Give git map-branches extra information behind -v and -vv flags.

tests/git_common_test.py

Index: tests/git_common_test.py
diff --git a/tests/git_common_test.py b/tests/git_common_test.py
index bba5b43ff8b163a2f4b725a82e8ad02631b219ce..b0ada6dfd092c673e336ba5453c83af203f5e63f 100755
--- a/tests/git_common_test.py
+++ b/tests/git_common_test.py
@@ -207,6 +207,8 @@ class GitReadOnlyFunctionsTest(git_test_utils.GitRepoReadOnlyTestBase,
       self.repo.run(self.gc.hash_one, 'branch_D'),
       self.repo['D']
     )
+    self.assertTrue(self.repo['D'].startswith(
+        self.repo.run(self.gc.hash_one, 'branch_D', short=True)))
 
   def testStream(self):
     items = set(self.repo.commit_map.itervalues())
@@ -366,6 +368,37 @@ class GitMutableFunctionsTest(git_test_utils.GitRepoReadWriteTestBase,
     self.assertEquals(self.repo.run(self.gc.upstream, 'happybranch'),
                       'master')
 
+  def testNormalizedVersion(self):
+    self.assertTrue(all(
+        isinstance(x, int) for x in self.repo.run(self.gc.normalized_version)))
+
+  def testGetAllTrackingInfo(self):
+    self.repo.git('commit', '--allow-empty', '-am', 'foooooo')
+    self.repo.git('checkout', '-tb', 'happybranch', 'master')
+    self.repo.git('commit', '--allow-empty', '-am', 'foooooo')
+    self.repo.git('checkout', '-tb', 'child', 'happybranch')
+    expected = {
+      'happybranch': {
+        'hash': self.repo.run(self.gc.hash_one, 'happybranch', short=True),
+        'upstream': 'master',
+        'ahead': 'ahead 1',
+        'behind': ''
+      },
+      'child': {
+        'hash': self.repo.run(self.gc.hash_one, 'child', short=True),
+        'upstream': 'happybranch',
+        'ahead': '',
+        'behind': ''
+      },
+      'master': {
+        'hash': self.repo.run(self.gc.hash_one, 'master', short=True),
+        'upstream': '',
+        'ahead': '',
+        'behind': ''
+      }
+    }
+    self.assertEquals(self.repo.run(self.gc.get_all_tracking_info), expected)
+
 
 class GitMutableStructuredTest(git_test_utils.GitRepoReadWriteTestBase,
                                GitCommonTestBase):