Normalizer creating a valid branch name from a string

Generic normalization method for a possible invalid branch name.
The method compresses dividers between spaces, then replaces spaces
and non word characters with underscores.

This method is needed in preparation for subsequent EGit changes.

Bug: 509878
Change-Id: Ic0d12f098f90f912a45bcc5693d6accf751d4e58
Signed-off-by: Wim Jongman <wim.jongman@remainsoftware.com>

1 files changed, 82 insertions, 0 deletions

diff --git a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ValidRefNameTest.java b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ValidRefNameTest.java
index e9d46bb582..9c85fbe1ea 100644
--- a/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ValidRefNameTest.java
+++ b/org.eclipse.jgit.test/tst/org/eclipse/jgit/lib/ValidRefNameTest.java
@@ -247,4 +247,86 @@ public class ValidRefNameTest {
 		assertValid(true, "refs/heads/conx");
 		assertValid(true, "refs/heads/xcon");
 	}
+
+	@Test
+	public void testNormalizeBranchName() {
+
+		assertEquals(true, Repository.normalizeBranchName("").equals(""));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("__@#$@#$@$____   _")
+						.equals(""));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("~`!@#$%^&*()_+}]{[|\\\";?>.<,/")
+						.equals(""));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 :::: Hello World")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 :::: Hello::: World")
+						.equals("Bug_12345-Hello-_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName(":::Bug 12345 - Hello World")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("---Bug 12345 - Hello World")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 ---- Hello --- World")
+						.equals("Bug_12345-Hello-World"));
+
+		assertEquals(true, Repository.normalizeBranchName(null) == null);
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 - Hello World!")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 : Hello World!")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 12345 _ Hello World!")
+						.equals("Bug_12345_Hello_World"));
+
+		assertEquals(true,
+				Repository
+						.normalizeBranchName("Bug 12345   -       Hello World!")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName(" Bug 12345   -   Hello World! ")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository
+						.normalizeBranchName(" Bug 12345   -   Hello World!   ")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository
+						.normalizeBranchName(
+								"Bug 12345   -   Hello______ World!")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("_Bug 12345 - Hello World!")
+						.equals("Bug_12345-Hello_World"));
+
+		assertEquals(true,
+				Repository
+						.normalizeBranchName(
+								"Bug 12345 - Hello Wo!@#$%^&*(rld {@")
+						.equals("Bug_12345-Hello_World_"));
+
+		assertEquals(true,
+				Repository.normalizeBranchName("Bug 1#$  2345 - Hello World")
+						.equals("Bug_12345-Hello_World"));
+	}
 }