def test_mid_state_start(self):
"""
This test exercises setting the state past one chunk, retrieving particles and verify the result of one
of the particles.
"""
# Using two concatenated msgpack files to simulate two chunks.
file_path = os.path.join(RESOURCE_PATH, 'state_test.mpk')
stream_handle = open(file_path, 'rb')
stat_info = os.stat(file_path)
# Moving the file position to the end of the first chunk
state = {StateKey.PARTICLES_RETURNED: 193}
parser = Vel3dAMmpCdsParser(self.config, state, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(4)
log.info(len(particles))
# Should end up with 4 particles
self.assertTrue(len(particles) == 4)
test_data = self.get_dict_from_yml('second_data.yml')
for n in range(3):
self.assert_result(test_data['data'][n], particles[n])
stream_handle.close()
def test_get_many(self):
"""
This test exercises retrieving 20 particles, verifying the particles, then retrieves 30 particles
and verifies the 30 particles.
"""
file_path = os.path.join(RESOURCE_PATH, 'first_data.mpk')
stream_handle = open(file_path, 'rb')
parser = Vel3dAMmpCdsParser(self.config, None, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(20)
# Should end up with 20 particles
self.assertTrue(len(particles) == 20)
test_data = self.get_dict_from_yml('first_data.yml')
for n in range(20):
self.assert_result(test_data['data'][n], particles[n])
particles = parser.get_records(30)
# Should end up with 30 particles
self.assertTrue(len(particles) == 30)
self.assert_result(test_data['data'][49], particles[29])
stream_handle.close()
def test_bad_data_two(self):
"""
This test verifies that a SampleException is raised when an entire msgpack buffer is not msgpack.
"""
file_path = os.path.join(RESOURCE_PATH, 'not-msg-pack.mpk')
stream_handle = open(file_path, 'rb')
parser = Vel3dAMmpCdsParser(self.config, None, stream_handle,
self.state_callback, self.pub_callback)
with self.assertRaises(SampleException):
parser.get_records(1)
stream_handle.close()
def _build_parser(self, stream_handle):
parser_config = {
DataSetDriverConfigKeys.PARTICLE_MODULE:
'mi.dataset.parser.vel3d_a_mmp_cds',
DataSetDriverConfigKeys.PARTICLE_CLASS:
'Vel3dAMmpCdsParserDataParticle'
}
parser = Vel3dAMmpCdsParser(parser_config, None, stream_handle,
lambda state, ingested: None,
lambda data: None,
self._exception_callback)
return parser
def test_bad_data_one(self):
"""
This test verifies that a SampleException is raised when msgpack data is malformed.
"""
file_path = os.path.join(RESOURCE_PATH,
'acm_1_20131124T005004_458-BAD.mpk')
stream_handle = open(file_path, 'rb')
parser = Vel3dAMmpCdsParser(self.config, None, stream_handle,
self.state_callback, self.pub_callback)
with self.assertRaises(SampleException):
parser.get_records(1)
stream_handle.close()
def test_long_stream(self):
"""
This test exercises retrieve approximately 200 particles.
"""
# Using two concatenated msgpack files to simulate two chunks to get more particles.
file_path = os.path.join(RESOURCE_PATH, 'acm_concat.mpk')
stream_handle = open(file_path, 'rb')
parser = Vel3dAMmpCdsParser(self.config, None, stream_handle,
self.state_callback, self.pub_callback)
# Attempt to retrieve 400 particles, but we will retrieve less
particles = parser.get_records(400)
# Should end up with 386 particles
self.assertTrue(len(particles) == 386)
stream_handle.close()
def _build_parser(self, parser_state, infile):
"""
Build and return the parser
"""
config = self._parser_config
config.update({
DataSetDriverConfigKeys.PARTICLE_MODULE:
'mi.dataset.parser.vel3d_a_mmp_cds',
DataSetDriverConfigKeys.PARTICLE_CLASS:
'Vel3dAMmpCdsParserDataParticle'
})
log.debug("My Config: %s", config)
_parser = Vel3dAMmpCdsParser(config, parser_state, infile,
self._save_parser_state,
self._data_callback,
self._sample_exception_callback)
if _parser is None:
raise ConfigurationException(
'vel3d_a_mmp_cds parser failed instantiation')
return _parser
def test_simple(self):
"""
This test reads in a small number of particles and verifies the result of one of the particles.
"""
file_path = os.path.join(RESOURCE_PATH, 'first_data.mpk')
stream_handle = open(file_path, 'rb')
parser = Vel3dAMmpCdsParser(self.config, None, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(6)
for particle in particles:
print particle.generate_dict()
test_data = self.get_dict_from_yml('first_data.yml')
for n in range(6):
self.assert_result(test_data['data'][n], particles[n])
stream_handle.close()
def test_set_state(self):
"""
This test exercises setting the state past one chunk, retrieving particles, verifying one
of the particles, and then setting the state back to the beginning, retrieving a few particles, and
verifying one of the particles.
"""
# Using the default mspack test file.
file_path = os.path.join(RESOURCE_PATH, 'state_test.mpk')
stream_handle = open(file_path, 'rb')
# Moving the file position to the end of the first chunk
state = {StateKey.PARTICLES_RETURNED: 193}
parser = Vel3dAMmpCdsParser(self.config, state, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(4)
# Should end up with 4 particles
self.assertTrue(len(particles) == 4)
log.info(parser._state)
stat_info = os.stat(file_path)
test_data = self.get_dict_from_yml('second_data.yml')
for n in range(4):
self.assert_result(test_data['data'][n], particles[n])
state = copy.copy(parser._state)
log.info(state)
parser = Vel3dAMmpCdsParser(self.config, state, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(4)
# Should end up with 4 particles
self.assertTrue(len(particles) == 4)
for n in range(4):
self.assert_result(test_data['data'][n + 4], particles[n])
# goes to start of file
state = {StateKey.PARTICLES_RETURNED: 0}
parser = Vel3dAMmpCdsParser(self.config, state, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(1000)
self.assertTrue(len(particles) == 213)
test_data = self.get_dict_from_yml('second_data.yml')
self.assert_result(test_data['data'][19], particles[212])
# Provide a bad particles returned
state = {StateKey.PARTICLES_RETURNED: 500}
parser = Vel3dAMmpCdsParser(self.config, state, stream_handle,
self.state_callback, self.pub_callback)
particles = parser.get_records(1)
self.assertTrue(len(particles) == 0)
stream_handle.close()