def test_build_tree(self):
"""Test building works using a MemoryTree."""
branch = self.make_branch('branch')
tree = MemoryTree.create_on_branch(branch)
builder = TreeBuilder()
builder.start_tree(tree)
builder.build(['foo', "bar/", "bar/file"])
self.assertEqual(b'contents of foo\n', tree.get_file('foo').read())
self.assertEqual(b'contents of bar/file\n',
tree.get_file('bar/file').read())
builder.finish_tree()
def test_finish_tree_unlocks(self):
builder = TreeBuilder()
tree = FakeTree()
builder.start_tree(tree)
builder.finish_tree()
self.assertEqual(["lock_tree_write", "unlock"], tree._calls)