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import pytest |
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import scipy.constants as sc |
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from scipy.conftest import array_api_compatible |
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from scipy._lib._array_api_no_0d import xp_assert_equal, xp_assert_close |
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from numpy.testing import assert_allclose |
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pytestmark = [array_api_compatible, pytest.mark.usefixtures("skip_xp_backends")] |
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skip_xp_backends = pytest.mark.skip_xp_backends |
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class TestConvertTemperature: |
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def test_convert_temperature(self, xp): |
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xp_assert_equal(sc.convert_temperature(xp.asarray(32.), 'f', 'Celsius'), |
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xp.asarray(0.0)) |
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xp_assert_equal(sc.convert_temperature(xp.asarray([0., 0.]), |
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'celsius', 'Kelvin'), |
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xp.asarray([273.15, 273.15])) |
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xp_assert_equal(sc.convert_temperature(xp.asarray([0., 0.]), 'kelvin', 'c'), |
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xp.asarray([-273.15, -273.15])) |
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xp_assert_equal(sc.convert_temperature(xp.asarray([32., 32.]), 'f', 'k'), |
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xp.asarray([273.15, 273.15])) |
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xp_assert_equal(sc.convert_temperature(xp.asarray([273.15, 273.15]), |
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'kelvin', 'F'), |
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xp.asarray([32., 32.])) |
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xp_assert_equal(sc.convert_temperature(xp.asarray([0., 0.]), 'C', 'fahrenheit'), |
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xp.asarray([32., 32.])) |
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xp_assert_close(sc.convert_temperature(xp.asarray([0., 0.], dtype=xp.float64), |
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'c', 'r'), |
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xp.asarray([491.67, 491.67], dtype=xp.float64), |
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rtol=0., atol=1e-13) |
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xp_assert_close(sc.convert_temperature(xp.asarray([491.67, 491.67], |
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dtype=xp.float64), |
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'Rankine', 'C'), |
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xp.asarray([0., 0.], dtype=xp.float64), rtol=0., atol=1e-13) |
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xp_assert_close(sc.convert_temperature(xp.asarray([491.67, 491.67], |
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dtype=xp.float64), |
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'r', 'F'), |
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xp.asarray([32., 32.], dtype=xp.float64), rtol=0., atol=1e-13) |
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xp_assert_close(sc.convert_temperature(xp.asarray([32., 32.], dtype=xp.float64), |
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'fahrenheit', 'R'), |
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xp.asarray([491.67, 491.67], dtype=xp.float64), |
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rtol=0., atol=1e-13) |
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xp_assert_close(sc.convert_temperature(xp.asarray([273.15, 273.15], |
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dtype=xp.float64), |
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'K', 'R'), |
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xp.asarray([491.67, 491.67], dtype=xp.float64), |
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rtol=0., atol=1e-13) |
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xp_assert_close(sc.convert_temperature(xp.asarray([491.67, 0.], |
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dtype=xp.float64), |
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'rankine', 'kelvin'), |
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xp.asarray([273.15, 0.], dtype=xp.float64), rtol=0., atol=1e-13) |
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@skip_xp_backends(np_only=True, reason='Python list input uses NumPy backend') |
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def test_convert_temperature_array_like(self): |
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assert_allclose(sc.convert_temperature([491.67, 0.], 'rankine', 'kelvin'), |
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[273.15, 0.], rtol=0., atol=1e-13) |
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@skip_xp_backends(np_only=True, reason='Python int input uses NumPy backend') |
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def test_convert_temperature_errors(self, xp): |
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with pytest.raises(NotImplementedError, match="old_scale="): |
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sc.convert_temperature(1, old_scale="cheddar", new_scale="kelvin") |
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with pytest.raises(NotImplementedError, match="new_scale="): |
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sc.convert_temperature(1, old_scale="kelvin", new_scale="brie") |
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class TestLambdaToNu: |
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def test_lambda_to_nu(self, xp): |
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xp_assert_equal(sc.lambda2nu(xp.asarray([sc.speed_of_light, 1])), |
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xp.asarray([1, sc.speed_of_light])) |
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@skip_xp_backends(np_only=True, reason='Python list input uses NumPy backend') |
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def test_lambda_to_nu_array_like(self, xp): |
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assert_allclose(sc.lambda2nu([sc.speed_of_light, 1]), |
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[1, sc.speed_of_light]) |
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class TestNuToLambda: |
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def test_nu_to_lambda(self, xp): |
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xp_assert_equal(sc.nu2lambda(xp.asarray([sc.speed_of_light, 1])), |
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xp.asarray([1, sc.speed_of_light])) |
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@skip_xp_backends(np_only=True, reason='Python list input uses NumPy backend') |
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def test_nu_to_lambda_array_like(self, xp): |
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assert_allclose(sc.nu2lambda([sc.speed_of_light, 1]), |
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[1, sc.speed_of_light]) |
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