def test_exposure_parser_exposure_time():
"""Test the behaviour of the exposure time/image number parser's exposure flag."""
for flag in "-e", "--exposure-time":
args = exposure_parser.parse_args([flag, ".1"])
assert args.exposure_time == pint.Quantity(100, "ms")
assert args.num_images is None
for exposure in ".1s", "ms", "100µs":
args = exposure_parser.parse_args(["-e", exposure])
assert args.exposure_time == pint.Quantity(exposure)
def test_energy_units_issue79(fourc):
# issue #79
fourc.energy_units.put("eV")
fourc.energy_offset.put(0)
eV = 1746
fourc.energy.put(eV)
numpy.testing.assert_almost_equal(fourc.calc.energy, eV / 1000)
numpy.testing.assert_almost_equal(
# fmt: off
pint.Quantity(fourc.calc.energy, "keV").to(fourc.energy_units.get()).magnitude,
fourc.energy.get(),
# fmt: on
)
def test_vapor_pressure(self, simple_material, temperature):
T = temperature.to("celsius").magnitude
value = 2.71828**(1 + 2 / (3 + T))
pressure = pint.Quantity(pytest.approx(value), "Pa")
assert pressure == simple_material.vapor_pressure(temperature)
def test_vaporization_heat_loaded(self, simple_material):
vh = simple_material.vaporization_heat
assert pint.Quantity("1 british_thermal_unit/lb") == vh
def test_molar_mass_loaded(self, simple_material):
mm = simple_material.molar_mass
assert pint.Quantity("1 g/mol") == mm
def temperature(self):
return (pint.Quantity("293 kelvin"))
def test_change_component_list_moles(self, component_list):
addition = pint.Quantity("300 moles")
component_list["simple material"].moles += addition
assert component_list["simple material"].moles == addition
