mirror of
https://github.com/wassname/catalyst.git
synced 2026-06-28 03:33:01 +08:00
Scott Sanderson
40 lines
1.1 KiB
Python
40 lines
1.1 KiB
Python
"""
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Tests for our testing utilities.
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"""
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from itertools import product
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from unittest import TestCase
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from zipline.utils.test_utils import parameter_space
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class TestParameterSpace(TestCase):
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x_args = [1, 2]
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y_args = [3, 4]
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@classmethod
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def setUpClass(cls):
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cls.xy_invocations = []
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cls.yx_invocations = []
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@classmethod
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def tearDownClass(cls):
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# This is the only actual test here.
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assert cls.xy_invocations == list(product(cls.x_args, cls.y_args))
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assert cls.yx_invocations == list(product(cls.y_args, cls.x_args))
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@parameter_space(x=x_args, y=y_args)
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def test_xy(self, x, y):
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self.xy_invocations.append((x, y))
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@parameter_space(x=x_args, y=y_args)
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def test_yx(self, y, x):
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# Ensure that product is called with args in the order that they appear
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# in the function's parameter list.
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self.yx_invocations.append((y, x))
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def test_nothing(self):
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# Ensure that there's at least one "real" test in the class, or else
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# our {setUp,tearDown}Class won't be called if, for example,
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# `parameter_space` returns None.
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pass
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