Class AssetsTest

src/test/AssetsTest.java:28–150

Test the zip asset loader API. @author Wolfgang Christian

 *
 */
@SuppressWarnings("serial")
public class AssetsTest extends Test_ {

	static {
		
		// This declaration ensures OSPRuntime has been run, as
		// it is where the assets are defined.
		if (OSPRuntime.isJS) {
			OSPLog.debug("assets=" + Assets.getInstance().toString());			
		}
		
	}

	AssetsTest() {
		if (!OSPRuntime.isJS) {
			System.out.println("Assets are JavaScript only now.");
			System.exit(0);
		}
		// test that an image that is NOT in the zip file can be loaded directly.
		String imageName = "org/opensourcephysics/resources/cover.gif";
		URL url = Assets.getURLFromPath(imageName, true);
		if (url == null) {
			OSPLog.debug(imageName + " was not found in an asset ZIP file");
			url = Assets.getURLFromPath(imageName, false);
		}
		System.out.println("url=" + url);
		if (url != null) {
			ImageIcon icon = new ImageIcon(url);
			JFrame frame = new JFrame("Asset Loader Example");
			IconPanel imagePanel = new IconPanel(icon);
			imagePanel.setLayout(new BorderLayout());
			frame.add(imagePanel);
			frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			frame.setSize(400, 400);
			frame.setVisible(true);
		}

		// Test that we can get the ZipEntry list.
		getFileList("osp-assets.zip");

		// Test that we can get the bytes for cover.gif, which is not in the zip file
		byte[] bytes = Assets.getURLContents(url);

		String magic = new String(new byte[] { bytes[0], bytes[1], bytes[2], bytes[3] });
		OSPLog.debug("\n\n" + magic + " " + bytes.length);

		// Test that we can get the bytes for a file that is NOT in the zip file 	
		bytes = Assets.getAssetBytes(imageName);
		assert(bytes.length == 30189);

		// Test that we can get the bytes for a file that is in the zip file 	
		bytes = Assets.getAssetBytes("org/opensourcephysics/resources/display/drawing_tools.xml");
		assert(bytes.length == 964);
		
		// test with file name space
		url = Assets.getURLFromPath("test/spacetest.zip!/Car in a loop with friction.trk");
		bytes = Assets.getURLContents(url);
		assert(bytes.length == 50356);