def test_convert_to_ip():
"""Test the method that converts the data to IP units."""
relative_path = './tests/assets/epw/chicago.epw'
epw = EPW(relative_path)
assert epw.dry_bulb_temperature.header.unit == 'C'
assert epw.dry_bulb_temperature.values[0] == -6.1
epw.convert_to_ip()
assert epw.dry_bulb_temperature.header.unit == 'F'
assert epw.dry_bulb_temperature.values[0] == pytest.approx(21.02, rel=1e-2)
epw.convert_to_si()
assert epw.dry_bulb_temperature.header.unit == 'C'
assert epw.dry_bulb_temperature.values[0] == pytest.approx(-6.1, rel=1e-5)
def test_save_converted_epw():
"""Test that the saved EPW always has SI units."""
relative_path = './tests/fixtures/epw/chicago.epw'
epw = EPW(relative_path)
epw.convert_to_ip()
modified_path = './tests/fixtures/epw/chicago_modified.epw'
epw.save(modified_path)
assert epw.dry_bulb_temperature.header.unit == 'F'
assert epw.dry_bulb_temperature.values[0] == pytest.approx(21.02, rel=1e-2)
new_epw = EPW(modified_path)
assert new_epw.dry_bulb_temperature.header.unit == 'C'
assert new_epw.dry_bulb_temperature.values[0] == pytest.approx(-6.1, rel=1e-5)
os.remove(modified_path)
