def test_in_process_start(self):
"""
Test starting the parser in a state in the middle of processing, in the middle of a block.
"""
log.debug('Starting test_in_process_start')
#[2818:2982] contains the first WE SIO header
new_state = {StateKey.IN_PROCESS_DATA:[[2818,2982,3,0], [4059,4673,18,0]],
StateKey.UNPROCESSED_DATA:[[2818,2982], [4058,5000]], StateKey.FILE_SIZE:[] }
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1.dat'))
self.parser = FlordLWfpSioMuleParser(self.config, new_state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_result(result, [[2818,2982,3,1], [4059,4673,18,0]],
[[2818,2982], [4058,5000]], self.particle_1a)
result = self.parser.get_records(2)
self.assertEqual(result[0], self.particle_1b)
self.assertEqual(result[1], self.particle_1c)
self.assert_state([[4059,4673,18,0]], [[4058,5000]])
self.assertEqual(self.publish_callback_value[-1], self.particle_1c)
result = self.parser.get_records(1)
self.assert_result(result, [[4059,4673,18,1]],
[[4058,5000]], self.particle_2a)
self.stream_handle.close()
def test_set_state(self):
"""
Test changing to a new state after initializing the parser and reading data,
as if new data has been found and the state has changed
"""
log.debug('-------------------------------------------------Starting test_set_state')
self.state = {StateKey.UNPROCESSED_DATA:[[4059, 4673]], StateKey.IN_PROCESS_DATA:[],
StateKey.FILE_SIZE:[] }
new_state = {StateKey.UNPROCESSED_DATA:[[2818, 2982], [4058, 4059], [4673, 5000]],
StateKey.IN_PROCESS_DATA:[[2818, 2982, 3, 0]], StateKey.FILE_SIZE:[]}
self.stream_handle = open(os.path.join(RESOURCE_PATH,'node58p1.dat'))
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
# only 18 left in file at this point. Drain them, and make sure the next fetch fails
result = self.parser.get_records(17)
self.assert_state([[4059, 4673, 18, 17]],[[4059, 4673]])
result = self.parser.get_records(1)
result = self.parser.get_records(1)
self.assertEqual(result, [])
self.parser.set_state(new_state)
result = self.parser.get_records(1)
self.assert_result(result,
[[2818, 2982, 3, 1]],
[[2818, 2982], [4058, 4059], [4673, 5000]],
self.particle_1a)
self.stream_handle.close()
def test_simple(self):
"""
Read test data and pull out data particles one at a time.
Assert that the results are those we expected.
"""
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1.dat'))
# NOTE: using the unprocessed data state of 0,5000 limits the file to reading
# just 5000 bytes, so even though the file is longer, it only reads the first
# 5000
self.state = {StateKey.UNPROCESSED_DATA:[[0, 5000]], StateKey.IN_PROCESS_DATA:[],
StateKey.FILE_SIZE:[]}
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_result(result, [[2818,2982,3,1], [4059,4673,18,0]],
[[2818,2982], [4058,5000]], self.particle_1a)
result = self.parser.get_records(1)
self.assert_result(result, [[2818,2982,3,2], [4059,4673,18,0]],
[[2818,2982], [4058,5000]], self.particle_1b)
result = self.parser.get_records(1)
self.assert_result(result, [[4059,4673,18,0]],
[[4058,5000]], self.particle_1c)
result = self.parser.get_records(1)
self.assert_result(result, [[4059,4673,18,1]],
[[4058,5000]], self.particle_2a)
self.stream_handle.close()
def test_update(self):
"""
Test a file that has a section of data replaced by 0s, as if a block of
data has not yet been received.
"""
log.debug('------------------------------------------------------Starting test_update')
self.state = {StateKey.UNPROCESSED_DATA:[[0, 5000]], StateKey.IN_PROCESS_DATA:[],
StateKey.FILE_SIZE:[]}
# this file has first block of WE data replaced by 0s
self.stream_handle = open(os.path.join(RESOURCE_PATH,
'node58p1_1stWE0d.dat'))
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_result(result,
[[4059,4673,18,1]],
[[2818, 2982], [4058, 5000]],
self.particle_2a)
self.stream_handle.close()
next_state = self.parser._state
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1.dat'))
self.parser = FlordLWfpSioMuleParser(self.config, next_state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
# there are 18 valid records in the second WE chunk. We read one above, now we need
# to drain the remaining 17 to trigger the reparsing of the earlier block
for kk in range(0, 17):
result = self.parser.get_records(1)
# the next fetch should find the now-replaced earlier data
result = self.parser.get_records(1)
self.assert_result(result,
[[2818, 2982, 3, 1]],
[[2818, 2982], [4058, 4059], [4673, 5000]],
self.particle_1a)
result = self.parser.get_records(1)
self.assert_result(result,
[[2818, 2982, 3, 2]],
[[2818, 2982], [4058, 4059], [4673, 5000]],
self.particle_1b)
self.stream_handle.close()
def test_bad_data(self):
"""
Ensure that the bad record ( in this case a currupted status message ) causes a sample exception
"""
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1_BADFLAGS.dat'))
self.state = {StateKey.UNPROCESSED_DATA:[[0, 5000]],
StateKey.IN_PROCESS_DATA:[], StateKey.FILE_SIZE:[]}
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_(isinstance(self.exception_callback_value, UnexpectedDataException))
def test_bad_e_record(self):
"""
Ensure that the bad record causes a sample exception. The file 'bad_e_record.dat'
includes a record containing one byte less than the expected 30 for the
flord_l_wfp_sio_mule. The 'Number of Data Bytes' and the 'CRC Checksum' values in the
SIO Mule header have been modified accordingly.
"""
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'bad_e_record.dat'))
self.state = {StateKey.UNPROCESSED_DATA:[[0, 5000]],
StateKey.IN_PROCESS_DATA:[], StateKey.FILE_SIZE:[]}
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_(isinstance(self.exception_callback_value, UnexpectedDataException))
def _build_parser(self, parser_state, infile):
"""
Build and return the parser
"""
config = self._parser_config
config.update({
DataSetDriverConfigKeys.PARTICLE_MODULE:
'mi.dataset.parser.flord_l_wfp_sio_mule',
DataSetDriverConfigKeys.PARTICLE_CLASS:
'FlordLWfpSioMuleParserDataParticle'
})
log.debug("My Config: %s", config)
self._parser = FlordLWfpSioMuleParser(config, parser_state, infile,
self._save_parser_state,
self._data_callback,
self._sample_exception_callback)
return self._parser
def _build_telemetered_parser(self, parser_state, stream_in):
"""
Build and return the telemetered parser
@param parser_state starting parser state to pass to parser
@param stream_in Handle of open file to pass to parser
"""
config = self._parser_config.get(DataSourceKey.FLORD_L_WFP_SIO_MULE)
config.update({
DataSetDriverConfigKeys.PARTICLE_MODULE:
'mi.dataset.parser.flord_l_wfp_sio_mule',
DataSetDriverConfigKeys.PARTICLE_CLASS:
'FlordLWfpSioMuleParserDataParticle'
})
log.debug("My Config: %s", config)
parser = FlordLWfpSioMuleParser(
config, parser_state, stream_in,
lambda state: self._save_parser_state(
state, DataSourceKey.FLORD_L_WFP_SIO_MULE),
self._data_callback, self._sample_exception_callback)
return parser
def test_mid_state_start(self):
"""
Test starting the parser in a state in the middle of processing, no in_process_data.
"""
log.debug('Starting test_mid_state_start')
new_state = {StateKey.IN_PROCESS_DATA:[],
StateKey.UNPROCESSED_DATA:[[2818,2982], [4058,5000]], StateKey.FILE_SIZE:[]}
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1.dat'))
self.parser = FlordLWfpSioMuleParser(self.config, new_state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(1)
self.assert_result(result, [[2818,2982,3,1]],
[[2818,2982], [4058,5000]], self.particle_1a)
result = self.parser.get_records(1)
self.assert_result(result, [[2818,2982,3,2]],
[[2818,2982], [4058,5000]], self.particle_1b)
result = self.parser.get_records(1)
self.assert_result(result, [], [[4058,5000]], self.particle_1c)
result = self.parser.get_records(1)
self.assert_result(result, [[4059,4673,18,1]], [[4058,5000]], self.particle_2a)
self.stream_handle.close()
def test_long_stream(self):
"""
Test a long stream
"""
log.debug("Start of test_long_stream.")
self.stream_handle = open(os.path.join(RESOURCE_PATH, 'node58p1.dat'))
self.stream_handle.seek(0)
self.state = {StateKey.UNPROCESSED_DATA:[[0, 5000]], StateKey.IN_PROCESS_DATA:[],
StateKey.FILE_SIZE:[]}
self.parser = FlordLWfpSioMuleParser(self.config, self.state, self.stream_handle,
self.state_callback, self.pub_callback, self.exception_callback)
result = self.parser.get_records(12)
self.assertEqual(result[0], self.particle_1a)
self.assertEqual(result[1], self.particle_1b)
self.assertEqual(result[2], self.particle_1c)
self.assertEqual(result[3], self.particle_2a)
self.assertEqual(result[-2], self.particle_1k)
self.assertEqual(result[-1], self.particle_1l)
self.assertEqual(self.publish_callback_value[-2], self.particle_1k)
self.assertEqual(self.publish_callback_value[-1], self.particle_1l)
self.assert_state([[4059,4673,18,9]],[[4058,5000]])
self.stream_handle.close()
