org.spearce.jgit.test/tst/org/spearce/jgit/lib/RefTest.java

   1 /*
   2  * Copyright (C) 2009, Robin Rosenberg
   3  *
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or
   7  * without modification, are permitted provided that the following
   8  * conditions are met:
   9  *
  10  * - Redistributions of source code must retain the above copyright
  11  *   notice, this list of conditions and the following disclaimer.
  12  *
  13  * - Redistributions in binary form must reproduce the above
  14  *   copyright notice, this list of conditions and the following
  15  *   disclaimer in the documentation and/or other materials provided
  16  *   with the distribution.
  17  *
  18  * - Neither the name of the Git Development Community nor the
  19  *   names of its contributors may be used to endorse or promote
  20  *   products derived from this software without specific prior
  21  *   written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  24  * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  25  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  26  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  28  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  30  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  31  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  33  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  35  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  36  */
  37 package org.spearce.jgit.lib;
  38
  39 import java.io.File;
  40 import java.io.FileOutputStream;
  41 import java.io.IOException;
  42 import java.util.Map;
  43
  44 import org.spearce.jgit.lib.Ref.Storage;
  45 import org.spearce.jgit.lib.RefUpdate.Result;
  46
  47 /**
  48  * Misc tests for refs. A lot of things are tested elsewhere so not having a
  49  * test for a ref related method, does not mean it is untested.
  50  */
  51 public class RefTest extends RepositoryTestCase {
  52
  53         public void testReadAllIncludingSymrefs() throws Exception {
  54                 ObjectId masterId = db.resolve("refs/heads/master");
  55                 RefUpdate updateRef = db.updateRef("refs/remotes/origin/master");
  56                 updateRef.setNewObjectId(masterId);
  57                 updateRef.setForceUpdate(true);
  58                 updateRef.update();
  59                 db
  60                                 .writeSymref("refs/remotes/origin/HEAD",
  61                                                 "refs/remotes/origin/master");
  62
  63                 ObjectId r = db.resolve("refs/remotes/origin/HEAD");
  64                 assertEquals(masterId, r);
  65
  66                 Map<String, Ref> allRefs = db.getAllRefs();
  67                 Ref refHEAD = allRefs.get("refs/remotes/origin/HEAD");
  68                 assertNotNull(refHEAD);
  69                 assertEquals(masterId, refHEAD.getObjectId());
  70                 assertTrue(refHEAD.isPeeled());
  71                 assertNull(refHEAD.getPeeledObjectId());
  72
  73                 Ref refmaster = allRefs.get("refs/remotes/origin/master");
  74                 assertEquals(masterId, refmaster.getObjectId());
  75                 assertFalse(refmaster.isPeeled());
  76                 assertNull(refmaster.getPeeledObjectId());
  77         }
  78
  79         public void testReadSymRefToPacked() throws IOException {
  80                 db.writeSymref("HEAD", "refs/heads/b");
  81                 Ref ref = db.getRef("HEAD");
  82                 assertEquals(Ref.Storage.LOOSE_PACKED, ref.getStorage());
  83         }
  84
  85         public void testReadSymRefToLoosePacked() throws IOException {
  86                 ObjectId pid = db.resolve("refs/heads/master^");
  87                 RefUpdate updateRef = db.updateRef("refs/heads/master");
  88                 updateRef.setNewObjectId(pid);
  89                 updateRef.setForceUpdate(true);
  90                 Result update = updateRef.update();
  91                 assertEquals(Result.FORCED, update); // internal
  92
  93                 db.writeSymref("HEAD", "refs/heads/master");
  94                 Ref ref = db.getRef("HEAD");
  95                 assertEquals(Ref.Storage.LOOSE_PACKED, ref.getStorage());
  96         }
  97
  98         public void testReadLooseRef() throws IOException {
  99                 RefUpdate updateRef = db.updateRef("ref/heads/new");
 100                 updateRef.setNewObjectId(db.resolve("refs/heads/master"));
 101                 Result update = updateRef.update();
 102                 assertEquals(Result.NEW, update);
 103                 Ref ref = db.getRef("ref/heads/new");
 104                 assertEquals(Storage.LOOSE, ref.getStorage());
 105         }
 106
 107         /**
 108          * Let an "outsider" create a loose ref with the same name as a packed one
 109          *
 110          * @throws IOException
 111          * @throws InterruptedException
 112          */
 113         public void testReadLoosePackedRef() throws IOException,
 114                         InterruptedException {
 115                 Ref ref = db.getRef("refs/heads/master");
 116                 assertEquals(Storage.PACKED, ref.getStorage());
 117                 FileOutputStream os = new FileOutputStream(new File(db.getDirectory(),
 118                                 "refs/heads/master"));
 119                 os.write(ref.getObjectId().name().getBytes());
 120                 os.write('\n');
 121                 os.close();
 122
 123                 ref = db.getRef("refs/heads/master");
 124                 assertEquals(Storage.LOOSE_PACKED, ref.getStorage());
 125         }
 126
 127         /**
 128          * Modify a packed ref using the API. This creates a loose ref too, ie.
 129          * LOOSE_PACKED
 130          *
 131          * @throws IOException
 132          */
 133         public void testReadSimplePackedRefSameRepo() throws IOException {
 134                 Ref ref = db.getRef("refs/heads/master");
 135                 ObjectId pid = db.resolve("refs/heads/master^");
 136                 assertEquals(Storage.PACKED, ref.getStorage());
 137                 RefUpdate updateRef = db.updateRef("refs/heads/master");
 138                 updateRef.setNewObjectId(pid);
 139                 updateRef.setForceUpdate(true);
 140                 Result update = updateRef.update();
 141                 assertEquals(Result.FORCED, update);
 142
 143                 ref = db.getRef("refs/heads/master");
 144                 assertEquals(Storage.LOOSE_PACKED, ref.getStorage());
 145         }
 146
 147 }