1 files changed, 22 insertions, 10 deletions

diff --git a/org.jacoco.report.test/src/org/jacoco/report/DirectorySourceFileLocatorTest.java b/org.jacoco.report.test/src/org/jacoco/report/DirectorySourceFileLocatorTest.java
index a93e5c3a..b8eea850 100644
--- a/org.jacoco.report.test/src/org/jacoco/report/DirectorySourceFileLocatorTest.java
+++ b/org.jacoco.report.test/src/org/jacoco/report/DirectorySourceFileLocatorTest.java
@@ -1,13 +1,14 @@
 /*******************************************************************************
- * 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
+ * Copyright (c) 2009, 2021 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;
 
@@ -45,13 +46,24 @@ public class DirectorySourceFileLocatorTest {
 	}
 
 	@Test
-	public void testGetSourceFileNegative() throws IOException {
+	public void getSourceFile_should_return_null_when_source_does_not_exist()
+			throws IOException {
 		assertNull(locator.getSourceFile("org/jacoco/example",
 				"DoesNotExist.java"));
 	}
 
 	@Test
-	public void testGetSourceFile() throws IOException {
+	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");
@@ -61,8 +73,8 @@ public class DirectorySourceFileLocatorTest {
 	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");
+		final Writer writer = new OutputStreamWriter(new FileOutputStream(file),
+				"UTF-8");
 		writer.write("Source");
 		writer.close();
 	}