation = AnimationUtils.makeOutAnimation(mActivity, true);
        assertNotNull(outAnimation);
        Animation bottomAnimation = AnimationUtils.makeInChildBottomAnimation(mActivity);
        assertNotNull(bottomAnimation);
        // TODO: How to assert these Animations.
    }

    public void testCurrentAnimationTimeMillis() {
        long time1 = AnimationUtils.currentAnimationTimeMillis();
        assertTrue(time1 > 0);

        long time2 = 0L;
        for (int i = 0; i < 1000 && time1 >= time2; i++) {
            time2 = AnimationUtils.currentAnimationTimeMillis();
            try {
                Thread.sleep(1);
            } catch (java.lang.InterruptedException e) {
            }
            assertTrue(time2 > 0);
        }
        assertTrue(time2 > time1);
    }
}