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1   /*
2    * Copyright (C) 2019, Google LLC. and others
3    *
4    * This program and the accompanying materials are made available under the
5    * terms of the Eclipse Distribution License v. 1.0 which is available at
6    * https://www.eclipse.org/org/documents/edl-v10.php.
7    *
8    * SPDX-License-Identifier: BSD-3-Clause
9    */
10  package org.eclipse.jgit.internal.storage.dfs;
11  
12  import static org.junit.Assert.assertEquals;
13  import static org.junit.Assert.assertTrue;
14  
15  import java.util.Set;
16  
17  import org.eclipse.jgit.junit.TestRepository;
18  import org.eclipse.jgit.lib.ObjectIdRef;
19  import org.eclipse.jgit.lib.Ref;
20  import org.eclipse.jgit.lib.Ref.Storage;
21  import org.eclipse.jgit.revwalk.RevCommit;
22  import org.eclipse.jgit.revwalk.RevTag;
23  import org.junit.Test;
24  
25  public class InMemoryRepositoryTest {
26  
27  	@Test
28  	public void keepUpdateIndexPeelingTag() throws Exception {
29  		InMemoryRepository repo = new InMemoryRepository(
30  				new DfsRepositoryDescription());
31  		try (TestRepository<InMemoryRepository> git = new TestRepository<>(
32  				repo)) {
33  			RevCommit commit = git.branch("master").commit()
34  					.message("first commit").create();
35  			RevTag tag = git.tag("v0.1", commit);
36  			git.update("refs/tags/v0.1", tag);
37  
38  			Ref unpeeledTag = new ObjectIdRef.Unpeeled(Storage.LOOSE,
39  					"refs/tags/v0.1", tag.getId(), 1000);
40  
41  			Ref peeledTag = repo.getRefDatabase().peel(unpeeledTag);
42  			assertTrue(peeledTag instanceof ObjectIdRef.PeeledTag);
43  			assertEquals(1000, peeledTag.getUpdateIndex());
44  		}
45  	}
46  
47  	@Test
48  	public void keepUpdateIndexPeelingNonTag() throws Exception {
49  		InMemoryRepository repo = new InMemoryRepository(
50  				new DfsRepositoryDescription());
51  		try (TestRepository<InMemoryRepository> git = new TestRepository<>(
52  				repo)) {
53  			RevCommit commit = git.branch("master").commit()
54  					.message("first commit").create();
55  
56  			Ref unpeeledRef = new ObjectIdRef.Unpeeled(Storage.LOOSE,
57  					"refs/heads/master", commit.getId(), 1000);
58  			Ref peeledRef = repo.getRefDatabase().peel(unpeeledRef);
59  			assertTrue(peeledRef instanceof ObjectIdRef.PeeledNonTag);
60  			assertEquals(1000, peeledRef.getUpdateIndex());
61  		}
62  	}
63  
64  	@Test
65  	public void sha1ToTip_ref() throws Exception {
66  		InMemoryRepository repo = new InMemoryRepository(
67  				new DfsRepositoryDescription());
68  		try (TestRepository<InMemoryRepository> git = new TestRepository<>(
69  				repo)) {
70  			RevCommit commit = git.branch("master").commit()
71  					.message("first commit").create();
72  
73  			Set<Ref> tipsWithSha1 = repo.getRefDatabase()
74  					.getTipsWithSha1(commit.getId());
75  			assertEquals(1, tipsWithSha1.size());
76  			Ref ref = tipsWithSha1.iterator().next();
77  			assertEquals(ref.getName(), "refs/heads/master");
78  			assertEquals(commit.getId(), ref.getObjectId());
79  		}
80  	}
81  
82  	@Test
83  	public void sha1ToTip_annotatedTag() throws Exception {
84  		InMemoryRepository repo = new InMemoryRepository(
85  				new DfsRepositoryDescription());
86  		try (TestRepository<InMemoryRepository> git = new TestRepository<>(
87  				repo)) {
88  			RevCommit commit = git.commit()
89  					.message("first commit").create();
90  			RevTag tagObj = git.tag("v0.1", commit);
91  			git.update("refs/tags/v0.1", tagObj);
92  			Set<Ref> tipsWithSha1 = repo.getRefDatabase()
93  					.getTipsWithSha1(commit.getId());
94  			assertEquals(1, tipsWithSha1.size());
95  			Ref ref = tipsWithSha1.iterator().next();
96  			assertEquals(ref.getName(), "refs/tags/v0.1");
97  			assertEquals(commit.getId(), ref.getPeeledObjectId());
98  		}
99  	}
100 
101 	@Test
102 	public void sha1ToTip_tag() throws Exception {
103 		InMemoryRepository repo = new InMemoryRepository(
104 				new DfsRepositoryDescription());
105 		try (TestRepository<InMemoryRepository> git = new TestRepository<>(
106 				repo)) {
107 			RevCommit commit = git.commit().message("first commit").create();
108 			git.update("refs/tags/v0.2", commit);
109 			Set<Ref> tipsWithSha1 = repo.getRefDatabase()
110 					.getTipsWithSha1(commit.getId());
111 			assertEquals(1, tipsWithSha1.size());
112 			Ref ref = tipsWithSha1.iterator().next();
113 			assertEquals(ref.getName(), "refs/tags/v0.2");
114 			assertEquals(commit.getId(), ref.getObjectId());
115 		}
116 	}
117 }