291 lines
10 KiB
Python
291 lines
10 KiB
Python
# -*- coding: UTF-8 -*-
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#
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# Copyright 2010-2014 The pygit2 contributors
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License, version 2,
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# as published by the Free Software Foundation.
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#
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# In addition to the permissions in the GNU General Public License,
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# the authors give you unlimited permission to link the compiled
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# version of this file into combinations with other programs,
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# and to distribute those combinations without any restriction
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# coming from the use of this file. (The General Public License
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# restrictions do apply in other respects; for example, they cover
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# modification of the file, and distribution when not linked into
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# a combined executable.)
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#
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# This file is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING. If not, write to
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# the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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# Boston, MA 02110-1301, USA.
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"""Tests for Diff objects."""
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from __future__ import absolute_import
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from __future__ import unicode_literals
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import unittest
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import pygit2
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from pygit2 import GIT_DIFF_INCLUDE_UNMODIFIED
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from pygit2 import GIT_DIFF_IGNORE_WHITESPACE, GIT_DIFF_IGNORE_WHITESPACE_EOL
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from . import utils
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from itertools import chain
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COMMIT_SHA1_1 = '5fe808e8953c12735680c257f56600cb0de44b10'
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COMMIT_SHA1_2 = 'c2792cfa289ae6321ecf2cd5806c2194b0fd070c'
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COMMIT_SHA1_3 = '2cdae28389c059815e951d0bb9eed6533f61a46b'
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COMMIT_SHA1_4 = 'ccca47fbb26183e71a7a46d165299b84e2e6c0b3'
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COMMIT_SHA1_5 = '056e626e51b1fc1ee2182800e399ed8d84c8f082'
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COMMIT_SHA1_6 = 'f5e5aa4e36ab0fe62ee1ccc6eb8f79b866863b87'
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COMMIT_SHA1_7 = '784855caf26449a1914d2cf62d12b9374d76ae78'
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PATCH = """diff --git a/a b/a
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index 7f129fd..af431f2 100644
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--- a/a
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+++ b/a
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@@ -1 +1 @@
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-a contents 2
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+a contents
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diff --git a/c/d b/c/d
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deleted file mode 100644
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index 297efb8..0000000
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--- a/c/d
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+++ /dev/null
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@@ -1 +0,0 @@
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-c/d contents
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"""
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DIFF_HEAD_TO_INDEX_EXPECTED = [
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'staged_changes',
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'staged_changes_file_deleted',
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'staged_changes_file_modified',
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'staged_delete',
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'staged_delete_file_modified',
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'staged_new',
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'staged_new_file_deleted',
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'staged_new_file_modified'
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]
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DIFF_HEAD_TO_WORKDIR_EXPECTED = [
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'file_deleted',
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'modified_file',
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'staged_changes',
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'staged_changes_file_deleted',
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'staged_changes_file_modified',
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'staged_delete',
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'staged_delete_file_modified',
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'subdir/deleted_file',
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'subdir/modified_file'
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]
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DIFF_INDEX_TO_WORK_EXPECTED = [
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'file_deleted',
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'modified_file',
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'staged_changes_file_deleted',
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'staged_changes_file_modified',
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'staged_new_file_deleted',
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'staged_new_file_modified',
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'subdir/deleted_file',
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'subdir/modified_file'
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]
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HUNK_EXPECTED = """- a contents 2
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+ a contents
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"""
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class DiffDirtyTest(utils.DirtyRepoTestCase):
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def test_diff_empty_index(self):
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repo = self.repo
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head = repo[repo.lookup_reference('HEAD').resolve().target]
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diff = head.tree.diff_to_index(repo.index)
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files = [patch.new_file_path for patch in diff]
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self.assertEqual(DIFF_HEAD_TO_INDEX_EXPECTED, files)
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diff = repo.diff('HEAD', cached=True)
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files = [patch.new_file_path for patch in diff]
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self.assertEqual(DIFF_HEAD_TO_INDEX_EXPECTED, files)
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def test_workdir_to_tree(self):
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repo = self.repo
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head = repo[repo.lookup_reference('HEAD').resolve().target]
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diff = head.tree.diff_to_workdir()
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files = [patch.new_file_path for patch in diff]
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self.assertEqual(DIFF_HEAD_TO_WORKDIR_EXPECTED, files)
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diff = repo.diff('HEAD')
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files = [patch.new_file_path for patch in diff]
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self.assertEqual(DIFF_HEAD_TO_WORKDIR_EXPECTED, files)
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def test_index_to_workdir(self):
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diff = self.repo.diff()
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files = [patch.new_file_path for patch in diff]
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self.assertEqual(DIFF_INDEX_TO_WORK_EXPECTED, files)
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class DiffTest(utils.BareRepoTestCase):
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def test_diff_invalid(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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self.assertRaises(TypeError, commit_a.tree.diff_to_tree, commit_b)
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self.assertRaises(TypeError, commit_a.tree.diff_to_index, commit_b)
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def test_diff_empty_index(self):
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repo = self.repo
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head = repo[repo.lookup_reference('HEAD').resolve().target]
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diff = self.repo.index.diff_to_tree(head.tree)
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files = [patch.new_file_path.split('/')[0] for patch in diff]
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self.assertEqual([x.name for x in head.tree], files)
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diff = head.tree.diff_to_index(repo.index)
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files = [patch.new_file_path.split('/')[0] for patch in diff]
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self.assertEqual([x.name for x in head.tree], files)
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diff = repo.diff('HEAD', cached=True)
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files = [patch.new_file_path.split('/')[0] for patch in diff]
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self.assertEqual([x.name for x in head.tree], files)
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def test_diff_tree(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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def _test(diff):
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# self.assertIsNotNone is 2.7 only
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self.assertTrue(diff is not None)
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# self.assertIn is 2.7 only
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self.assertEqual(2, sum(map(lambda x: len(x.hunks), diff)))
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patch = diff[0]
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hunk = patch.hunks[0]
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self.assertEqual(hunk.old_start, 1)
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self.assertEqual(hunk.old_lines, 1)
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self.assertEqual(hunk.new_start, 1)
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self.assertEqual(hunk.new_lines, 1)
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self.assertEqual(patch.old_file_path, 'a')
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self.assertEqual(patch.new_file_path, 'a')
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self.assertEqual(patch.is_binary, False)
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_test(commit_a.tree.diff_to_tree(commit_b.tree))
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_test(self.repo.diff(COMMIT_SHA1_1, COMMIT_SHA1_2))
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def test_diff_empty_tree(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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diff = commit_a.tree.diff_to_tree()
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def get_context_for_lines(diff):
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hunks = chain(*map(lambda x: x.hunks, [p for p in diff]))
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lines = chain(*map(lambda x: x.lines, hunks))
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return map(lambda x: x[0], lines)
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entries = [p.new_file_path for p in diff]
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self.assertAll(lambda x: commit_a.tree[x], entries)
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self.assertAll(lambda x: '-' == x, get_context_for_lines(diff))
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diff_swaped = commit_a.tree.diff_to_tree(swap=True)
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entries = [p.new_file_path for p in diff_swaped]
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self.assertAll(lambda x: commit_a.tree[x], entries)
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self.assertAll(lambda x: '+' == x, get_context_for_lines(diff_swaped))
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def test_diff_revparse(self):
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diff = self.repo.diff('HEAD', 'HEAD~6')
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self.assertEqual(type(diff), pygit2.Diff)
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def test_diff_tree_opts(self):
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commit_c = self.repo[COMMIT_SHA1_3]
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commit_d = self.repo[COMMIT_SHA1_4]
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for flag in [GIT_DIFF_IGNORE_WHITESPACE,
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GIT_DIFF_IGNORE_WHITESPACE_EOL]:
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diff = commit_c.tree.diff_to_tree(commit_d.tree, flag)
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self.assertTrue(diff is not None)
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self.assertEqual(0, len(diff[0].hunks))
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diff = commit_c.tree.diff_to_tree(commit_d.tree)
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self.assertTrue(diff is not None)
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self.assertEqual(1, len(diff[0].hunks))
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def test_diff_merge(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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commit_c = self.repo[COMMIT_SHA1_3]
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diff_b = commit_a.tree.diff_to_tree(commit_b.tree)
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# self.assertIsNotNone is 2.7 only
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self.assertTrue(diff_b is not None)
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diff_c = commit_b.tree.diff_to_tree(commit_c.tree)
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# self.assertIsNotNone is 2.7 only
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self.assertTrue(diff_c is not None)
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# assertIn / assertNotIn are 2.7 only
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self.assertFalse('b' in [patch.new_file_path for patch in diff_b])
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self.assertTrue('b' in [patch.new_file_path for patch in diff_c])
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diff_b.merge(diff_c)
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# assertIn is 2.7 only
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self.assertTrue('b' in [patch.new_file_path for patch in diff_b])
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patch = diff_b[0]
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hunk = patch.hunks[0]
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self.assertEqual(hunk.old_start, 1)
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self.assertEqual(hunk.old_lines, 1)
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self.assertEqual(hunk.new_start, 1)
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self.assertEqual(hunk.new_lines, 1)
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self.assertEqual(patch.old_file_path, 'a')
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self.assertEqual(patch.new_file_path, 'a')
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def test_diff_patch(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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diff = commit_a.tree.diff_to_tree(commit_b.tree)
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self.assertEqual(diff.patch, PATCH)
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self.assertEqual(len(diff), len([patch for patch in diff]))
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def test_diff_ids(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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patch = commit_a.tree.diff_to_tree(commit_b.tree)[0]
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self.assertEqual(patch.old_id,
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'7f129fd57e31e935c6d60a0c794efe4e6927664b')
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self.assertEqual(patch.new_id,
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'af431f20fc541ed6d5afede3e2dc7160f6f01f16')
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def test_hunk_content(self):
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commit_a = self.repo[COMMIT_SHA1_1]
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commit_b = self.repo[COMMIT_SHA1_2]
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patch = commit_a.tree.diff_to_tree(commit_b.tree)[0]
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hunk = patch.hunks[0]
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lines = ('{0} {1}'.format(*x) for x in hunk.lines)
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self.assertEqual(HUNK_EXPECTED, ''.join(lines))
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def test_find_similar(self):
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commit_a = self.repo[COMMIT_SHA1_6]
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commit_b = self.repo[COMMIT_SHA1_7]
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#~ Must pass GIT_DIFF_INCLUDE_UNMODIFIED if you expect to emulate
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#~ --find-copies-harder during rename transformion...
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diff = commit_a.tree.diff_to_tree(commit_b.tree,
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GIT_DIFF_INCLUDE_UNMODIFIED)
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self.assertAll(lambda x: x.status != 'R', diff)
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diff.find_similar()
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self.assertAny(lambda x: x.status == 'R', diff)
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if __name__ == '__main__':
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unittest.main()
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