content: /*******************************************************************************
   * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
   * 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:
   *    Marc R. Hoffmann - initial API and implementation
   *    
   *******************************************************************************/
  package org.jacoco.report;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.io.IOException;
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  
  import org.jacoco.core.analysis.IBundleCoverage;
  import org.jacoco.core.analysis.IPackageCoverage;
  import org.jacoco.core.data.ExecutionData;
  import org.jacoco.core.data.SessionInfo;
  import org.jacoco.core.internal.analysis.BundleCoverageImpl;
  import org.junit.Test;
  
  /**
   * Unit tests for {@link MultiReportVisitor}.
   */
  public class MultiReportVisitorTest {
  
  	private static class MockVisitor extends MockGroupVisitor implements
  			IReportVisitor {
  
  		MockVisitor() {
  			super("Report");
  		}
  
  		private boolean visitInfosCalled = false;
  
  		private boolean visitEndCalled = false;
  
  		public void visitInfo(List<SessionInfo> sessionInfos,
  				Collection<ExecutionData> executionData) throws IOException {
  			visitInfosCalled = true;
  		}
  
  		public void visitEnd() throws IOException {
  			visitEndCalled = true;
  		}
  
  		@Override
  		public String toString() {
  			assertTrue("visitInfos() has not been called", visitInfosCalled);
  			assertTrue("visitEnd() has not been called", visitEndCalled);
  			return super.toString();
  		}
  
  	}
  
  	private static class MockGroupVisitor implements IReportGroupVisitor {
  
  		private final String name;
  
  		private final List<MockGroupVisitor> children = new ArrayList<MockGroupVisitor>();
  
  		MockGroupVisitor(String name) {
  			this.name = name;
  		}
  
  		public void visitBundle(IBundleCoverage bundle,
  				ISourceFileLocator locator) throws IOException {
  			children.add(new MockGroupVisitor(bundle.getName()));
  		}
  
  		public IReportGroupVisitor visitGroup(String name) throws IOException {
  			MockGroupVisitor child = new MockGroupVisitor(name);
  			children.add(child);
  			return child;
  		}
  
  		@Override
  		public String toString() {
  			return name + children;
  		}
  	}
  
  	private IBundleCoverage createBundle(String name) {
  		final Collection<IPackageCoverage> packages = Collections.emptyList();
  		return new BundleCoverageImpl(name, packages);
  	}
  
  	private static final String MOCK_REPORT = "Report[g1[b1[], b2[]], g2[]]";
  
  	private void createMockReport(IReportVisitor visitor) throws IOException {
  		final List<SessionInfo> sessions = Collections.emptyList();
  		final List<ExecutionData> executionData = Collections.emptyList();
  		visitor.visitInfo(sessions, executionData);
  		IReportGroupVisitor g1 = visitor.visitGroup("g1");
  		g1.visitBundle(createBundle("b1"), null);
  		g1.visitBundle(createBundle("b2"), null);
  		visitor.visitGroup("g2");
  		visitor.visitEnd();
  	}
  
  	@Test
  	public void testMockFormatter() throws IOException {
  		MockVisitor visitor = new MockVisitor();
  		createMockReport(visitor);
  		assertEquals(MOCK_REPORT, visitor.toString());
  	}
  
  	@Test
  	public void testMultiFormatter() throws IOException {
  		IReportVisitor mock1 = new MockVisitor();
  		IReportVisitor mock2 = new MockVisitor();
  		IReportVisitor mock3 = new MockVisitor();
  		List<IReportVisitor> visitors = Arrays.asList(mock1, mock2, mock3);
  		MultiReportVisitor multi = new MultiReportVisitor(visitors);
  		createMockReport(multi);
  		assertEquals(MOCK_REPORT, mock1.toString());
  		assertEquals(MOCK_REPORT, mock2.toString());
  		assertEquals(MOCK_REPORT, mock3.toString());
  	}
  }
  