def test_read_partition(self):
msg = dict(action='open', name='entry1', parameters={})
resp_msg, = self.make_post_request(msg)
source_id = resp_msg['source_id']
msg2 = dict(action='read', partition=1, source_id=source_id,
accepted_formats=['msgpack'])
resp_msgs = self.make_post_request(msg2)
self.assertEqual(len(resp_msgs), 1)
ser = MsgPackSerializer()
part = resp_msgs[0]
self.assertEqual(part['format'], 'msgpack')
self.assertEqual(part['compression'], 'none')
self.assertEqual(part['container'], 'dataframe')
data = ser.decode(part['data'], container='dataframe')
self.assertEqual(len(data), 4)
def test_read_part_compressed(self):
msg = dict(action='open', name='entry1', parameters={})
resp_msg, = self.make_post_request(msg)
source_id = resp_msg['source_id']
msg2 = dict(action='read', source_id=source_id,
accepted_formats=['msgpack'], accepted_compression=['gzip'],
partition=0)
resp_msgs = self.make_post_request(msg2)
self.assertEqual(len(resp_msgs), 1)
ser = MsgPackSerializer()
comp = GzipCompressor()
for chunk in resp_msgs:
self.assertEqual(chunk['format'], 'msgpack')
self.assertEqual(chunk['compression'], 'gzip')
self.assertEqual(chunk['container'], 'dataframe')
data = ser.decode(comp.decompress(chunk['data']),
container='dataframe')
self.assertEqual(len(data), 4)
