CommitAndLogCommandTests: add a test for LogCommand.addRange()

There were also some compiler warning due to empty catch blocks that
were fixed.

Change-Id: I165bcddcdfacd34f020d1b938a41954916eb106e
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/api/CommitAndLogCommandTests.java

@@ -53,6 +53,8 @@ import org.eclipse.jgit.api.errors.NoFilepatternException;
 import org.eclipse.jgit.api.errors.NoHeadException;
 import org.eclipse.jgit.api.errors.NoMessageException;
 import org.eclipse.jgit.api.errors.WrongRepositoryStateException;
+import org.eclipse.jgit.errors.IncorrectObjectTypeException;
+import org.eclipse.jgit.errors.MissingObjectException;
 import org.eclipse.jgit.errors.UnmergedPathException;
 import org.eclipse.jgit.lib.Constants;
 import org.eclipse.jgit.lib.ObjectId;
@@ -105,6 +107,7 @@ public class CommitAndLogCommandTests extends RepositoryTestCase {
 			git.commit().setAuthor(author).call();
 			fail("Didn't get the expected exception");
 		} catch (NoMessageException e) {
+			// expected
 		}
 	}
 
@@ -122,6 +125,7 @@ public class CommitAndLogCommandTests extends RepositoryTestCase {
 			commitCmd.setAuthor(author);
 			fail("didn't catch the expected exception");
 		} catch (IllegalStateException e) {
+			// expected
 		}
 		LogCommand logCmd = git.log();
 		logCmd.call();
@@ -130,6 +134,7 @@ public class CommitAndLogCommandTests extends RepositoryTestCase {
 			logCmd.call();
 			fail("didn't catch the expected exception");
 		} catch (IllegalStateException e) {
+			// expected
 		}
 	}
 
@@ -191,4 +196,39 @@ public class CommitAndLogCommandTests extends RepositoryTestCase {
 		assertEquals("db00fd65b218578127ea51f3dffac701f12f486a",
 				tw.getObjectId(0).getName());
 	}
+
+	public void testCommitRange() throws NoHeadException, NoMessageException,
+			UnmergedPathException, ConcurrentRefUpdateException,
+			JGitInternalException, WrongRepositoryStateException,
+			IncorrectObjectTypeException, MissingObjectException {
+		// do 4 commits and set the range to the second and fourth one
+		Git git = new Git(db);
+		git.commit().setMessage("first commit").call();
+		RevCommit second = git.commit().setMessage("second commit")
+				.setCommitter(committer).call();
+		git.commit().setMessage("third commit").setAuthor(author).call();
+		RevCommit last = git.commit().setMessage("fourth commit").setAuthor(
+				author)
+				.setCommitter(committer).call();
+		Iterable<RevCommit> commits = git.log().addRange(second.getId(),
+				last.getId()).call();
+
+		// check that we have the third and fourth commit
+		PersonIdent defaultCommitter = new PersonIdent(db);
+		PersonIdent expectedAuthors[] = new PersonIdent[] { author, author };
+		PersonIdent expectedCommitters[] = new PersonIdent[] {
+				defaultCommitter, committer };
+		String expectedMessages[] = new String[] { "third commit",
+				"fourth commit" };
+		int l = expectedAuthors.length - 1;
+		for (RevCommit c : commits) {
+			assertEquals(expectedAuthors[l].getName(), c.getAuthorIdent()
+					.getName());
+			assertEquals(expectedCommitters[l].getName(), c.getCommitterIdent()
+					.getName());
+			assertEquals(c.getFullMessage(), expectedMessages[l]);
+			l--;
+		}
+		assertEquals(l, -1);
+	}
 }