Subversion Repositories SmartDukaan

/*

 * Copyright (C) 2015 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.volley.toolbox;

import android.graphics.Bitmap;

import android.widget.ImageView;

import com.android.volley.Request;

import com.android.volley.RequestQueue;

import org.junit.Assert;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.robolectric.RobolectricTestRunner;

import static org.junit.Assert.assertNotNull;

import static org.mockito.Mockito.any;

import static org.mockito.Mockito.anyString;

import static org.mockito.Mockito.eq;

import static org.mockito.Mockito.mock;

import static org.mockito.Mockito.times;

import static org.mockito.Mockito.verify;

import static org.mockito.Mockito.when;

@RunWith(RobolectricTestRunner.class)

public class ImageLoaderTest {

    private RequestQueue mRequestQueue;

    private ImageLoader.ImageCache mImageCache;

    private ImageLoader mImageLoader;

    @Before

    public void setUp() {

        mRequestQueue = mock(RequestQueue.class);

        mImageCache = mock(ImageLoader.ImageCache.class);

        mImageLoader = new ImageLoader(mRequestQueue, mImageCache);

    }

    @Test

    public void isCachedChecksCache() throws Exception {

        when(mImageCache.getBitmap(anyString())).thenReturn(null);

        Assert.assertFalse(mImageLoader.isCached("http://foo", 0, 0));

    }

    @Test

    public void getWithCacheHit() throws Exception {

        Bitmap bitmap = Bitmap.createBitmap(1, 1, null);

        ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);

        when(mImageCache.getBitmap(anyString())).thenReturn(bitmap);

        ImageLoader.ImageContainer ic = mImageLoader.get("http://foo", listener);

        Assert.assertSame(bitmap, ic.getBitmap());

        verify(listener).onResponse(ic, true);

    }

    @Test

    public void getWithCacheMiss() throws Exception {

        when(mImageCache.getBitmap(anyString())).thenReturn(null);

        ImageLoader.ImageListener listener = mock(ImageLoader.ImageListener.class);

        // Ask for the image to be loaded.

        mImageLoader.get("http://foo", listener);

        // Second pass to test deduping logic.

        mImageLoader.get("http://foo", listener);

        // Response callback should be called both times.

        verify(listener, times(2)).onResponse(any(ImageLoader.ImageContainer.class), eq(true));

        // But request should be enqueued only once.

        verify(mRequestQueue, times(1)).add(any(Request.class));

    }

    @Test

    public void publicMethods() throws Exception {

        // Catch API breaking changes.

        ImageLoader.getImageListener(null, -1, -1);

        mImageLoader.setBatchedResponseDelay(1000);

        assertNotNull(ImageLoader.class.getConstructor(RequestQueue.class,

                ImageLoader.ImageCache.class));

        assertNotNull(ImageLoader.class.getMethod("getImageListener", ImageView.class,

                int.class, int.class));

        assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class));

        assertNotNull(ImageLoader.class.getMethod("isCached", String.class, int.class, int.class,

                ImageView.ScaleType.class));

        assertNotNull(ImageLoader.class.getMethod("get", String.class,

                ImageLoader.ImageListener.class));

        assertNotNull(ImageLoader.class.getMethod("get", String.class,

                ImageLoader.ImageListener.class, int.class, int.class));

        assertNotNull(ImageLoader.class.getMethod("get", String.class,

                ImageLoader.ImageListener.class, int.class, int.class, ImageView.ScaleType.class));

        assertNotNull(ImageLoader.class.getMethod("setBatchedResponseDelay", int.class));

        assertNotNull(ImageLoader.ImageListener.class.getMethod("onResponse",

                ImageLoader.ImageContainer.class, boolean.class));

    }

}