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/*******************************************************************************
* Copyright (c) 2010 Andrew Gvozdev and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Andrew Gvozdev (Quoin Inc.) - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.ui.tests.misc;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.net.URL;
import junit.framework.TestCase;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Path;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.IDecoration;
import org.eclipse.swt.graphics.Image;
import org.eclipse.cdt.ui.CDTSharedImages;
import org.eclipse.cdt.ui.CUIPlugin;
/**
* Tests for CDT shared images repository.
*/
public class CDTSharedImagesTests extends TestCase {
private static final ImageDescriptor MISSING_IMAGE_DESCRIPTOR = ImageDescriptor.getMissingImageDescriptor();
// sample image (IMG_OBJS_TUNIT) from CUIPlugin bundle
private static final String KEY_OBJS_TUNIT = CDTSharedImages.IMG_OBJS_TUNIT;
private static final IPath PATH_OBJS_TUNIT = new Path("icons/obj16/c_file_obj.gif");
private static final URL URL_OBJS_TUNIT = FileLocator.find(CUIPlugin.getDefault().getBundle(), PATH_OBJS_TUNIT,
null);
/**
* Handling of missing keys.
*/
public void testNoImage() throws Exception {
ImageDescriptor descriptor = CDTSharedImages.getImageDescriptor("missing key 1");
assertSame(MISSING_IMAGE_DESCRIPTOR, descriptor);
Image image1 = CDTSharedImages.getImage("missing key 1");
Image image2 = CDTSharedImages.getImage("missing key 2");
assertSame(image1, image2);
}
/**
* Test regular images.
*/
public void testImage() throws Exception {
// create descriptor from CDTSharedImages key
ImageDescriptor descriptorFromKey = CDTSharedImages.getImageDescriptor(KEY_OBJS_TUNIT);
assertNotSame(MISSING_IMAGE_DESCRIPTOR, descriptorFromKey);
// create descriptor from registered bundle URL as a key
CDTSharedImages.register(URL_OBJS_TUNIT);
ImageDescriptor descriptorFromUrl = CDTSharedImages.getImageDescriptor(URL_OBJS_TUNIT.toString());
assertNotSame(MISSING_IMAGE_DESCRIPTOR, descriptorFromUrl);
assertSame(descriptorFromKey, descriptorFromUrl);
// verify that it is the same image
Image imageFromKey = CDTSharedImages.getImage(KEY_OBJS_TUNIT);
Image imageFromUrl = CDTSharedImages.getImage(URL_OBJS_TUNIT.toString());
assertSame(imageFromKey, imageFromUrl);
// verify that no leaks on second access
Image imageFromKey2 = CDTSharedImages.getImage(KEY_OBJS_TUNIT);
assertSame(imageFromKey, imageFromKey2);
}
/**
* Test images with overlays.
*/
public void testOverlays() throws Exception {
{
Image image1 = CDTSharedImages.getImageOverlaid(KEY_OBJS_TUNIT, new String[5]);
Image image2 = CDTSharedImages.getImage(KEY_OBJS_TUNIT);
assertSame(image1, image2);
}
{
String[] overlayKeys = new String[5];
overlayKeys[IDecoration.BOTTOM_LEFT] = CDTSharedImages.IMG_OVR_WARNING;
Image imageOver1 = CDTSharedImages.getImageOverlaid(KEY_OBJS_TUNIT, overlayKeys);
Image imageOver2 = CDTSharedImages.getImageOverlaid(KEY_OBJS_TUNIT, CDTSharedImages.IMG_OVR_WARNING,
IDecoration.BOTTOM_LEFT);
Image imageOver3 = CDTSharedImages.getImageWithWarning(KEY_OBJS_TUNIT);
assertSame(imageOver1, imageOver2);
assertSame(imageOver1, imageOver3);
}
}
/**
* Verify that CDTSharedImages constants define existing images.
*/
public void testVerifyFields() throws Exception {
Class<CDTSharedImages> clazz = CDTSharedImages.class;
Field[] fields = clazz.getDeclaredFields();
for (Field field : fields) {
String name = field.getName();
if (name.startsWith("IMG_")) {
assertEquals("CDTSharedImages." + name + " is not a String", String.class, field.getType());
assertTrue("CDTSharedImages." + name + " is not a static field",
(field.getModifiers() & Modifier.STATIC) != 0);
assertTrue("CDTSharedImages." + name + " is not a public field",
(field.getModifiers() & Modifier.PUBLIC) != 0);
String imageKey = (String) field.get(null);
ImageDescriptor descriptor = CDTSharedImages.getImageDescriptor(imageKey);
assertTrue("Missing image CDTSharedImages." + name + "=\"" + imageKey + "\"",
descriptor != MISSING_IMAGE_DESCRIPTOR);
}
}
}
}
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