88f7bb3f28
Each test class captures the logging output for warnings and check at tear down that there was not a warning. If any warning is expected you must explicitly capture within the test using `with self.capture_log() as buffer:`
45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import division, unicode_literals, print_function, absolute_import
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import itertools
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from pint import pi_theorem
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from pint.testsuite import QuantityTestCase
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class TestPiTheorem(QuantityTestCase):
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FORCE_NDARRAY = False
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def test_simple(self):
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# simple movement
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with self.capture_log() as buffer:
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self.assertEqual(pi_theorem({'V': 'm/s', 'T': 's', 'L': 'm'}),
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[{'V': 1, 'T': 1, 'L': -1}])
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# pendulum
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self.assertEqual(pi_theorem({'T': 's', 'M': 'grams', 'L': 'm', 'g': 'm/s**2'}),
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[{'g': 1, 'T': 2, 'L': -1}])
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self.assertEqual(len(buffer), 7)
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def test_inputs(self):
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V = 'km/hour'
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T = 'ms'
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L = 'cm'
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f1 = lambda x: x
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f2 = lambda x: self.Q_(1, x)
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f3 = lambda x: self.Q_(1, x).units
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f4 = lambda x: self.Q_(1, x).dimensionality
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fs = f1, f2, f3, f4
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for fv, ft, fl in itertools.product(fs, fs, fs):
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qv = fv(V)
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qt = ft(T)
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ql = ft(L)
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self.assertEqual(self.ureg.pi_theorem({'V': qv, 'T': qt, 'L': ql}),
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[{'V': 1.0, 'T': 1.0, 'L': -1.0}])
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