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Fix weather unit tests for get_u and get_v #191

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Fix weather unit tests for get_u and get_v #191

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40 changes: 29 additions & 11 deletions tests/test_weather.py
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Original file line number Diff line number Diff line change
@@ -1,24 +1,42 @@
import math

import pytest

from WeatherRoutingTool.weather import WeatherCond


SQRT2_OVER_2 = math.sqrt(2) / 2


@pytest.mark.parametrize("u,v,theta_res", [(-1, -1, 45), (1, -1, 315), (1, 1, 225), (-1, 1, 135)])
def test_theta_from_uv(u, v, theta_res):
theta_test = WeatherCond.get_theta_from_uv(u, v)

assert theta_test == pytest.approx(theta_res)


@pytest.mark.parametrize("theta,windspeed,u_res", [(45, 1, -1), (315, 1, 1), (225, 1, 1), (135, 1, -1)])
def get_u(theta, windspeed):
@pytest.mark.parametrize(
"theta,windspeed,u_res",
[
(45, 1, -SQRT2_OVER_2),
(315, 1, SQRT2_OVER_2),
(225, 1, SQRT2_OVER_2),
(135, 1, -SQRT2_OVER_2),
],
)
def test_get_u(theta, windspeed, u_res):
u_test = WeatherCond.get_u(theta, windspeed)

assert u_test == pytest.approx(u_test)


@pytest.mark.parametrize("theta,windspeed,u_res", [(45, 1, -1), (315, 1, -1), (225, 1, 1), (135, 1, 1)])
def get_v(theta, windspeed):
assert u_test == pytest.approx(u_res)


@pytest.mark.parametrize(
"theta,windspeed,v_res",
[
(45, 1, -SQRT2_OVER_2),
(315, 1, -SQRT2_OVER_2),
(225, 1, SQRT2_OVER_2),
(135, 1, SQRT2_OVER_2),
],
)
def test_get_v(theta, windspeed, v_res):
v_test = WeatherCond.get_v(theta, windspeed)

assert v_test == pytest.approx(v_test)
assert v_test == pytest.approx(v_res)