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.ant;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertFalse;
  import static org.junit.Assert.assertNotNull;
  import static org.junit.Assert.assertNull;
  import static org.junit.Assert.assertTrue;
  
  import java.io.BufferedReader;
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.OutputStreamWriter;
  import java.io.Reader;
  import java.io.Writer;
  import java.util.ArrayList;
  import java.util.List;
  
  import org.apache.tools.ant.types.Resource;
  import org.apache.tools.ant.types.resources.FileResource;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.rules.TemporaryFolder;
  
  /**
   * Unit tests for {@link AntResourcesLocator}.
   */
  public class AntResourcesLocatorTest {
  
  	@Rule
  	public final TemporaryFolder folder = new TemporaryFolder();
  
  	private AntResourcesLocator locator;
  
  	@Before
  	public void setup() {
  		locator = new AntResourcesLocator("UTF-8", 8);
  	}
  
  	@Test
  	public void testGetTabWidth() {
  		assertEquals(8, locator.getTabWidth());
  	}
  
  	@Test
  	public void testEmpty() {
  		assertTrue(locator.isEmpty());
  	}
  
  	@Test
  	public void testFile() throws IOException {
  		locator.add(createFile("org/jacoco/example/Test.java", "AAA"));
  
  		assertFalse(locator.isEmpty());
  		final Reader source = locator.getSourceFile("org/jacoco/example",
  				"Test.java");
  		assertContent("AAA", source);
  	}
  
  	@Test
  	public void testDirectory() throws IOException {
  		createFile("src/org/jacoco/example/Test.java", "AAA");
  		locator.add(new FileResource(folder.getRoot(), "src"));
  
  		assertFalse(locator.isEmpty());
  		final Reader source = locator.getSourceFile("org/jacoco/example",
  				"Test.java");
  		assertContent("AAA", source);
  	}
  
  	@Test
  	public void testFilePrecedence() throws IOException {
  		createFile("src/org/jacoco/example/Test.java", "DDD");
  		locator.add(new FileResource(folder.getRoot(), "src"));
  		locator.add(createFile("org/jacoco/example/Test.java", "FFF"));
  
  		final Reader source = locator.getSourceFile("org/jacoco/example",
  				"Test.java");
  		assertContent("FFF", source);
  	}
  
  	@Test
  	public void testDirectoryOrdering() throws IOException {
  		createFile("src1/org/jacoco/example/Test.java", "AAA");
  		locator.add(new FileResource(folder.getRoot(), "src1"));
  		createFile("src2/org/jacoco/example/Test.java", "BBB");
  		locator.add(new FileResource(folder.getRoot(), "src2"));
  		createFile("src3/org/jacoco/example/Test.java", "CCC");
  		locator.add(new FileResource(folder.getRoot(), "src3"));
  
  		final Reader source = locator.getSourceFile("org/jacoco/example",
  				"Test.java");
  		assertContent("AAA", source);
  	}
  
  	@Test
  	public void testAddAll() throws IOException {
  		List<Resource> resources = new ArrayList<Resource>();
  		resources.add(createFile("org/jacoco/example/Test1.java", "AAA"));
  		resources.add(createFile("org/jacoco/example/Test2.java", "BBB"));
  		locator.addAll(resources.iterator());
  
  		assertFalse(locator.isEmpty());
  		Reader source = locator.getSourceFile("org/jacoco/example",
  				"Test1.java");
  		assertContent("AAA", source);
  		source = locator.getSourceFile("org/jacoco/example", "Test2.java");
  		assertContent("BBB", source);
  	}
  
  	private Resource createFile(String path, String content) throws IOException {
  		final File file = new File(folder.getRoot(), path);
  		file.getParentFile().mkdirs();
  		final Writer writer = new OutputStreamWriter(
  				new FileOutputStream(file), "UTF-8");
  		writer.write(content);
  		writer.close();
  		return new FileResource(folder.getRoot(), path);
  	}
  
  	private void assertContent(String expected, Reader source)
  			throws IOException {
  		assertNotNull(source);
  		final BufferedReader buffer = new BufferedReader(source);
  		assertEquals(expected, buffer.readLine());
  		assertNull(buffer.readLine());
  		buffer.close();
  	}
  
  }
  