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