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# coding: utf-8
# test_diff.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
importddt
fromgitimport (
Repo,
GitCommandError,
Diff,
DiffIndex,
NULL_TREE,
)
fromgit.cmdimportGit
fromgit.test.libimport (
TestBase,
StringProcessAdapter,
fixture,
assert_equal,
assert_true,
)
fromgit.test.libimportwith_rw_directory
importos.pathasosp
@ddt.ddt
classTestDiff(TestBase):
deftearDown(self):
importgc
gc.collect()
def_assert_diff_format(self,diffs):
# verify that the format of the diff is sane
fordiffindiffs:
ifdiff.a_mode:
assertisinstance(diff.a_mode,int)
ifdiff.b_mode:
assertisinstance(diff.b_mode,int)
ifdiff.a_blob:
assertnotdiff.a_blob.path.endswith('\n')
ifdiff.b_blob:
assertnotdiff.b_blob.path.endswith('\n')
# END for each diff
returndiffs
@with_rw_directory
deftest_diff_with_staged_file(self,rw_dir):
# SETUP INDEX WITH MULTIPLE STAGES
r=Repo.init(rw_dir)
fp=osp.join(rw_dir,'hello.txt')
withopen(fp,'w')asfs:
fs.write("hello world")
r.git.add(Git.polish_url(fp))
r.git.commit(message="init")
withopen(fp,'w')asfs:
fs.write("Hola Mundo")
r.git.commit(all=True,message="change on master")
r.git.checkout('HEAD~1',b='topic')
withopen(fp,'w')asfs:
fs.write("Hallo Welt")
r.git.commit(all=True,message="change on topic branch")
# there must be a merge-conflict
self.failUnlessRaises(GitCommandError,r.git.cherry_pick,'master')
# Now do the actual testing - this should just work
self.assertEqual(len(r.index.diff(None)),2)
self.assertEqual(len(r.index.diff(None,create_patch=True)),0,
"This should work, but doesn't right now ... it's OK")
deftest_list_from_string_new_mode(self):
output=StringProcessAdapter(fixture('diff_new_mode'))
diffs=Diff._index_from_patch_format(self.rorepo,output)
self._assert_diff_format(diffs)
assert_equal(1,len(diffs))
assert_equal(8,len(diffs[0].diff.splitlines()))
deftest_diff_with_rename(self):
output=StringProcessAdapter(fixture('diff_rename'))
diffs=Diff._index_from_patch_format(self.rorepo,output)
self._assert_diff_format(diffs)
assert_equal(1,len(diffs))
diff=diffs[0]
assert_true(diff.renamed_file)
assert_true(diff.renamed)
assert_equal(diff.rename_from,u'Jérôme')
assert_equal(diff.rename_to,u'müller')
assert_equal(diff.raw_rename_from,b'J\xc3\xa9r\xc3\xb4me')
assert_equal(diff.raw_rename_to,b'm\xc3\xbcller')
assertisinstance(str(diff),str)
output=StringProcessAdapter(fixture('diff_rename_raw'))
diffs=Diff._index_from_raw_format(self.rorepo,output)
self.assertEqual(len(diffs),1)
diff=diffs[0]
self.assertIsNotNone(diff.renamed_file)
self.assertIsNotNone(diff.renamed)
self.assertEqual(diff.rename_from,'this')
self.assertEqual(diff.rename_to,'that')
self.assertEqual(diff.change_type,'R')
self.assertEqual(diff.score,100)
self.assertEqual(len(list(diffs.iter_change_type('R'))),1)
deftest_diff_with_change_in_type(self):
output=StringProcessAdapter(fixture('diff_change_in_type'))
diffs=Diff._index_from_patch_format(self.rorepo,output)
self._assert_diff_format(diffs)
assert_equal(2,len(diffs))
diff=diffs[0]
self.assertIsNotNone(diff.deleted_file)
assert_equal(diff.a_path,'this')
assert_equal(diff.b_path,'this')
assertisinstance(str(diff),str)
diff=diffs[1]
assert_equal(diff.a_path,None)
assert_equal(diff.b_path,'this')
self.assertIsNotNone(diff.new_file)
assertisinstance(str(diff),str)
output=StringProcessAdapter(fixture('diff_change_in_type_raw'))
diffs=Diff._index_from_raw_format(self.rorepo,output)
self.assertEqual(len(diffs),1)
diff=diffs[0]
self.assertEqual(diff.rename_from,None)
self.assertEqual(diff.rename_to,None)
self.assertEqual(diff.change_type,'T')
self.assertEqual(len(list(diffs.iter_change_type('T'))),1)
deftest_diff_of_modified_files_not_added_to_the_index(self):
output=StringProcessAdapter(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')
self.assertEqual(len(list(diffs.iter_change_type('M'))),1,'one modification')
self.assertEqual(diffs[0].change_type,'M')
self.assertIsNone(diffs[0].b_blob,)
@ddt.data(
(Diff._index_from_patch_format,'diff_patch_binary'),
(Diff._index_from_raw_format,'diff_raw_binary')
)
deftest_binary_diff(self,case):
method,file_name=case
res=method(None,StringProcessAdapter(fixture(file_name)))
self.assertEqual(len(res),1)
self.assertEqual(len(list(res.iter_change_type('M'))),1)
ifres[0].diff:
self.assertEqual(res[0].diff,
b"Binary files a/rps and b/rps differ\n",
"in patch mode, we get a diff text")
self.assertIsNotNone(str(res[0]),"This call should just work")
deftest_diff_index(self):
output=StringProcessAdapter(fixture('diff_index_patch'))
res=Diff._index_from_patch_format(None,output)
self.assertEqual(len(res),6)
fordrinres:
self.assertTrue(dr.diff.startswith(b'@@'),dr)
self.assertIsNotNone(str(dr),"Diff to string conversion should be possible")
# end for each diff
dr=res[3]
assertdr.diff.endswith(b"+Binary files a/rps and b/rps differ\n")
deftest_diff_index_raw_format(self):
output=StringProcessAdapter(fixture('diff_index_raw'))
res=Diff._index_from_raw_format(None,output)
self.assertIsNotNone(res[0].deleted_file)
self.assertIsNone(res[0].b_path,)
deftest_diff_initial_commit(self):
initial_commit=self.rorepo.commit('33ebe7acec14b25c5f84f35a664803fcab2f7781')
# Without creating a patch...
diff_index=initial_commit.diff(NULL_TREE)
self.assertEqual(diff_index[0].b_path,'CHANGES')
self.assertIsNotNone(diff_index[0].new_file)
self.assertEqual(diff_index[0].diff,'')
# ...and with creating a patch
diff_index=initial_commit.diff(NULL_TREE,create_patch=True)
self.assertIsNone(diff_index[0].a_path,repr(diff_index[0].a_path))
self.assertEqual(diff_index[0].b_path,'CHANGES',repr(diff_index[0].b_path))
self.assertIsNotNone(diff_index[0].new_file)
self.assertEqual(diff_index[0].diff,fixture('diff_initial'))
deftest_diff_unsafe_paths(self):
output=StringProcessAdapter(fixture('diff_patch_unsafe_paths'))
res=Diff._index_from_patch_format(None,output)
# The "Additions"
self.assertEqual(res[0].b_path,u'path/ starting with a space')
self.assertEqual(res[1].b_path,u'path/"with-quotes"')
self.assertEqual(res[2].b_path,u"path/'with-single-quotes'")
self.assertEqual(res[3].b_path,u'path/ending in a space ')
self.assertEqual(res[4].b_path,u'path/with\ttab')
self.assertEqual(res[5].b_path,u'path/with\nnewline')
self.assertEqual(res[6].b_path,u'path/with spaces')
self.assertEqual(res[7].b_path,u'path/with-question-mark?')
self.assertEqual(res[8].b_path,u'path/¯\\_(ツ)_|¯')
self.assertEqual(res[9].b_path,u'path/💩.txt')
self.assertEqual(res[9].b_rawpath,b'path/\xf0\x9f\x92\xa9.txt')
self.assertEqual(res[10].b_path,u'path/�-invalid-unicode-path.txt')
self.assertEqual(res[10].b_rawpath,b'path/\x80-invalid-unicode-path.txt')
# The "Moves"
# NOTE: The path prefixes a/ and b/ here are legit! We're actually
# verifying that it's not "a/a/" that shows up, see the fixture data.
self.assertEqual(res[11].a_path,u'a/with spaces')# NOTE: path a/ here legit!
self.assertEqual(res[11].b_path,u'b/with some spaces')# NOTE: path b/ here legit!
self.assertEqual(res[12].a_path,u'a/ending in a space ')
self.assertEqual(res[12].b_path,u'b/ending with space ')
self.assertEqual(res[13].a_path,u'a/"with-quotes"')
self.assertEqual(res[13].b_path,u'b/"with even more quotes"')
deftest_diff_patch_format(self):
# test all of the 'old' format diffs for completness - it should at least
# be able to deal with it
fixtures= ("diff_2","diff_2f","diff_f","diff_i","diff_mode_only",
"diff_new_mode","diff_numstat","diff_p","diff_rename",
"diff_tree_numstat_root","diff_patch_unsafe_paths")
forfixture_nameinfixtures:
diff_proc=StringProcessAdapter(fixture(fixture_name))
Diff._index_from_patch_format(self.rorepo,diff_proc)
# END for each fixture
deftest_diff_with_spaces(self):
data=StringProcessAdapter(fixture('diff_file_with_spaces'))
diff_index=Diff._index_from_patch_format(self.rorepo,data)
self.assertIsNone(diff_index[0].a_path,repr(diff_index[0].a_path))
self.assertEqual(diff_index[0].b_path,u'file with spaces',repr(diff_index[0].b_path))
deftest_diff_interface(self):
# test a few variations of the main diff routine
assertion_map= {}
fori,commitinenumerate(self.rorepo.iter_commits('0.1.6',max_count=2)):
diff_item=commit
ifi%2==0:
diff_item=commit.tree
# END use tree every second item
forotherin (None,NULL_TREE,commit.Index,commit.parents[0]):
forpathsin (None,"CHANGES", ("CHANGES","lib")):
forcreate_patchinrange(2):
diff_index=diff_item.diff(other=other,paths=paths,create_patch=create_patch)
assertisinstance(diff_index,DiffIndex)
ifdiff_index:
self._assert_diff_format(diff_index)
forctinDiffIndex.change_type:
key='ct_%s'%ct
assertion_map.setdefault(key,0)
assertion_map[key]=assertion_map[key]+len(list(diff_index.iter_change_type(ct)))
# END for each changetype
# check entries
diff_set=set()
diff_set.add(diff_index[0])
diff_set.add(diff_index[0])
self.assertEqual(len(diff_set),1)
self.assertEqual(diff_index[0],diff_index[0])
self.assertFalse(diff_index[0]!=diff_index[0])
fordrindiff_index:
self.assertIsNotNone(str(dr),"Diff to string conversion should be possible")
# END diff index checking
# END for each patch option
# END for each path option
# END for each other side
# END for each commit
# assert we could always find at least one instance of the members we
# can iterate in the diff index - if not this indicates its not working correctly
# or our test does not span the whole range of possibilities
forkey,valueinassertion_map.items():
self.assertIsNotNone(value,"Did not find diff for %s"%key)
# END for each iteration type
# test path not existing in the index - should be ignored
c=self.rorepo.head.commit
cp=c.parents[0]
diff_index=c.diff(cp, ["does/not/exist"])
self.assertEqual(len(diff_index),0)