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python-metar/test/test_direction.py at main · python-metar/python-metar · GitHub

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"""Test direction."""

import pytest

from metar.Datatypes import direction

def test_usage():

"""Test basic usage."""

assert direction("90").value() == 90.0

assert direction(90).value() == 90.0

assert direction(90.0).value() == 90.0

assert direction("90").string() == "90 degrees"

assert direction("E").compass() == "E"

def test_error_checking():

"""Test that exceptions are raised."""

with pytest.raises(ValueError):

direction("North")

with pytest.raises(ValueError):

direction(-10)

with pytest.raises(ValueError):

direction("361")

def test_conversion():

"""Test conversion of str direction to numeric and back."""

assert direction("N").value() == 0.0

assert direction("NNE").value() == 22.5

assert direction("NE").value() == 45.0

assert direction("ENE").value() == 67.5

assert direction("E").value() == 90.0

assert direction("ESE").value() == 112.5

assert direction("SE").value() == 135.0

assert direction("SSE").value() == 157.5

assert direction("S").value() == 180.0

assert direction("SSW").value() == 202.5

assert direction("SW").value() == 225.0

assert direction("WSW").value() == 247.5

assert direction("W").value() == 270.0

assert direction("WNW").value() == 292.5

assert direction("NW").value() == 315.0

assert direction("NNW").value() == 337.5

assert direction("0").compass() == "N"

assert direction("5").compass() == "N"

assert direction("355").compass() == "N"

assert direction("20").compass() == "NNE"

assert direction("60").compass() == "ENE"

assert direction("247.5").compass() == "WSW"

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