PackWriterTest: Open TestRepository in try-with-resource

Change-Id: Ia4202c860b851bef5db72ea6781b3e6a32484e08
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

org.eclipse.jgit.test/tst/org/eclipse/jgit/internal/storage/file/PackWriterTest.java

@@ -469,10 +469,12 @@ public class PackWriterTest extends SampleDataRepositoryTestCase {
 	public void testDeltaStatistics() throws Exception {
 		config.setDeltaCompress(true);
 		FileRepository repo = createBareRepository();
-		TestRepository<FileRepository> testRepo = new TestRepository<>(repo);
 		ArrayList<RevObject> blobs = new ArrayList<>();
+		try (TestRepository<FileRepository> testRepo = new TestRepository<>(
+				repo)) {
 			blobs.add(testRepo.blob(genDeltableData(1000)));
 			blobs.add(testRepo.blob(genDeltableData(1005)));
+		}
 
 		try (PackWriter pw = new PackWriter(repo)) {
 			NullProgressMonitor m = NullProgressMonitor.INSTANCE;
@@ -535,26 +537,24 @@ public class PackWriterTest extends SampleDataRepositoryTestCase {
 	public void testExclude() throws Exception {
 		FileRepository repo = createBareRepository();
 
-		TestRepository<FileRepository> testRepo = new TestRepository<>(
-				repo);
+		try (TestRepository<FileRepository> testRepo = new TestRepository<>(
+				repo)) {
 			BranchBuilder bb = testRepo.branch("refs/heads/master");
 			contentA = testRepo.blob("A");
 			c1 = bb.commit().add("f", contentA).create();
 			testRepo.getRevWalk().parseHeaders(c1);
 			PackIndex pf1 = writePack(repo, wants(c1), EMPTY_ID_SET);
-		assertContent(
-				pf1,
-				Arrays.asList(c1.getId(), c1.getTree().getId(),
+			assertContent(pf1, Arrays.asList(c1.getId(), c1.getTree().getId(),
 					contentA.getId()));
 			contentB = testRepo.blob("B");
 			c2 = bb.commit().add("f", contentB).create();
 			testRepo.getRevWalk().parseHeaders(c2);
-		PackIndex pf2 = writePack(repo, wants(c2), Sets.of((ObjectIdSet) pf1));
-		assertContent(
-				pf2,
-				Arrays.asList(c2.getId(), c2.getTree().getId(),
+			PackIndex pf2 = writePack(repo, wants(c2),
+					Sets.of((ObjectIdSet) pf1));
+			assertContent(pf2, Arrays.asList(c2.getId(), c2.getTree().getId(),
 					contentB.getId()));
 		}
+	}
 
 	private static void assertContent(PackIndex pi, List<ObjectId> expected) {
 		assertEquals("Pack index has wrong size.", expected.size(),
@@ -660,7 +660,7 @@ public class PackWriterTest extends SampleDataRepositoryTestCase {
 
 	private FileRepository setupRepoForShallowFetch() throws Exception {
 		FileRepository repo = createBareRepository();
-		TestRepository<Repository> r = new TestRepository<>(repo);
+		try (TestRepository<Repository> r = new TestRepository<>(repo)) {
 			BranchBuilder bb = r.branch("refs/heads/master");
 			contentA = r.blob("A");
 			contentB = r.blob("B");
@@ -675,6 +675,7 @@ public class PackWriterTest extends SampleDataRepositoryTestCase {
 			r.getRevWalk().parseHeaders(c5); // fully initialize the tip RevCommit
 			return repo;
 		}
+	}
 
 	private static PackIndex writePack(FileRepository repo,
 			Set<? extends ObjectId> want, Set<ObjectIdSet> excludeObjects)