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/*******************************************************************************
* Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
* This program and the accompanying materials are made available under
* the terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Marc R. Hoffmann - initial API and implementation
*
*******************************************************************************/
package org.jacoco.report;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
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 org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
/**
* Unit tests for {@link DirectorySourceFileLocator}.
*/
public class DirectorySourceFileLocatorTest {
@Rule
public final TemporaryFolder sourceFolder = new TemporaryFolder();
private ISourceFileLocator locator;
@Before
public void setup() {
locator = new DirectorySourceFileLocator(sourceFolder.getRoot(),
"UTF-8", 4);
}
@Test
public void getSourceFile_should_return_null_when_source_does_not_exist()
throws IOException {
assertNull(locator.getSourceFile("org/jacoco/example",
"DoesNotExist.java"));
}
@Test
public void getSourceFile_should_return_null_when_source_is_folder()
throws IOException {
final File file = new File(sourceFolder.getRoot(),
"org/jacoco/example");
file.mkdirs();
assertNull(locator.getSourceFile("org/jacoco", "example"));
}
@Test
public void getSourceFile_should_return_content_when_file_exists()
throws IOException {
createFile("org/jacoco/example/Test.java");
final Reader source = locator.getSourceFile("org/jacoco/example",
"Test.java");
assertContent(source);
}
private void createFile(String path) throws IOException {
final File file = new File(sourceFolder.getRoot(), path);
file.getParentFile().mkdirs();
final Writer writer = new OutputStreamWriter(new FileOutputStream(file),
"UTF-8");
writer.write("Source");
writer.close();
}
private void assertContent(Reader source) throws IOException {
assertNotNull(source);
final BufferedReader buffer = new BufferedReader(source);
assertEquals("Source", buffer.readLine());
assertNull(buffer.readLine());
buffer.close();
}
}
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