def test_crash_may_not_influence_following_tests(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
_ = Spectrometer.from_serial_number(backendlified_serial)
raise Exception("crash on purpose")
def test_read_spectrum(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
spec = Spectrometer.from_serial_number(backendlified_serial)
arr = spec.spectrum()
assert arr.shape == (2, spec.pixels)
def test_read_serial_number(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
spec = Spectrometer.from_serial_number(backendlified_serial)
serial = spec.serial_number
assert len(serial) > 0
def test_max_intensity(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
spec = Spectrometer.from_serial_number(backendlified_serial)
value = spec.max_intensity
assert isinstance(value, float)
assert 0 < value < 1e8
def test_integration_time_limits(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
spec = Spectrometer.from_serial_number(backendlified_serial)
low, high = spec.integration_time_micros_limits
assert isinstance(low, int)
assert isinstance(high, int)
assert 0 < low < high < 2**64
def test_trigger_mode(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
exc = Spectrometer._backend.SeaBreezeError
spec = Spectrometer.from_serial_number(backendlified_serial)
spec.trigger_mode(0x00) # <- normal mode
with pytest.raises(exc):
spec.trigger_mode(0xF0) # <- should be unsupported for all specs
# test again to see if the bus is locked
spec.trigger_mode(0x00) # <- normal mode
def test_correct_dark_pixels(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
# noinspection PyProtectedMember
SeaBreezeError = Spectrometer._backend.SeaBreezeError
spec = Spectrometer.from_serial_number(backendlified_serial)
try:
arr = spec.intensities(correct_dark_counts=True)
except SeaBreezeError:
pytest.skip("does not support dark counts")
else:
assert arr.size == spec.pixels
def test_integration_time(backendlified_serial):
devices = list(list_devices())
if len(devices) == 0:
pytest.skip("no supported device connected")
exc = Spectrometer._backend.SeaBreezeError
spec = Spectrometer.from_serial_number(backendlified_serial)
with pytest.raises(exc):
# fail because too low
spec.integration_time_micros(0)
with pytest.raises(exc):
# fail because too large
spec.integration_time_micros(2**62)
with pytest.raises(exc):
# fail because too large long overflow
spec.integration_time_micros(2**64)
spec.integration_time_micros(10000)
def test_cant_find_serial():
exc = Spectrometer._backend.SeaBreezeError
with pytest.raises(exc):
Spectrometer.from_serial_number("i-do-not-exist")