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# 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
from test.testlib import *
from git import *
class TestDiff(TestCase):
def setUp(self):
self.repo = Repo(GIT_REPO)
def test_list_from_string_new_mode(self):
output = ListProcessAdapter(fixture('diff_new_mode'))
diffs = Diff._index_from_patch_format(self.repo, output.stdout)
assert_equal(1, len(diffs))
assert_equal(10, len(diffs[0].diff.splitlines()))
def test_diff_with_rename(self):
output = ListProcessAdapter(fixture('diff_rename'))
diffs = Diff._index_from_patch_format(self.repo, output.stdout)
assert_equal(1, len(diffs))
diff = diffs[0]
assert_true(diff.renamed)
assert_equal(diff.rename_from, 'AUTHORS')
assert_equal(diff.rename_to, 'CONTRIBUTORS')
def test_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" )
for fixture_name in fixtures:
diff_proc = ListProcessAdapter(fixture(fixture_name))
diffs = Diff._index_from_patch_format(self.repo, diff_proc.stdout)
# END for each fixture
def test_diff_interface(self):
# test a few variations of the main diff routine
assertion_map = dict()
for i, commit in enumerate(self.repo.iter_commits('0.1.6', max_count=10)):
diff_item = commit
if i%2 == 0:
diff_item = commit.tree
# END use tree every second item
for other in (None, commit.Index, commit.parents[0]):
for paths in (None, "CHANGES", ("CHANGES", "lib")):
for create_patch in range(2):
diff_index = diff_item.diff(other, paths, create_patch)
assert isinstance(diff_index, DiffIndex)
if diff_index:
for ct in DiffIndex.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
# 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
for key,value in assertion_map.items():
assert value, "Did not find diff for %s" % key
# END for each iteration type
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