Added test: Replace an existing, shortened, empty directory

Author: JaniruTEC

src/test/java/org/cryptomator/cryptofs/CryptoFileSystemProviderIntegrationTest.java

@@ -630,6 +630,23 @@ public void testReplaceExistingShortenedFile() throws IOException {
 			}
 		}
 
+		/* //TODO https://github.com/cryptomator/cryptofs/issues/176
+		@Test
+		@DisplayName("Replace an existing, shortened, empty directory")
+		public void testReplaceExistingShortenedDirEmpty() throws IOException {
+			try (var fs = setupCryptoFs(50, 100, false)) {
+				var dirName50Chars = "/target_89_123456789_123456789_123456789_123456789_"; //since filename encryption increases filename length, 50 cleartext chars are sufficient
+				var source = fs.getPath("/sourceDir");
+				var target = fs.getPath(dirName50Chars);
+				Files.createDirectory(source);
+				Files.createDirectory(target);
+
+				Assertions.assertDoesNotThrow(() -> Files.move(source, target, REPLACE_EXISTING));
+				Assertions.assertTrue(Files.notExists(source));
+				Assertions.assertTrue(Files.exists(target));
+			}
+		}*/
+
 		private FileSystem setupCryptoFs(int ciphertextShorteningThreshold, int maxCleartextFilename, boolean readonly) throws IOException {
 			byte[] key = new byte[64];
 			Arrays.fill(key, (byte) 0x55);