1 files changed, 109 insertions, 0 deletions
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/DateRevPriorityQueueTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/DateRevPriorityQueueTest.java
new file mode 100644
index 0000000000..369e2fae72
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/revwalk/DateRevPriorityQueueTest.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2023, GerritForge Inc. and others
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Distribution License v. 1.0 which is available at
+ * https://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+package org.eclipse.jgit.revwalk;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Test;
+
+public class DateRevPriorityQueueTest extends RevQueueTestCase<DateRevPriorityQueue> {
+	@Override
+	protected DateRevPriorityQueue create() {
+		return new DateRevPriorityQueue();
+	}
+
+	@Override
+	@Test
+	public void testEmpty() throws Exception {
+		super.testEmpty();
+		assertNull(q.peek());
+		assertEquals(Generator.SORT_COMMIT_TIME_DESC, q.outputType());
+	}
+
+	@Test
+	public void testCloneEmpty() throws Exception {
+		q = new DateRevPriorityQueue(AbstractRevQueue.EMPTY_QUEUE);
+		assertNull(q.next());
+	}
+
+	@Test
+	public void testInsertOutOfOrder() throws Exception {
+		final RevCommit a = parseBody(commit());
+		final RevCommit b = parseBody(commit(10, a));
+		final RevCommit c1 = parseBody(commit(5, b));
+		final RevCommit c2 = parseBody(commit(-50, b));
+
+		q.add(c2);
+		q.add(a);
+		q.add(b);
+		q.add(c1);
+
+		assertCommit(c1, q.next());
+		assertCommit(b, q.next());
+		assertCommit(a, q.next());
+		assertCommit(c2, q.next());
+		assertNull(q.next());
+	}
+
+	@Test
+	public void testInsertTie() throws Exception {
+		final RevCommit a = parseBody(commit());
+		final RevCommit b = parseBody(commit(0, a));
+		final RevCommit c = parseBody(commit(0, b));
+
+		{
+			q = create();
+			q.add(a);
+			q.add(b);
+			q.add(c);
+
+			assertCommit(a, q.next());
+			assertCommit(b, q.next());
+			assertCommit(c, q.next());
+			assertNull(q.next());
+		}
+		{
+			q = create();
+			q.add(c);
+			q.add(b);
+			q.add(a);
+
+			assertCommit(c, q.next());
+			assertCommit(b, q.next());
+			assertCommit(a, q.next());
+			assertNull(q.next());
+		}
+	}
+
+	@Test
+	public void testCloneFIFO() throws Exception {
+		final RevCommit a = parseBody(commit());
+		final RevCommit b = parseBody(commit(200, a));
+		final RevCommit c = parseBody(commit(200, b));
+
+		final FIFORevQueue src = new FIFORevQueue();
+		src.add(a);
+		src.add(b);
+		src.add(c);
+
+		q = new DateRevPriorityQueue(src);
+		assertFalse(q.everbodyHasFlag(RevWalk.UNINTERESTING));
+		assertFalse(q.anybodyHasFlag(RevWalk.UNINTERESTING));
+		assertCommit(c, q.peek());
+		assertCommit(c, q.peek());
+
+		assertCommit(c, q.next());
+		assertCommit(b, q.next());
+		assertCommit(a, q.next());
+		assertNull(q.next());
+	}
+}