def test_depth_class_should_calculate_pressure_from_depth():
d = Depth()
depth = 100.00 # m
density = 1025.0 #kg/m^3
expected_pressure = 1004.54 #kPa
pressure = d.calculate_pressure(depth, density)
assert np.isclose(expected_pressure, pressure, rtol=1e-03, atol=1e-05, equal_nan=False)
def test_depth_class_should_calculate_depth_from_pressure():
d = Depth()
pressure = 12000.0 # kPa
density = 1025.0 # kg/m^3
expected_depth = 1193.81 # m
depth = d.calculate_depth(pressure, density)
print(depth)
assert np.isclose(expected_depth, depth, rtol=1e-03, atol=1e-05, equal_nan=False)
def test_depth_class_property_pressure():
d = Depth(depth=250.0)
expected_pressure = 2511.4
pressure = d.pressure
assert np.isclose(expected_pressure, pressure, rtol=1e-03, atol=1e-05, equal_nan=False)
def test_depth_class_should_initialize_to_depth_zero():
d = Depth()
assert 0 == d._depth
def test_depth_class_calculate_depth_should_fail_for_invalid_density():
d = Depth()
with pytest.raises(ValueError):
d.calculate_depth(40, 'C')
def test_depth_class_calculate_depth_should_fail_for_invalid_pressure():
d = Depth()
with pytest.raises(ValueError):
d.calculate_depth('A',40)
def test_depth_class_calculate_pressure_should_fail_for_invalid_density():
d = Depth()
with pytest.raises(ValueError):
d.calculate_pressure(20, 'B')
def test_depth_class_should_read_depth_as_param():
d = Depth()
assert 0 == d.depth