def test_material_nomass_invalid():
"""Test the initialization of EnergyMaterial objects with invalid properties."""
insul_r2 = EnergyMaterialNoMass('Insulation [R-2]', 2)
with pytest.raises(TypeError):
insul_r2.identifier = ['test_identifier']
with pytest.raises(AssertionError):
insul_r2.r_value = -1
with pytest.raises(AssertionError):
insul_r2.roughness = 'Medium'
with pytest.raises(AssertionError):
insul_r2.thermal_absorptance = 2
with pytest.raises(AssertionError):
insul_r2.solar_absorptance = 2
with pytest.raises(AssertionError):
insul_r2.visible_absorptance = 2
with pytest.raises(AssertionError):
insul_r2.u_value = -1
def test_material_nomass_init():
"""Test the initialization of EnergyMaterialNoMass and basic properties."""
insul_r2 = EnergyMaterialNoMass('Insulation R-2', 2, 'MediumSmooth', 0.95,
0.75, 0.8)
str(insul_r2) # test the string representation of the material
insul_r2_dup = insul_r2.duplicate()
assert insul_r2.identifier == insul_r2_dup.identifier == 'Insulation R-2'
assert insul_r2.r_value == insul_r2_dup.r_value == 2
assert insul_r2.roughness == insul_r2_dup.roughness == 'MediumSmooth'
assert insul_r2.thermal_absorptance == insul_r2_dup.thermal_absorptance == 0.95
assert insul_r2.solar_absorptance == insul_r2_dup.solar_absorptance == 0.75
assert insul_r2.visible_absorptance == insul_r2_dup.visible_absorptance == 0.8
assert insul_r2.u_value == pytest.approx(0.5, rel=1e-2)
assert insul_r2.r_value == pytest.approx(2, rel=1e-2)
insul_r2.r_value = 3
assert insul_r2.r_value == 3