1 files changed, 108 insertions, 0 deletions
diff --git a/org.eclipse.jgit.test/src/org/eclipse/jgit/events/ChangeRecorder.java b/org.eclipse.jgit.test/src/org/eclipse/jgit/events/ChangeRecorder.java
new file mode 100644
index 0000000000..c5582a8601
--- /dev/null
+++ b/org.eclipse.jgit.test/src/org/eclipse/jgit/events/ChangeRecorder.java
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017, Thomas Wolf <thomas.wolf@paranor.ch>
+ * and other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Distribution License v1.0 which
+ * accompanies this distribution, is reproduced below, and is
+ * available at http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - 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.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. 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 COPYRIGHT OWNER 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.
+ */
+
+package org.eclipse.jgit.events;
+
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+
+/**
+ * A {@link WorkingTreeModifiedListener} that can be used in tests to check
+ * expected events.
+ */
+public class ChangeRecorder implements WorkingTreeModifiedListener {
+
+	public static final String[] EMPTY = new String[0];
+
+	private Set<String> modified = new HashSet<>();
+
+	private Set<String> deleted = new HashSet<>();
+
+	private int eventCount;
+
+	@Override
+	public void onWorkingTreeModified(WorkingTreeModifiedEvent event) {
+		eventCount++;
+		modified.removeAll(event.getDeleted());
+		deleted.removeAll(event.getModified());
+		modified.addAll(event.getModified());
+		deleted.addAll(event.getDeleted());
+	}
+
+	private String[] getModified() {
+		return modified.toArray(new String[modified.size()]);
+	}
+
+	private String[] getDeleted() {
+		return deleted.toArray(new String[deleted.size()]);
+	}
+
+	private void reset() {
+		eventCount = 0;
+		modified.clear();
+		deleted.clear();
+	}
+
+	public void assertNoEvent() {
+		assertEquals("Unexpected WorkingTreeModifiedEvent ", 0, eventCount);
+	}
+
+	public void assertEvent(String[] expectedModified,
+			String[] expectedDeleted) {
+		String[] actuallyModified = getModified();
+		String[] actuallyDeleted = getDeleted();
+		Arrays.sort(actuallyModified);
+		Arrays.sort(expectedModified);
+		Arrays.sort(actuallyDeleted);
+		Arrays.sort(expectedDeleted);
+		assertArrayEquals("Unexpected modifications reported", expectedModified,
+				actuallyModified);
+		assertArrayEquals("Unexpected deletions reported", expectedDeleted,
+				actuallyDeleted);
+		reset();
+	}
+}