24 lines
784 B
Python
24 lines
784 B
Python
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import unittest
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from test import test_support
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class ListCompTestCase(unittest.TestCase):
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#http://bugs.jython.org/issue1205
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def test_long_listcomp(self):
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#for a long list comp, we compute the Hardy-Ramanujan number
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#http://en.wikipedia.org/wiki/1729_(number)
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res = [(x1**3+x2**3,(x1,x2),(y1,y2))
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for x1 in range(20) for x2 in range(20) if x1 < x2 # x-Paare
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for y1 in range(20) for y2 in range(20) if y1 < y2 # y-Paare
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if x1**3+x2**3 == y1**3+y2**3 # gleiche Summe
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if (x1,x2) < (y1,y2)
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]
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self.assertEquals(1729, min(res)[0])
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self.assertEquals(len(res), 2)
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def test_main():
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test_support.run_unittest(ListCompTestCase)
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if __name__ == '__main__':
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test_main()
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