def test_pattern_no_trace():
"""Test for the PatternGenerator class.
This test will test the case when no analyzer is used. Exception
should be raised when users want to show the waveform.
"""
ol.download()
num_samples = 128
loopback_sent = build_loopback_pattern(num_samples)
pattern_generator = PatternGenerator(mb_info)
pattern_generator.trace(use_analyzer=False,
num_analyzer_samples=num_samples)
exception_raised = False
try:
pattern_generator.setup(loopback_sent,
stimulus_group_name='stimulus',
analysis_group_name='analysis')
pattern_generator.run()
pattern_generator.show_waveform()
except ValueError:
exception_raised = True
assert exception_raised, 'Should raise exception for show_waveform().'
pattern_generator.reset()
del pattern_generator
def test_pattern_random():
"""Test for the PatternGenerator class.
This test will examine 1 sample, and a maximum number of samples.
For theses cases, random signals will be used, and all the
pins will be used to build the pattern.
"""
ol.download()
for num_samples in [1, MAX_NUM_PATTERN_SAMPLES]:
loopback_sent = build_random_pattern(num_samples)
pattern_generator = PatternGenerator(mb_info)
pattern_generator.trace(use_analyzer=True,
num_analyzer_samples=num_samples)
pattern_generator.setup(loopback_sent,
stimulus_group_name='stimulus',
analysis_group_name='analysis',
frequency_mhz=100)
pattern_generator.run()
loopback_recv = pattern_generator.waveform.waveform_dict
list1 = list2 = list3 = list()
for wavelane_group in loopback_sent['signal']:
if wavelane_group and wavelane_group[0] == 'stimulus':
for i in wavelane_group[1:]:
temp = deepcopy(i)
temp['wave'] = wave_to_bitstring(i['wave'])
list1.append(temp)
for wavelane_group in loopback_recv['signal']:
if wavelane_group and wavelane_group[0] == 'stimulus':
for i in wavelane_group[1:]:
temp = deepcopy(i)
temp['wave'] = wave_to_bitstring(i['wave'])
list2.append(temp)
elif wavelane_group and wavelane_group[0] == 'analysis':
for i in wavelane_group[1:]:
temp = deepcopy(i)
temp['wave'] = wave_to_bitstring(i['wave'])
list3.append(temp)
assert list1 == list2, \
'Stimulus not equal in generated and captured patterns.'
assert list2 == list3, \
'Stimulus not equal to analysis in captured patterns.'
pattern_generator.stop()
pattern_generator.reset()
del pattern_generator
def test_pattern_state():
"""Test for the PatternGenerator class.
This test will test a set of loopback signals. Each lane is
simulating a clock of a specific frequency.
"""
ol.download()
print("\nDisconnect all the pins.")
input("Hit enter after done ...")
num_samples = 128
loopback_sent = build_loopback_pattern(num_samples)
pattern_generator = PatternGenerator(mb_info)
assert pattern_generator.status == 'RESET'
pattern_generator.trace(use_analyzer=True,
num_analyzer_samples=num_samples)
pattern_generator.setup(loopback_sent,
stimulus_group_name='stimulus',
analysis_group_name='analysis')
assert pattern_generator.status == 'READY'
pattern_generator.run()
assert pattern_generator.status == 'RUNNING'
loopback_recv = pattern_generator.waveform.waveform_dict
list1 = list2 = list3 = list()
for wavelane_group in loopback_sent['signal']:
if wavelane_group and wavelane_group[0] == 'stimulus':
list1 = wavelane_group[1:]
for wavelane_group in loopback_recv['signal']:
if wavelane_group and wavelane_group[0] == 'stimulus':
list2 = wavelane_group[1:]
elif wavelane_group and wavelane_group[0] == 'analysis':
list3 = wavelane_group[1:]
assert list1 == list2, \
'Stimulus not equal in generated and captured patterns.'
assert list2 == list3, \
'Stimulus not equal to analysis in captured patterns.'
pattern_generator.stop()
assert pattern_generator.status == 'READY'
pattern_generator.reset()
assert pattern_generator.status == 'RESET'
del pattern_generator