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# test_tree.py
# Copyright (C) 2008, 2009 Michael Trier (mtrier@gmail.com) and contributors
#
# This module is part of GitPython and is released under
# the BSD License: http://www.opensource.org/licenses/bsd-license.php
from lib import *
from git.objects.fun import (
traverse_tree_recursive,
traverse_trees_recursive
)
from git.objects.blob import Blob
from git.objects.tree import Tree
from cStringIO import StringIO
import os
class TestTree(TestObjectBase):
def test_serializable(self):
# tree at the given commit contains a submodule as well
roottree = self.rorepo.tree('6c1faef799095f3990e9970bc2cb10aa0221cf9c')
for item in roottree.traverse(ignore_self=False):
if item.type != Tree.type:
continue
# END skip non-trees
tree = item
# trees have no dict
self.failUnlessRaises(AttributeError, setattr, tree, 'someattr', 1)
orig_data = tree.data_stream.read()
orig_cache = tree._cache
stream = StringIO()
tree._serialize(stream)
assert stream.getvalue() == orig_data
stream.seek(0)
testtree = Tree(self.rorepo, Tree.NULL_BIN_SHA, 0, '')
testtree._deserialize(stream)
assert testtree._cache == orig_cache
# TEST CACHE MUTATOR
mod = testtree.cache
self.failUnlessRaises(ValueError, mod.add, "invalid sha", 0, "name")
self.failUnlessRaises(ValueError, mod.add, Tree.NULL_HEX_SHA, 0, "invalid mode")
self.failUnlessRaises(ValueError, mod.add, Tree.NULL_HEX_SHA, tree.mode, "invalid/name")
# add new item
name = "fake_dir"
mod.add(testtree.NULL_HEX_SHA, tree.mode, name)
assert name in testtree
# its available in the tree immediately
assert isinstance(testtree[name], Tree)
# adding it again will not cause multiple of them to be presents
cur_count = len(testtree)
mod.add(testtree.NULL_HEX_SHA, tree.mode, name)
assert len(testtree) == cur_count
# fails with a different sha - name exists
hexsha = "1"*40
self.failUnlessRaises(ValueError, mod.add, hexsha, tree.mode, name)
# force it - replace existing one
mod.add(hexsha, tree.mode, name, force=True)
assert testtree[name].hexsha == hexsha
assert len(testtree) == cur_count
# unchecked addition always works, even with invalid items
invalid_name = "hi/there"
mod.add_unchecked(hexsha, 0, invalid_name)
assert len(testtree) == cur_count + 1
del(mod[invalid_name])
assert len(testtree) == cur_count
# del again, its fine
del(mod[invalid_name])
# have added one item, we are done
mod.set_done()
mod.set_done() # multiple times are okay
# serialize, its different now
stream = StringIO()
testtree._serialize(stream)
stream.seek(0)
assert stream.getvalue() != orig_data
# replaces cache, but we make sure of it
del(testtree._cache)
testtree._deserialize(stream)
assert name in testtree
assert invalid_name not in testtree
# END for each item in tree
def test_traverse(self):
root = self.rorepo.tree('0.1.6')
num_recursive = 0
all_items = list()
for obj in root.traverse():
if "/" in obj.path:
num_recursive += 1
assert isinstance(obj, (Blob, Tree))
all_items.append(obj)
# END for each object
assert all_items == root.list_traverse()
# limit recursion level to 0 - should be same as default iteration
assert all_items
assert 'CHANGES' in root
assert len(list(root)) == len(list(root.traverse(depth=1)))
# only choose trees
trees_only = lambda i,d: i.type == "tree"
trees = list(root.traverse(predicate = trees_only))
assert len(trees) == len(list( i for i in root.traverse() if trees_only(i,0) ))
# test prune
lib_folder = lambda t,d: t.path == "lib"
pruned_trees = list(root.traverse(predicate = trees_only,prune = lib_folder))
assert len(pruned_trees) < len(trees)
# trees and blobs
assert len(set(trees)|set(root.trees)) == len(trees)
assert len(set(b for b in root if isinstance(b, Blob)) | set(root.blobs)) == len( root.blobs )
subitem = trees[0][0]
assert "/" in subitem.path
assert subitem.name == os.path.basename(subitem.path)
# assure that at some point the traversed paths have a slash in them
found_slash = False
for item in root.traverse():
assert os.path.isabs(item.abspath)
if '/' in item.path:
found_slash = True
# END check for slash
# slashes in paths are supported as well
assert root[item.path] == item == root/item.path
# END for each item
assert found_slash
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