Add command support for listing stashed commits

Bug: 309355
Change-Id: I34a8c251b89abcdb67565ca49bee02e5e2113593
Signe-off-by: Chris Aniszczyk <zx@twitter.com>

1 files changed, 136 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StashListCommandTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StashListCommandTest.java
new file mode 100644
index 0000000000..8d7ecada17
--- /dev/null
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/api/StashListCommandTest.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2011, GitHub Inc.
+ * 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.api;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+import org.eclipse.jgit.lib.Constants;
+import org.eclipse.jgit.lib.RefUpdate;
+import org.eclipse.jgit.lib.RefUpdate.Result;
+import org.eclipse.jgit.lib.RepositoryTestCase;
+import org.eclipse.jgit.revwalk.RevCommit;
+import org.junit.Test;
+
+/**
+ * Unit tests of {@link StashListCommand}
+ */
+public class StashListCommandTest extends RepositoryTestCase {
+
+	@Test
+	public void noStashRef() throws Exception {
+		StashListCommand command = Git.wrap(db).stashList();
+		Collection<RevCommit> stashed = command.call();
+		assertNotNull(stashed);
+		assertTrue(stashed.isEmpty());
+	}
+
+	@Test
+	public void emptyStashReflog() throws Exception {
+		Git git = Git.wrap(db);
+		writeTrashFile("file.txt", "content");
+		git.add().addFilepattern("file.txt").call();
+		RevCommit commit = git.commit().setMessage("create file").call();
+
+		RefUpdate update = db.updateRef(Constants.R_STASH);
+		update.setNewObjectId(commit);
+		update.disableRefLog();
+		assertEquals(Result.NEW, update.update());
+
+		StashListCommand command = Git.wrap(db).stashList();
+		Collection<RevCommit> stashed = command.call();
+		assertNotNull(stashed);
+		assertTrue(stashed.isEmpty());
+	}
+
+	@Test
+	public void singleStashedCommit() throws Exception {
+		Git git = Git.wrap(db);
+		writeTrashFile("file.txt", "content");
+		git.add().addFilepattern("file.txt").call();
+		RevCommit commit = git.commit().setMessage("create file").call();
+
+		RefUpdate update = db.updateRef(Constants.R_STASH);
+		update.setNewObjectId(commit);
+		assertEquals(Result.NEW, update.update());
+
+		StashListCommand command = git.stashList();
+		Collection<RevCommit> stashed = command.call();
+		assertNotNull(stashed);
+		assertEquals(1, stashed.size());
+		assertEquals(commit, stashed.iterator().next());
+	}
+
+	@Test
+	public void multipleStashedCommits() throws Exception {
+		Git git = Git.wrap(db);
+
+		writeTrashFile("file.txt", "content");
+		git.add().addFilepattern("file.txt").call();
+		RevCommit commit1 = git.commit().setMessage("create file").call();
+
+		writeTrashFile("file.txt", "content2");
+		git.add().addFilepattern("file.txt").call();
+		RevCommit commit2 = git.commit().setMessage("edit file").call();
+
+		RefUpdate create = db.updateRef(Constants.R_STASH);
+		create.setNewObjectId(commit1);
+		assertEquals(Result.NEW, create.update());
+
+		RefUpdate update = db.updateRef(Constants.R_STASH);
+		update.setNewObjectId(commit2);
+		assertEquals(Result.FAST_FORWARD, update.update());
+
+		StashListCommand command = git.stashList();
+		Collection<RevCommit> stashed = command.call();
+		assertNotNull(stashed);
+		assertEquals(2, stashed.size());
+		Iterator<RevCommit> iter = stashed.iterator();
+		assertEquals(commit2, iter.next());
+		assertEquals(commit1, iter.next());
+	}
+}