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# Copyright (C) 2006-2010 Canonical Ltd
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# Copyright (C) 2006-2012, 2016 Canonical Ltd
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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"""Black-box tests for bzr diff.
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"""Black-box tests for brz diff."""
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from bzrlib.diff import (
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from breezy.diff import (
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format_registry as diff_format_registry,
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from breezy.tests import (
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def subst_dates(string):
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self.build_tree_contents([('hello', 'hello world!')])
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tree.commit(message='fixing hello')
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output = self.run_bzr('diff -r 2..3', retcode=1)[0]
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self.assert_('\n+hello world!' in output)
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self.assertTrue('\n+hello world!' in output)
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output = self.run_bzr('diff -c 3', retcode=1)[0]
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self.assert_('\n+hello world!' in output)
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self.assertTrue('\n+hello world!' in output)
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output = self.run_bzr('diff -r last:3..last:1', retcode=1)[0]
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self.assert_('\n+baz' in output)
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self.assertTrue('\n+baz' in output)
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output = self.run_bzr('diff -c last:2', retcode=1)[0]
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self.assert_('\n+baz' in output)
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self.assertTrue('\n+baz' in output)
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self.build_tree(['moo'])
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self.make_example_branch()
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self.build_tree_contents([('hello', 'hello world!\n')])
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out, err = self.run_bzr('diff --prefix old/:new/', retcode=1)
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self.assertEquals(err, '')
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self.assertEqual(err, '')
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self.assertEqualDiff(subst_dates(out), '''\
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=== modified file 'hello'
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--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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self.make_example_branch()
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self.build_tree_contents([('hello', 'hello world!\n')])
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out, err = self.run_bzr('diff -p1', retcode=1)
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self.assertEquals(err, '')
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self.assertEqual(err, '')
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self.assertEqualDiff(subst_dates(out), '''\
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=== modified file 'hello'
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--- old/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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self.make_example_branch()
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self.build_tree_contents([('hello', 'hello world!\n')])
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out, err = self.run_bzr('diff -p0', retcode=1)
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self.assertEquals(err, '')
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self.assertEqual(err, '')
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self.assertEqualDiff(subst_dates(out), '''\
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=== modified file 'hello'
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--- hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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def check_b2_vs_b1(self, cmd):
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# Compare branch2 vs branch1 using cmd and check the result
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out, err = self.run_bzr(cmd, retcode=1)
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self.assertEquals('', err)
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self.assertEquals("=== modified file 'file'\n"
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"--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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self.assertEqual('', err)
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self.assertEqual("=== modified file 'file'\n"
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"--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"@@ -1,1 +1,1 @@\n"
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"+contents of branch1/file\n"
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def check_b1_vs_b2(self, cmd):
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# Compare branch1 vs branch2 using cmd and check the result
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out, err = self.run_bzr(cmd, retcode=1)
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self.assertEquals('', err)
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self.assertEqual('', err)
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self.assertEqualDiff("=== modified file 'file'\n"
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"--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"@@ -1,1 +1,1 @@\n"
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"-contents of branch1/file\n"
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def check_no_diffs(self, cmd):
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# Check that running cmd returns an empty diff
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out, err = self.run_bzr(cmd, retcode=0)
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self.assertEquals('', err)
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self.assertEquals('', out)
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self.assertEqual('', err)
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self.assertEqual('', out)
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def test_diff_branches(self):
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self.example_branches()
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out, err = self.run_bzr('diff -r revno:1:branch2..revno:1:branch1',
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self.assertEquals('', err)
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self.assertEquals('', out)
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self.assertEqual('', err)
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self.assertEqual('', out)
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out, err = self.run_bzr('diff -r revno:2:branch2..revno:1:branch1',
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self.assertEquals('', err)
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self.assertEqual('', err)
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self.assertEqualDiff("=== modified file 'file'\n"
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"--- file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"--- old/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"+++ new/file\tYYYY-MM-DD HH:MM:SS +ZZZZ\n"
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"@@ -1,1 +1,1 @@\n"
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"+contents of branch1/file\n"
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self.example_branch2()
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self.build_tree_contents([('branch1/file1', 'new line')])
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os.mkdir('branch1/dir1')
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os.chdir('branch1/dir1')
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output = self.run_bzr('diff -r 1..', retcode=1)
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output = self.run_bzr('diff -r 1..', retcode=1,
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working_dir='branch1/dir1')
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self.assertContainsRe(output[0], '\n\\-original line\n\\+new line\n')
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def test_diff_across_rename(self):
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return super(BooDiffTree, self).show_diff(specific_files,
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diff_format_registry.register("boo", BooDiffTree,
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diff_format_registry.register("boo", BooDiffTree, "Scary diff format")
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self.addCleanup(diff_format_registry.remove, "boo")
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self.make_example_branch()
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self.build_tree_contents([('hello', 'hello world!\n')])
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output = self.run_bzr('diff --format=boo', retcode=1)
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self.assertTrue("BOO!" in output[0])
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output = self.run_bzr('diff -Fboo', retcode=1)
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self.assertTrue("BOO!" in output[0])
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class TestCheckoutDiff(TestDiff):
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def example_branches(self):
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branch1_tree, branch2_tree = super(TestCheckoutDiff, self).example_branches()
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branch1_tree, branch2_tree = super(TestCheckoutDiff,
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self).example_branches()
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os.mkdir('checkouts')
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branch1_tree = branch1_tree.branch.create_checkout('checkouts/branch1')
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branch2_tree = branch2_tree.branch.create_checkout('checkouts/branch2')
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# subprocess.py that we had to workaround).
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# However, if 'diff' may not be available
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self.make_example_branch()
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# this will be automatically restored by the base bzr test class
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os.environ['BZR_PROGRESS_BAR'] = 'none'
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out, err = self.run_bzr_subprocess('diff -r 1 --diff-options -ub',
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universal_newlines=True,
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out, err = self.run_bzr_subprocess(
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'diff -Oprogress_bar=none -r 1 --diff-options -ub',
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universal_newlines=True,
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if 'Diff is not installed on this machine' in err:
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raise tests.TestSkipped("No external 'diff' is available")
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self.assertEqual('', err)
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# We have to skip the stuff in the middle, because it depends
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self.assertStartsWith(out, "=== added file 'goodbye'\n"
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"--- goodbye\t1970-01-01 00:00:00 +0000\n"
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self.assertStartsWith(
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"=== added file 'goodbye'\n"
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"--- old/goodbye\t1970-01-01 00:00:00 +0000\n"
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self.assertEndsWith(out, "\n@@ -0,0 +1 @@\n"
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def test_external_diff_options_and_using(self):
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"""Test that the options are passed correctly to an external diff process"""
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self.requireFeature(features.diff_feature)
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self.make_example_branch()
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self.build_tree_contents([('hello', 'Foo\n')])
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out, err = self.run_bzr('diff --diff-options -i --using diff',
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self.assertEqual("=== modified file 'hello'\n", out)
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self.assertEqual('', err)
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class TestDiffOutput(DiffBase):
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self.make_example_branch()
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self.build_tree_contents([('hello', 'hello world!\n')])
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output = self.run_bzr_subprocess('diff', retcode=1)[0]
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self.assert_('\n+hello world!\n' in output)
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self.assertTrue('\n+hello world!\n' in output)