| /******************************************************************************* |
| * Copyright (c) 2014 Moritz Eysholdt and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Moritz Eysholdt <moritz.eysholdt@itemis.de> - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.junit4.runner; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| import org.junit.runner.Description; |
| import org.junit.runner.Runner; |
| import org.junit.runner.manipulation.Filter; |
| import org.junit.runner.manipulation.NoTestsRemainException; |
| |
| /** |
| * This filter keeps all matched {@link Description}s in a tree, including the children and |
| * container of the matched Description. |
| * |
| * It is allowed to match more than one Description. |
| */ |
| public class SubForestFilter extends Filter { |
| |
| private Set<Description> fIncluded= null; |
| |
| private final DescriptionMatcher fMatcher; |
| |
| public SubForestFilter(DescriptionMatcher matcher) { |
| fMatcher= matcher; |
| } |
| |
| @Override |
| public void apply(Object child) throws NoTestsRemainException { |
| if (child instanceof Runner && fIncluded == null) { |
| fIncluded= new HashSet<Description>(); |
| collectIncludedDescriptions(((Runner)child).getDescription()); |
| if (fIncluded.isEmpty()) |
| throw new NoTestsRemainException(); |
| } |
| super.apply(child); |
| } |
| |
| private boolean collectIncludedDescriptions(Description description) { |
| if (fMatcher.matches(description)) { |
| includeWithChildren(description); |
| return true; |
| } |
| boolean hasIncludedChild= false; |
| for (Description child : description.getChildren()) { |
| hasIncludedChild|= collectIncludedDescriptions(child); |
| } |
| if (hasIncludedChild) { |
| this.fIncluded.add(description); |
| } |
| return hasIncludedChild; |
| } |
| |
| @Override |
| public String describe() { |
| return fMatcher.toString(); |
| } |
| |
| public Set<Description> getIncludedDescriptions() { |
| return fIncluded; |
| } |
| |
| private void includeWithChildren(Description description) { |
| fIncluded.add(description); |
| for (Description child : description.getChildren()) { |
| includeWithChildren(child); |
| } |
| } |
| |
| @Override |
| public boolean shouldRun(Description description) { |
| return fIncluded.contains(description); |
| } |
| |
| } |