try fixing up test fixtures and implementation

Author: Byron

git/diff.py

@@ -511,11 +511,11 @@ def handle_diff_line(line):
                 new_file = True
             elif change_type == 'C':
                 copied_file = True
-                a_path, b_path = path.split('\t', 1)
+                a_path, b_path = path.split('\x00', 1)
                 a_path = a_path.encode(defenc)
                 b_path = b_path.encode(defenc)
             elif change_type == 'R':
-                a_path, b_path = path.split('\t', 1)
+                a_path, b_path = path.split('\x00', 1)
                 a_path = a_path.encode(defenc)
                 b_path = b_path.encode(defenc)
                 rename_from, rename_to = a_path, b_path

test/test_diff.py

@@ -26,6 +26,10 @@
 import os.path as osp
 
 
+def to_raw(input):
+    return input.replace(b'\t', b'\x00')
+
+
 @ddt.ddt
 class TestDiff(TestBase):
 
@@ -112,7 +116,7 @@ def test_diff_with_rename(self):
         self.assertEqual(diff.raw_rename_to, b'm\xc3\xbcller')
         assert isinstance(str(diff), str)
 
-        output = StringProcessAdapter(fixture('diff_rename_raw'))
+        output = StringProcessAdapter(to_raw(fixture('diff_rename_raw')))
         diffs = Diff._index_from_raw_format(self.rorepo, output)
         self.assertEqual(len(diffs), 1)
         diff = diffs[0]
@@ -137,7 +141,7 @@ def test_diff_with_copied_file(self):
         self.assertTrue(diff.b_path, 'test2.txt')
         assert isinstance(str(diff), str)
 
-        output = StringProcessAdapter(fixture('diff_copied_mode_raw'))
+        output = StringProcessAdapter(to_raw(fixture('diff_copied_mode_raw')))
         diffs = Diff._index_from_raw_format(self.rorepo, output)
         self.assertEqual(len(diffs), 1)
         diff = diffs[0]
@@ -165,7 +169,7 @@ def test_diff_with_change_in_type(self):
         self.assertIsNotNone(diff.new_file)
         assert isinstance(str(diff), str)
 
-        output = StringProcessAdapter(fixture('diff_change_in_type_raw'))
+        output = StringProcessAdapter(to_raw(fixture('diff_change_in_type_raw')))
         diffs = Diff._index_from_raw_format(self.rorepo, output)
         self.assertEqual(len(diffs), 1)
         diff = diffs[0]
@@ -175,7 +179,7 @@ def test_diff_with_change_in_type(self):
         self.assertEqual(len(list(diffs.iter_change_type('T'))), 1)
 
     def test_diff_of_modified_files_not_added_to_the_index(self):
-        output = StringProcessAdapter(fixture('diff_abbrev-40_full-index_M_raw_no-color'))
+        output = StringProcessAdapter(to_raw(fixture('diff_abbrev-40_full-index_M_raw_no-color')))
         diffs = Diff._index_from_raw_format(self.rorepo, output)
 
         self.assertEqual(len(diffs), 1, 'one modification')