/*
 * Copyright 2014 Artem Chikin
 * Copyright 2014 Artem Herasymchuk
 * Copyright 2014 Tom Krywitsky
 * Copyright 2014 Henry Pabst
 * Copyright 2014 Bradley Simons
 * 
 * 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 ca.ualberta.cmput301w14t08.geochan.test;

import java.io.File;
import java.io.IOException;

import ca.ualberta.cmput301w14t08.geochan.activities.MainActivity;
import ca.ualberta.cmput301w14t08.geochan.helpers.ImageHelper;
import android.test.ActivityInstrumentationTestCase2;

/**
 * Tests our ImageHelper class.
 * @author Henry Pabst
 *
 */
public class ImageHelperTest extends ActivityInstrumentationTestCase2<MainActivity> {

    public ImageHelperTest() {
        super(MainActivity.class);
    }
    
    protected void setUp() throws Exception {
        super.setUp();
    }
    
    public void testConstruction() {
        ImageHelper imageHelper = new ImageHelper();
        assertNotNull(imageHelper);
    }

    /**
     * Test that files can be created
     */
    public void testFileCreation() {
        try {
            File file = ImageHelper.createImageFile();
            assertNotNull(file);
        } catch (IOException e) {
            fail("IO Exception");
        }
    }
    
    /**
     * Tests that filenames are saved properly.
     */
    public void testUniqueFileNames() {
        try {
            File file = ImageHelper.createImageFile();
            try {
                //Image file names are unique when generated > 1 second apart
                Thread.sleep(2000);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            File file2 = ImageHelper.createImageFile();
            String filename1 = file.getName();
            String filename2 = file2.getName();
            
            assertFalse(filename1.equals(filename2));
        } catch (IOException e) {
            // Ignore
        }
    }
    
}