4.10 - Recursive temp folders

acknowledgements.txt

@@ -103,3 +103,6 @@
 2011 Jun 24
      Samuel Le Berrigaud (sleberrigaud@github): Report for GH-248:
             protected BlockJUnit4ClassRunner#rules method removed from 4.8.2
+
+2011 Aug 10
+     rodolfoliviero@github and JoseRibeiro@github: feature to create recursive temporary folders.

src/main/java/org/junit/rules/TemporaryFolder.java

@@ -59,9 +59,12 @@ public File newFile(String fileName) throws IOException {
 	/**
 	 * Returns a new fresh folder with the given name under the temporary folder.
 	 */
-	public File newFolder(String folderName) {
-		File file= new File(folder, folderName);
-		file.mkdir();
+	public File newFolder(String... folderNames) {
+		File file = folder;
+		for (String folderName : folderNames) {
+			file = new File(file, folderName);
+			file.mkdir();
+		}
 		return file;
 	}
 

src/test/java/org/junit/tests/experimental/rules/TempFolderRuleTest.java

@@ -39,9 +39,36 @@ public static class CreatesSubFolder {
 
 		@Test
 		public void testUsingTempFolder() throws IOException {
-			createdFile= folder.newFolder("subfolder");
-			new File(createdFile, "a.txt").createNewFile();
-			assertTrue(createdFile.exists());
+			String subfolder = "subfolder";
+			String filename = "a.txt";
+			createdFile= folder.newFolder(subfolder);
+			new File(createdFile, filename).createNewFile();
+
+			File expectedFile = new File(folder.getRoot(), join(subfolder, filename));
+
+			assertTrue(expectedFile.exists());
+		}
+
+		@Test
+		public void testUsingTempTreeFolders() throws IOException {
+			String subfolder = "subfolder";
+			String anotherfolder = "anotherfolder";
+			String filename = "a.txt";
+
+			createdFile = folder.newFolder(subfolder, anotherfolder);
+			new File(createdFile, filename).createNewFile();
+
+			File expectedFile = new File(folder.getRoot(), join(subfolder, anotherfolder, filename));
+
+			assertTrue(expectedFile.exists());
+		}
+
+		private String join(String... folderNames) {
+			StringBuilder path = new StringBuilder();
+			for (String folderName : folderNames) {
+				path.append(File.separator).append(folderName);
+			}
+			return path.toString();
 		}
 	}