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import os
from StringIO import StringIO
from bzrlib.branch import Branch
from bzrlib.builtins import merge
from bzrlib.commit import commit
from bzrlib.errors import UnrelatedBranches, NoCommits, BzrCommandError
from bzrlib.merge import transform_tree, merge_inner
from bzrlib.osutils import pathjoin
from bzrlib.revision import common_ancestor
from bzrlib.tests import TestCaseWithTransport
from bzrlib.trace import (enable_test_log, disable_test_log)
from bzrlib.workingtree import WorkingTree
class TestMerge(TestCaseWithTransport):
"""Test appending more than one revision"""
def test_pending(self):
wt = self.make_branch_and_tree('.')
wt.commit("lala!")
self.assertEquals(len(wt.pending_merges()), 0)
merge([u'.', -1], [None, None])
self.assertEquals(len(wt.pending_merges()), 0)
def test_nocommits(self):
self.test_pending()
wt2 = self.make_branch_and_tree('branch2')
self.assertRaises(NoCommits, merge, ['branch2', -1],
[None, None])
return wt2
def test_unrelated(self):
wt2 = self.test_nocommits()
wt2.commit("blah")
self.assertRaises(UnrelatedBranches, merge, ['branch2', -1],
[None, None])
return wt2
def test_pending_with_null(self):
"""When base is forced to revno 0, pending_merges is set"""
wt2 = self.test_unrelated()
wt1 = WorkingTree.open('.')
br1 = wt1.branch
br1.fetch(wt2.branch)
# merge all of branch 2 into branch 1 even though they
# are not related.
self.assertRaises(BzrCommandError, merge, ['branch2', -1],
['branch2', 0], reprocess=True, show_base=True)
merge(['branch2', -1], ['branch2', 0], reprocess=True)
self.assertEquals(len(wt1.pending_merges()), 1)
return (wt1, wt2.branch)
def test_two_roots(self):
"""Merge base is sane when two unrelated branches are merged"""
wt1, br2 = self.test_pending_with_null()
wt1.commit("blah")
last = wt1.branch.last_revision()
self.assertEquals(common_ancestor(last, last, wt1.branch.repository), last)
def test_create_rename(self):
"""Rename an inventory entry while creating the file"""
tree =self.make_branch_and_tree('.')
file('name1', 'wb').write('Hello')
tree.add('name1')
tree.commit(message="hello")
tree.rename_one('name1', 'name2')
os.unlink('name2')
transform_tree(tree, tree.branch.basis_tree())
def test_layered_rename(self):
"""Rename both child and parent at same time"""
tree =self.make_branch_and_tree('.')
os.mkdir('dirname1')
tree.add('dirname1')
filename = pathjoin('dirname1', 'name1')
file(filename, 'wb').write('Hello')
tree.add(filename)
tree.commit(message="hello")
filename2 = pathjoin('dirname1', 'name2')
tree.rename_one(filename, filename2)
tree.rename_one('dirname1', 'dirname2')
transform_tree(tree, tree.branch.basis_tree())
def test_ignore_zero_merge_inner(self):
# Test that merge_inner's ignore zero paramter is effective
tree_a =self.make_branch_and_tree('a')
tree_a.commit(message="hello")
dir_b = tree_a.bzrdir.sprout('b')
tree_b = dir_b.open_workingtree()
tree_a.commit(message="hello again")
log = StringIO()
merge_inner(tree_b.branch, tree_a, tree_b.basis_tree(),
this_tree=tree_b, ignore_zero=True)
log = self._get_log()
self.failUnless('All changes applied successfully.\n' not in log)
tree_b.revert([])
merge_inner(tree_b.branch, tree_a, tree_b.basis_tree(),
this_tree=tree_b, ignore_zero=False)
log = self._get_log()
self.failUnless('All changes applied successfully.\n' in log)
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