1 files changed, 90 insertions, 0 deletions
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/PackSourceTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/PackSourceTest.java
new file mode 100644
index 0000000000..7bf1f587f8
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/dfs/PackSourceTest.java
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2018, Google LLC.
+ * 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.internal.storage.dfs;
+
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.COMPACT;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.DEFAULT_COMPARATOR;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.GC;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.GC_REST;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.GC_TXN;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.INSERT;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.RECEIVE;
+import static org.eclipse.jgit.internal.storage.dfs.DfsObjDatabase.PackSource.UNREACHABLE_GARBAGE;
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class PackSourceTest {
+	@Test
+	public void defaultComaprator() throws Exception {
+		assertEquals(0, DEFAULT_COMPARATOR.compare(INSERT, INSERT));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(RECEIVE, RECEIVE));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(COMPACT, COMPACT));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(GC, GC));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(GC_REST, GC_REST));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(GC_TXN, GC_TXN));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(UNREACHABLE_GARBAGE, UNREACHABLE_GARBAGE));
+
+		assertEquals(0, DEFAULT_COMPARATOR.compare(INSERT, RECEIVE));
+		assertEquals(0, DEFAULT_COMPARATOR.compare(RECEIVE, INSERT));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(INSERT, COMPACT));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(COMPACT, INSERT));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(RECEIVE, COMPACT));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(COMPACT, RECEIVE));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(COMPACT, GC));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(GC, COMPACT));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(GC, GC_REST));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(GC_REST, GC));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(GC_REST, GC_TXN));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(GC_TXN, GC_REST));
+
+		assertEquals(-1, DEFAULT_COMPARATOR.compare(GC_TXN, UNREACHABLE_GARBAGE));
+		assertEquals(1, DEFAULT_COMPARATOR.compare(UNREACHABLE_GARBAGE, GC_TXN));
+	}
+}