Paths.pathCompare: Utility to sort paths from byte[]

Consolidate copies of this function into one location.

Add some unit tests to prevent bugs that were accidentally
introduced while trying to make this refactoring.

Change-Id: I82f64bbb8601ca2d8316ca57ae8119df32bb5c08

1 files changed, 17 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCachePathEditTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCachePathEditTest.java
index 39a0cdac5f..c85e156352 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCachePathEditTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/dircache/DirCachePathEditTest.java
@@ -215,6 +215,23 @@ public class DirCachePathEditTest {
 	}
 
 	@Test
+	public void testDuplicateFiles() throws Exception {
+		DirCache dc = DirCache.newInCore();
+		DirCacheEditor editor = dc.editor();
+		editor.add(new AddEdit("a"));
+		editor.add(new AddEdit("a"));
+
+		try {
+			editor.finish();
+			fail("Expected DirCacheNameConflictException to be thrown");
+		} catch (DirCacheNameConflictException e) {
+			assertEquals("a a", e.getMessage());
+			assertEquals("a", e.getPath1());
+			assertEquals("a", e.getPath2());
+		}
+	}
+
+	@Test
 	public void testFileOverlapsTree() throws Exception {
 		DirCache dc = DirCache.newInCore();
 		DirCacheEditor editor = dc.editor();