Move patch management functions into their own file, patch.py.

tests/checkout_test.py

Index: tests/checkout_test.py
diff --git a/tests/checkout_test.py b/tests/checkout_test.py
index b1dac5e88df915e894bd879364f4dae40b5d5bd9..ca4d4f4c780556f53769e96ee773133cca818009 100755
--- a/tests/checkout_test.py
+++ b/tests/checkout_test.py
@@ -16,7 +16,7 @@ ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
 sys.path.append(os.path.join(ROOT_DIR, '..'))
 
 import checkout
-import pending_manager
+import patch
 from tests import fake_repos
 
 
@@ -121,7 +121,7 @@ class SvnCheckout(BaseTest):
     svn_utils_test_path = os.path.join(self.root_dir, 'svn_utils_test.txt')
     content = read(svn_utils_test_path)
     self.assertTrue(svn_utils_test_path)
-    co.apply_patch(pending_manager.auto_mangle_git_patch(GIT_PATCH))
+    co.apply_patch(patch.auto_mangle_git_patch(GIT_PATCH))
     content_lines = content.splitlines(True)
     content_modified = ''.join(
         content_lines[0:5] + ['FOO!\n'] + content_lines[5:])
@@ -156,7 +156,7 @@ class SvnCheckout(BaseTest):
     svn_utils_test_path = os.path.join(self.root_dir, 'svn_utils_test.txt')
     content = read(svn_utils_test_path)
     self.assertTrue(svn_utils_test_path)
-    co.apply_patch(pending_manager.auto_mangle_git_patch(GIT_PATCH))
+    co.apply_patch(patch.auto_mangle_git_patch(GIT_PATCH))
     content_lines = content.splitlines(True)
     content_modified = ''.join(content_lines[0:5] + ['FOO!\n'] +
       content_lines[5:])
@@ -187,7 +187,7 @@ class GitSvnCheckout(BaseTest):
     self.assertEquals('pouet', co.get_settings('bar'))
     content = read(os.path.join(self.root_dir, 'svn_utils_test.txt'))
     self.assertTrue(os.path.join(self.root_dir, 'svn_utils_test.txt'))
-    co.apply_patch(pending_manager.auto_mangle_git_patch(GIT_PATCH))
+    co.apply_patch(patch.auto_mangle_git_patch(GIT_PATCH))
     content_lines = content.splitlines(True)
     content_modified = ''.join(content_lines[0:5] + ['FOO!\n'] +
       content_lines[5:])