Added some missing tests for copy+chmod, copy+chmod+modify

on diff parser

rhodecode/tests/fixtures/hg_diff_copy_and_chmod_file.diff

@@ -0,0 +1,5 b''
+diff --git a/file3 b/file4
+old mode 100644
+new mode 100755
+copy from file3
+copy to file4

rhodecode/tests/fixtures/hg_diff_copy_and_modify_file.diff

@@ -0,0 +1,9 b''
+diff --git a/file2 b/file3
+copy from file2
+copy to file3
+--- a/file2
++++ b/file3
+@@ -1,2 +1,3 @@
+ line1
+ line2
++line3

rhodecode/tests/fixtures/hg_diff_copy_chmod_and_edit_file.diff

@@ -0,0 +1,13 b''
+diff --git a/file4 b/file5
+old mode 100755
+new mode 100644
+copy from file4
+copy to file5
+--- a/file4
++++ b/file5
+@@ -1,3 +1,4 @@
+-line1
+ line2
+ line3
++line4
++line5

rhodecode/tests/models/test_diff_parsers.py

@@ -223,6 +223,31 b' DIFF_FIXTURES = {'
           'deleted': 0,
           'binary': True,
           'ops': {COPIED_FILENODE: 'file copied from file1 to file2'}}),
+    ],
+    'hg_diff_copy_and_modify_file.diff': [
+        ('file3', 'M',
+         {'added': 1,
+          'deleted': 0,
+          'binary': False,
+          'ops': {COPIED_FILENODE: 'file copied from file2 to file3',
+                  MOD_FILENODE: 'modified file'}}),
+    ],
+    'hg_diff_copy_and_chmod_file.diff': [
+        ('file4', 'M',
+         {'added': 0,
+          'deleted': 0,
+          'binary': True,
+          'ops': {COPIED_FILENODE: 'file copied from file3 to file4',
+                  CHMOD_FILENODE: 'modified file chmod 100644 => 100755'}}),
+    ],
+    'hg_diff_copy_chmod_and_edit_file.diff': [
+        ('file5', 'M',
+         {'added': 2,
+          'deleted': 1,
+          'binary': False,
+          'ops': {COPIED_FILENODE: 'file copied from file4 to file5',
+                  CHMOD_FILENODE: 'modified file chmod 100755 => 100644',
+                  MOD_FILENODE: 'modified file'}}),
     ]
 #     'large_diff.diff': [
 #         ('.hgignore', 'A', {'deleted': 0, 'binary': False, 'added': 3, 'ops': {1: 'new file 100644'}}),