def test_window_construction_init():
"""Test the initalization of WindowConstruction objects and basic properties."""
lowe_glass = EnergyWindowMaterialGlazing('Low-e Glass', 0.00318, 0.4517,
0.359, 0.714, 0.207, 0, 0.84,
0.046578, 1.0)
clear_glass = EnergyWindowMaterialGlazing('Clear Glass', 0.005715,
0.770675, 0.07, 0.8836, 0.0804,
0, 0.84, 0.84, 1.0)
gap = EnergyWindowMaterialGas('air gap', thickness=0.0127)
double_low_e = WindowConstruction('Double Low-E Window',
[lowe_glass, gap, clear_glass])
double_clear = WindowConstruction('Double Clear Window',
[clear_glass, gap, clear_glass])
triple_clear = WindowConstruction(
'Triple Clear Window',
[clear_glass, gap, clear_glass, gap, clear_glass])
double_low_e_dup = double_low_e.duplicate()
str(double_low_e) # test the string representation of the construction
assert double_low_e.name == double_low_e_dup.name == 'Double Low-E Window'
assert len(double_low_e.materials) == len(double_low_e_dup.materials) == 3
assert double_low_e.r_value == double_low_e_dup.r_value == \
pytest.approx(0.41984, rel=1e-2)
assert double_low_e.u_value == double_low_e_dup.u_value == \
pytest.approx(2.3818, rel=1e-2)
assert double_low_e.u_factor == double_low_e_dup.u_factor == \
pytest.approx(1.69802, rel=1e-2)
assert double_low_e.r_factor == double_low_e_dup.r_factor == \
pytest.approx(0.588919, rel=1e-2)
assert double_low_e.inside_emissivity == \
double_low_e_dup.inside_emissivity == 0.84
assert double_low_e.outside_emissivity == \
double_low_e_dup.outside_emissivity == 0.84
assert double_low_e.unshaded_solar_transmittance == \
double_low_e_dup.unshaded_solar_transmittance == 0.4517 * 0.770675
assert double_low_e.unshaded_visible_transmittance == \
double_low_e_dup.unshaded_visible_transmittance == 0.714 * 0.8836
assert double_low_e.glazing_count == double_low_e_dup.glazing_count == 2
assert double_low_e.gap_count == double_low_e_dup.gap_count == 1
assert double_low_e.has_shade is double_low_e_dup.has_shade is False
assert double_low_e.shade_location is double_low_e_dup.shade_location is None
assert double_clear.u_factor == pytest.approx(2.72, rel=1e-2)
assert double_low_e.u_factor == pytest.approx(1.698, rel=1e-2)
assert triple_clear.u_factor == pytest.approx(1.757, rel=1e-2)
def test_window_equivalency():
"""Test the equality of a window construction to another."""
clear_glass = EnergyWindowMaterialGlazing('Clear Glass', 0.005715,
0.770675, 0.07, 0.8836, 0.0804,
0, 0.84, 0.84, 1.0)
gap = EnergyWindowMaterialGas('air gap', thickness=0.0127)
double_clear = WindowConstruction('Clear Window',
[clear_glass, gap, clear_glass])
double_clear_2 = double_clear.duplicate()
triple_clear = WindowConstruction(
'Clear Window', [clear_glass, gap, clear_glass, gap, clear_glass])
double_clear_3 = WindowConstruction('Double Clear Window',
[clear_glass, gap, clear_glass])
collection = [double_clear, double_clear, double_clear_2, triple_clear]
assert len(set(collection)) == 2
assert double_clear == double_clear_2
assert double_clear != triple_clear
assert double_clear != double_clear_3
double_clear_2.name = 'Cool Window'
assert double_clear != double_clear_2