diff options
| -rw-r--r-- | org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java | 49 |
1 files changed, 24 insertions, 25 deletions
diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java index 9236b4e821..8b1d5cc37d 100644 --- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java +++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/RacyGitTests.java @@ -61,8 +61,8 @@ import org.junit.Test; public class RacyGitTests extends RepositoryTestCase { @Test - public void testIterator() throws IllegalStateException, IOException, - InterruptedException { + public void testIterator() + throws IllegalStateException, IOException, InterruptedException { TreeSet<Long> modTimes = new TreeSet<>(); File lastFile = null; for (int i = 0; i < 10; i++) { @@ -126,9 +126,6 @@ public class RacyGitTests extends RepositoryTestCase { @Test public void testRacyGitDetection() throws Exception { - TreeSet<Long> modTimes = new TreeSet<>(); - File lastFile; - // Reset to force creation of index file try (Git git = new Git(db)) { git.reset().call(); @@ -136,42 +133,44 @@ public class RacyGitTests extends RepositoryTestCase { // wait to ensure that modtimes of the file doesn't match last index // file modtime - modTimes.add(valueOf(fsTick(db.getIndexFile()))); + fsTick(db.getIndexFile()); // create two files - addToWorkDir("a", "a"); - lastFile = addToWorkDir("b", "b"); + File a = addToWorkDir("a", "a"); + File b = addToWorkDir("b", "b"); + assertTrue(a.setLastModified(b.lastModified())); + assertTrue(b.setLastModified(b.lastModified())); // wait to ensure that file-modTimes and therefore index entry modTime // doesn't match the modtime of index-file after next persistance - modTimes.add(valueOf(fsTick(lastFile))); + fsTick(b); // now add both files to the index. No racy git expected - resetIndex(new FileTreeIteratorWithTimeControl(db, modTimes)); + resetIndex(new FileTreeIterator(db)); assertEquals( - "[a, mode:100644, time:t0, length:1, content:a]" + - "[b, mode:100644, time:t0, length:1, content:b]", + "[a, mode:100644, time:t0, length:1, content:a]" + + "[b, mode:100644, time:t0, length:1, content:b]", indexState(SMUDGE | MOD_TIME | LENGTH | CONTENT)); - // Remember the last modTime of index file. All modifications times of - // further modification are translated to this value so it looks that - // files have been modified in the same time slot as the index file - modTimes.add(Long.valueOf(db.getIndexFile().lastModified())); + // wait to ensure the file 'a' is updated at t1. + fsTick(db.getIndexFile()); - // modify one file - addToWorkDir("a", "a2"); - // now update the index the index. 'a' has to be racily clean -- because - // it's modification time is exactly the same as the previous index file - // mod time. - resetIndex(new FileTreeIteratorWithTimeControl(db, modTimes)); + // Create a racy git situation. This is a situation that the index is + // updated and then a file is modified within a second. By changing the + // index file artificially, we create a fake racy situation. + File updatedA = addToWorkDir("a", "a2"); + assertTrue(updatedA.setLastModified(updatedA.lastModified() + 100)); + resetIndex(new FileTreeIterator(db)); + assertTrue(db.getIndexFile() + .setLastModified(updatedA.lastModified() + 90)); db.readDirCache(); // although racily clean a should not be reported as being dirty assertEquals( - "[a, mode:100644, time:t1, smudged, length:0, content:a2]" + - "[b, mode:100644, time:t0, length:1, content:b]", - indexState(SMUDGE|MOD_TIME|LENGTH|CONTENT)); + "[a, mode:100644, time:t1, smudged, length:0, content:a2]" + + "[b, mode:100644, time:t0, length:1, content:b]", + indexState(SMUDGE | MOD_TIME | LENGTH | CONTENT)); } private File addToWorkDir(String path, String content) throws IOException { |