def test_respects_writable_mode_of_files(self, fs):
fs = MemoryFS()
write_file(fs, "file", u"foo")
fs.chmod("file", stat.S_IRUSR)
assert_file_content_equal(fs, "file", u"foo")
assert_open_raises(fs, "file", errno.EACCES, "a")
assert_open_raises(fs, "file", errno.EACCES, "w")
def test_writing_original_files_keeps_stored_file_unchanged(self, fs):
write_file(fs, 'testfile', u'dummy content')
cas = ContentAddressableStorage('cas', fs=fs)
key = cas.store('testfile')
del cas # Close
write_file(fs, 'testfile', u'replaced content')
cas = ContentAddressableStorage('cas', fs=fs)
assert_file_content_equal(fs, cas.get_path(key), u'dummy content')
def test_symlink(self, fs):
fs.mkdir("sub1")
fs.mkdir("sub2")
src = os.path.join("sub1", "src")
dest = os.path.join("sub2", "dest")
write_file(fs, src, u"dummy")
fs.symlink(src, dest)
with fs.open(dest, "a+") as f:
f.seek(0, os.SEEK_SET)
assert f.read() == u"dummy"
f.write(u" content")
assert_file_content_equal(fs, src, u"dummy content")