def test_init_array_overwrite_group(self):
# setup
path = 'foo/bar'
store = self.create_store()
store[path + '/' + group_meta_key] = encode_group_metadata()
# don't overwrite
with pytest.raises(ValueError):
init_array(store, shape=1000, chunks=100, path=path)
# do overwrite
try:
init_array(store,
shape=1000,
chunks=100,
dtype='i4',
path=path,
overwrite=True)
except NotImplementedError:
pass
else:
assert (path + '/' + group_meta_key) not in store
assert (path + '/' + array_meta_key) in store
meta = decode_array_metadata(store[path + '/' + array_meta_key])
assert ZARR_FORMAT == meta['zarr_format']
assert (1000, ) == meta['shape']
assert (100, ) == meta['chunks']
assert np.dtype('i4') == meta['dtype']
def _init_group_metadata(store, overwrite=False, path=None, chunk_store=None):
# guard conditions
if overwrite:
# attempt to delete any pre-existing items in store
rmdir(store, path)
if chunk_store is not None and chunk_store != store:
rmdir(chunk_store, path)
elif contains_array(store, path):
err_contains_array(path)
elif contains_group(store, path):
err_contains_group(path)
# initialize metadata
# N.B., currently no metadata properties are needed, however there may
# be in future
meta = dict()
key = _path_to_prefix(path) + group_meta_key
store[key] = encode_group_metadata(meta)
# initialize attributes
key = _path_to_prefix(path) + attrs_key
store[key] = json.dumps(dict()).encode('ascii')
def _init_group_metadata(store, overwrite=False, path=None, chunk_store=None):
# guard conditions
if overwrite:
# attempt to delete any pre-existing items in store
rmdir(store, path)
if chunk_store is not None and chunk_store != store:
rmdir(chunk_store, path)
elif contains_array(store, path):
err_contains_array(path)
elif contains_group(store, path):
err_contains_group(path)
# initialize metadata
# N.B., currently no metadata properties are needed, however there may
# be in future
meta = dict()
key = _path_to_prefix(path) + group_meta_key
store[key] = encode_group_metadata(meta)
# initialize attributes
key = _path_to_prefix(path) + attrs_key
store[key] = json.dumps(dict()).encode('ascii')
def test_init_array_overwrite_group(self):
# setup
path = 'foo/bar'
store = self.create_store()
store[path + '/' + group_meta_key] = encode_group_metadata()
# don't overwrite
with assert_raises(ValueError):
init_array(store, shape=1000, chunks=100, path=path)
# do overwrite
try:
init_array(store, shape=1000, chunks=100, dtype='i4', path=path,
overwrite=True)
except NotImplementedError:
pass
else:
assert (path + '/' + group_meta_key) not in store
assert (path + '/' + array_meta_key) in store
meta = decode_array_metadata(store[path + '/' + array_meta_key])
eq(ZARR_FORMAT, meta['zarr_format'])
eq((1000,), meta['shape'])
eq((100,), meta['chunks'])
eq(np.dtype('i4'), meta['dtype'])