25
from bzrlib import workingtree
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26
from bzrlib.branch import Branch
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from bzrlib.tests import TestSkipped
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28
from bzrlib.tests.blackbox import ExternalBase
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class TestDiff(ExternalBase):
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def make_example_branch(test):
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# FIXME: copied from test_too_much -- share elsewhere?
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file('hello', 'wt').write('foo')
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test.runbzr('add hello')
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test.runbzr('commit -m setup hello')
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file('goodbye', 'wt').write('baz')
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test.runbzr('add goodbye')
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test.runbzr('commit -m setup goodbye')
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def subst_dates(string):
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"""Replace date strings with constant values."""
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return re.sub(r'\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2} [-\+]\d{4}',
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'YYYY-MM-DD HH:MM:SS +ZZZZ', string)
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class DiffBase(ExternalBase):
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"""Base class with common setup method"""
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def make_example_branch(self):
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tree = self.make_branch_and_tree('.')
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self.build_tree_contents([
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('goodbye', 'baz\n')])
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class TestDiff(DiffBase):
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def test_diff(self):
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self.make_example_branch()
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file('hello', 'wt').write('hello world!')
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self.runbzr('commit -m fixing hello')
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output = self.runbzr('diff -r 2..3', backtick=1, retcode=1)
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self.assert_('\n+hello world!' in output)
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output = self.runbzr('diff -r last:3..last:1', backtick=1, retcode=1)
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self.assert_('\n+baz' in output)
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file('moo', 'wb').write('moo')
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self.runbzr('add moo')
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tree = self.make_example_branch()
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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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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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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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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.build_tree(['moo'])
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def test_diff_prefix(self):
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"""diff --prefix appends to filenames in output"""
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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.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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+++ new/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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def test_diff_illegal_prefix_value(self):
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# There was an error in error reporting for this option
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out, err = self.run_bzr('diff --prefix old/', retcode=3)
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self.assertContainsRe(err,
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'--prefix expects two values separated by a colon')
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def test_diff_p1(self):
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"""diff -p1 produces lkml-style diffs"""
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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.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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+++ new/hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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def test_diff_p0(self):
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"""diff -p0 produces diffs with no prefix"""
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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.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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+++ hello\tYYYY-MM-DD HH:MM:SS +ZZZZ
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def test_diff_nonexistent(self):
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# Get an error from a file that does not exist at all
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self.make_example_branch()
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out, err = self.runbzr('diff does-not-exist', retcode=3)
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out, err = self.run_bzr('diff does-not-exist', retcode=3)
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self.assertContainsRe(err, 'not versioned.*does-not-exist')
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def test_diff_illegal_revision_specifiers(self):
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out, err = self.run_bzr('diff -r 1..23..123', retcode=3)
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self.assertContainsRe(err, 'one or two revision specifiers')
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def test_diff_unversioned(self):
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# Get an error when diffing a non-versioned file.
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self.make_example_branch()
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self.build_tree(['unversioned-file'])
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out, err = self.runbzr('diff unversioned-file', retcode=3)
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out, err = self.run_bzr('diff unversioned-file', retcode=3)
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self.assertContainsRe(err, 'not versioned.*unversioned-file')
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# TODO: What should diff say for a file deleted in working tree?
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def example_branches(self):
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self.build_tree(['branch1/', 'branch1/file'], line_endings='binary')
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self.capture('init branch1')
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self.capture('add branch1/file')
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self.run_bzr_captured(['commit', '-m', 'add file', 'branch1'])
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self.capture('branch branch1 branch2')
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print >> open('branch2/file', 'wb'), 'new content'
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self.run_bzr_captured(['commit', '-m', 'update file', 'branch2'])
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branch1_tree = self.make_branch_and_tree('branch1')
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self.build_tree(['branch1/file'], line_endings='binary')
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self.build_tree(['branch1/file2'], line_endings='binary')
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branch1_tree.add('file')
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branch1_tree.add('file2')
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branch1_tree.commit(message='add file and file2')
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branch2_tree = branch1_tree.bzrdir.sprout('branch2').open_workingtree()
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self.build_tree_contents([('branch2/file', 'new content\n')])
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branch2_tree.commit(message='update file')
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return branch1_tree, branch2_tree
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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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"+contents of branch1/file\n"
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"\n", subst_dates(out))
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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.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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"-contents of branch1/file\n"
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"\n", subst_dates(out))
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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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def test_diff_branches(self):
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self.example_branches()
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# should open branch1 and diff against branch2,
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output = self.run_bzr_captured(['diff', '-r', 'branch:branch2',
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self.assertEquals(("=== modified file 'a/file'\n"
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"+contents of branch1/file\n"
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output = self.run_bzr_captured(['diff', 'branch2', 'branch1'],
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self.assertEqualDiff(("=== modified file 'a/file'\n"
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self.check_b2_vs_b1('diff -r branch:branch2 branch1')
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# Compare two working trees using various syntax forms
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self.check_b2_vs_b1('diff --old branch2 --new branch1')
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self.check_b2_vs_b1('diff --old branch2 branch1')
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self.check_b2_vs_b1('diff branch2 --new branch1')
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# Test with a selected file that was changed
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self.check_b2_vs_b1('diff --old branch2 --new branch1 file')
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self.check_b2_vs_b1('diff --old branch2 branch1/file')
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self.check_b2_vs_b1('diff branch2/file --new branch1')
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# Test with a selected file that was not changed
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self.check_no_diffs('diff --old branch2 --new branch1 file2')
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self.check_no_diffs('diff --old branch2 branch1/file2')
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self.check_no_diffs('diff branch2/file2 --new branch1')
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def test_diff_branches_no_working_trees(self):
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branch1_tree, branch2_tree = self.example_branches()
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# Compare a working tree to a branch without a WT
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dir1 = branch1_tree.bzrdir
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dir1.destroy_workingtree()
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self.assertFalse(dir1.has_workingtree())
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self.check_b2_vs_b1('diff --old branch2 --new branch1')
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self.check_b2_vs_b1('diff --old branch2 branch1')
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self.check_b2_vs_b1('diff branch2 --new branch1')
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# Compare a branch without a WT to one with a WT
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self.check_b1_vs_b2('diff --old branch1 --new branch2')
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self.check_b1_vs_b2('diff --old branch1 branch2')
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self.check_b1_vs_b2('diff branch1 --new branch2')
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# Compare a branch with a WT against another without a WT
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dir2 = branch2_tree.bzrdir
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dir2.destroy_workingtree()
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self.assertFalse(dir2.has_workingtree())
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self.check_b1_vs_b2('diff --old branch1 --new branch2')
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self.check_b1_vs_b2('diff --old branch1 branch2')
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self.check_b1_vs_b2('diff branch1 --new branch2')
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def test_diff_revno_branches(self):
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self.example_branches()
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branch2_tree = workingtree.WorkingTree.open_containing('branch2')[0]
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self.build_tree_contents([('branch2/file', 'even newer content')])
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branch2_tree.commit(message='update file once more')
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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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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.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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"@@ -1,1 +1,1 @@\n"
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"+contents of branch1/file\n"
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"\n", subst_dates(out))
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def example_branch2(self):
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self.build_tree(['branch1/', 'branch1/file1'], line_endings='binary')
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self.capture('init branch1')
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self.capture('add branch1/file1')
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print >> open('branch1/file1', 'wb'), 'original line'
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self.run_bzr_captured(['commit', '-m', 'first commit', 'branch1'])
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print >> open('branch1/file1', 'wb'), 'repo line'
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self.run_bzr_captured(['commit', '-m', 'second commit', 'branch1'])
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branch1_tree = self.make_branch_and_tree('branch1')
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self.build_tree_contents([('branch1/file1', 'original line\n')])
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branch1_tree.add('file1')
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branch1_tree.commit(message='first commit')
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self.build_tree_contents([('branch1/file1', 'repo line\n')])
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branch1_tree.commit(message='second commit')
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def test_diff_to_working_tree(self):
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self.example_branch2()
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print >> open('branch1/file1', 'wb'), 'new line'
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output = self.run_bzr_captured(['diff', '-r', '1..', 'branch1'], retcode=1)
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self.assertTrue('\n-original line\n+new line\n' in output[0])
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self.build_tree_contents([('branch1/file1', 'new line')])
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output = self.run_bzr('diff -r 1.. branch1', retcode=1)
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self.assertContainsRe(output[0], '\n\\-original line\n\\+new line\n')
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def test_diff_to_working_tree_in_subdir(self):
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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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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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"""The working tree path should always be considered for diffing"""
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tree = self.make_example_branch()
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self.run_bzr('diff -r 0..1 hello', retcode=1)
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tree.rename_one('hello', 'hello1')
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self.run_bzr('diff hello1', retcode=1)
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self.run_bzr('diff -r 0..1 hello1', retcode=1)
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def test_diff_to_branch_no_working_tree(self):
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branch1_tree = self.example_branch2()
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dir1 = branch1_tree.bzrdir
281
dir1.destroy_workingtree()
282
self.assertFalse(dir1.has_workingtree())
283
output = self.run_bzr('diff -r 1.. branch1', retcode=1)
284
self.assertContainsRe(output[0], '\n\\-original line\n\\+repo line\n')
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class TestCheckoutDiff(TestDiff):
122
289
def make_example_branch(self):
123
super(TestCheckoutDiff, self).make_example_branch()
124
self.runbzr('checkout . checkout')
290
tree = super(TestCheckoutDiff, self).make_example_branch()
291
tree = tree.branch.create_checkout('checkout')
125
292
os.chdir('checkout')
127
295
def example_branch2(self):
128
super(TestCheckoutDiff, self).example_branch2()
296
tree = super(TestCheckoutDiff, self).example_branch2()
129
297
os.mkdir('checkouts')
130
self.runbzr('checkout branch1 checkouts/branch1')
298
tree = tree.branch.create_checkout('checkouts/branch1')
131
299
os.chdir('checkouts')
133
302
def example_branches(self):
134
super(TestCheckoutDiff, self).example_branches()
303
branch1_tree, branch2_tree = super(TestCheckoutDiff, self).example_branches()
135
304
os.mkdir('checkouts')
136
self.runbzr('checkout branch1 checkouts/branch1')
137
self.runbzr('checkout branch2 checkouts/branch2')
305
branch1_tree = branch1_tree.branch.create_checkout('checkouts/branch1')
306
branch2_tree = branch2_tree.branch.create_checkout('checkouts/branch2')
138
307
os.chdir('checkouts')
141
class TestDiffLabels(TestDiff):
308
return branch1_tree, branch2_tree
311
class TestDiffLabels(DiffBase):
143
313
def test_diff_label_removed(self):
144
super(TestDiffLabels, self).make_example_branch()
145
self.runbzr('remove hello')
146
diff = self.run_bzr_captured(['diff'], retcode=1)
147
self.assertTrue("=== removed file 'a/hello'" in diff[0])
314
tree = super(TestDiffLabels, self).make_example_branch()
315
tree.remove('hello', keep_files=False)
316
diff = self.run_bzr('diff', retcode=1)
317
self.assertTrue("=== removed file 'hello'" in diff[0])
149
319
def test_diff_label_added(self):
150
super(TestDiffLabels, self).make_example_branch()
151
file('barbar', 'wt').write('barbar')
152
self.runbzr('add barbar')
153
diff = self.run_bzr_captured(['diff'], retcode=1)
154
self.assertTrue("=== added file 'b/barbar'" in diff[0])
320
tree = super(TestDiffLabels, self).make_example_branch()
321
self.build_tree_contents([('barbar', 'barbar')])
323
diff = self.run_bzr('diff', retcode=1)
324
self.assertTrue("=== added file 'barbar'" in diff[0])
156
326
def test_diff_label_modified(self):
157
327
super(TestDiffLabels, self).make_example_branch()
158
file('hello', 'wt').write('barbar')
159
diff = self.run_bzr_captured(['diff'], retcode=1)
160
self.assertTrue("=== modified file 'a/hello'" in diff[0])
328
self.build_tree_contents([('hello', 'barbar')])
329
diff = self.run_bzr('diff', retcode=1)
330
self.assertTrue("=== modified file 'hello'" in diff[0])
162
332
def test_diff_label_renamed(self):
163
super(TestDiffLabels, self).make_example_branch()
164
self.runbzr('rename hello gruezi')
165
diff = self.run_bzr_captured(['diff'], retcode=1)
166
self.assertTrue("=== renamed file 'a/hello' => 'b/gruezi'" in diff[0])
333
tree = super(TestDiffLabels, self).make_example_branch()
334
tree.rename_one('hello', 'gruezi')
335
diff = self.run_bzr('diff', retcode=1)
336
self.assertTrue("=== renamed file 'hello' => 'gruezi'" in diff[0])
339
class TestExternalDiff(DiffBase):
341
def test_external_diff(self):
342
"""Test that we can spawn an external diff process"""
343
# We have to use run_bzr_subprocess, because we need to
344
# test writing directly to stdout, (there was a bug in
345
# subprocess.py that we had to workaround).
346
# However, if 'diff' may not be available
347
self.make_example_branch()
348
orig_progress = os.environ.get('BZR_PROGRESS_BAR')
350
os.environ['BZR_PROGRESS_BAR'] = 'none'
351
out, err = self.run_bzr_subprocess('diff -r 1 --diff-options -ub',
352
universal_newlines=True,
355
if orig_progress is None:
356
del os.environ['BZR_PROGRESS_BAR']
358
os.environ['BZR_PROGRESS_BAR'] = orig_progress
360
if 'Diff is not installed on this machine' in err:
361
raise TestSkipped("No external 'diff' is available")
362
self.assertEqual('', err)
363
# We have to skip the stuff in the middle, because it depends
365
self.assertStartsWith(out, "=== added file 'goodbye'\n"
366
"--- goodbye\t1970-01-01 00:00:00 +0000\n"
368
self.assertEndsWith(out, "\n@@ -0,0 +1 @@\n"
372
class TestDiffOutput(DiffBase):
374
def test_diff_output(self):
375
# check that output doesn't mangle line-endings
376
self.make_example_branch()
377
self.build_tree_contents([('hello', 'hello world!\n')])
378
output = self.run_bzr_subprocess('diff', retcode=1)[0]
379
self.assert_('\n+hello world!\n' in output)
added
removed
bzrlib/tests/blackbox/test_diff.py
