fix bug in isChild method and added isEmpty method to IOUtil

scm-core/src/test/java/sonia/scm/util/IOUtilTest.java

@@ -0,0 +1,109 @@
+/**
+ * Copyright (c) 2010, Sebastian Sdorra All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer. 2. Redistributions in
+ * binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other
+ * materials provided with the distribution. 3. Neither the name of SCM-Manager;
+ * nor the names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * http://bitbucket.org/sdorra/scm-manager
+ *
+ */
+
+
+
+package sonia.scm.util;
+
+//~--- non-JDK imports --------------------------------------------------------
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+import static org.mockito.Mockito.*;
+
+//~--- JDK imports ------------------------------------------------------------
+
+import java.io.File;
+import java.io.IOException;
+
+/**
+ *
+ * @author Sebastian Sdorra
+ */
+public class IOUtilTest
+{
+
+  /**
+   * Method description
+   *
+   *
+   * @throws IOException
+   */
+  @Test
+  public void testIsChild() throws IOException
+  {
+    assertTrue(isChild("/tmp/test", "/tmp/test/a"));
+    assertTrue(isChild("/tmp/test", "/tmp/test/a/b"));
+    assertTrue(isChild("/tmp/test", "/tmp/test/a/b/c"));
+    assertFalse(isChild("/tmp/test", "/tmp/test"));
+    assertFalse(isChild("/tmp/test", "/tmp"));
+    assertFalse(isChild("/tmp/test", "/"));
+    assertFalse(isChild("/tmp/test", "/asd"));
+    assertFalse(isChild("/tmp/test", "/asd/a/b"));
+  }
+
+  /**
+   * Method description
+   *
+   *
+   * @param canonicalPath
+   *
+   * @return
+   *
+   * @throws IOException
+   */
+  private File createMockFile(String canonicalPath) throws IOException
+  {
+    File file = mock(File.class);
+
+    when(file.getCanonicalPath()).thenReturn(canonicalPath);
+
+    return file;
+  }
+
+  //~--- get methods ----------------------------------------------------------
+
+  /**
+   * Method description
+   *
+   *
+   * @param parentPath
+   * @param path
+   *
+   * @return
+   *
+   * @throws IOException
+   */
+  private boolean isChild(String parentPath, String path) throws IOException
+  {
+    return IOUtil.isChild(createMockFile(parentPath), createMockFile(path));
+  }
+}