Lib/test/test_range.py - Issue 602: range: lean and mean

Delta Between Two Patch Sets: Lib/test/test_range.py

Issue 602: range: lean and mean (Closed) SVN Base: http://svn.python.org/view/*checkout*/python/branches/py3k/

Left Patch Set: use PyMemberDef Created 4 months, 1 week ago , Downloaded from: http://bugs.python.org/file10155/range_lean_and_mean2.patch

Right Patch Set: in response to reviews Created 4 months, 1 week ago

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1 # Python test set -- built-in functions	1 # Python test set -- built-in functions

2	2

3 import test.test_support, unittest	3 import test.test_support, unittest

4 import sys	4 import sys

5	5

6 import warnings	6 import warnings

7 warnings.filterwarnings("ignore", "integer argument expected",	7 warnings.filterwarnings("ignore", "integer argument expected",

8 DeprecationWarning, "unittest")	8 DeprecationWarning, "unittest")

9	9

10 class RangeTest(unittest.TestCase):	10 class RangeTest(unittest.TestCase):

11 def test_range(self):	11 def test_range(self):

12 self.assertEqual(list(range(3)), [0, 1, 2])	12 self.assertEqual(list(range(3)), [0, 1, 2])

13 self.assertEqual(list(range(1, 5)), [1, 2, 3, 4])	13 self.assertEqual(list(range(1, 5)), [1, 2, 3, 4])

14 self.assertEqual(list(range(0)), [])	14 self.assertEqual(list(range(0)), [])

15 self.assertEqual(list(range(-3)), [])	15 self.assertEqual(list(range(-3)), [])

16 self.assertEqual(list(range(1, 10, 3)), [1, 4, 7])	16 self.assertEqual(list(range(1, 10, 3)), [1, 4, 7])

17 self.assertEqual(list(range(5, -5, -3)), [5, 2, -1, -4])	17 self.assertEqual(list(range(5, -5, -3)), [5, 2, -1, -4])

18	18

19 a = 10	19 a = 10

20 b = 100	20 b = 100

21 c = 50	21 c = 50

22	22

23 self.assertEqual(list(range(a, a+2)), [a, a+1])	23 self.assertEqual(list(range(a, a+2)), [a, a+1])

24 self.assertEqual(list(range(a+2, a, -1)), [a+2, a+1])	24 self.assertEqual(list(range(a+2, a, -1)), [a+2, a+1])

25 self.assertEqual(list(range(a+4, a, -2)), [a+4, a+2])	25 self.assertEqual(list(range(a+4, a, -2)), [a+4, a+2])

26	26

27 seq = list(range(a, b, c))	27 seq = list(range(a, b, c))

28 self.assert_(a in seq)	28 self.assert_(a in seq)

29 self.assert_(b not in seq)	29 self.assert_(b not in seq)

30 self.assertEqual(len(seq), 2)	30 self.assertEqual(len(seq), 2)

31	31

32 seq = list(range(b, a, -c))	32 seq = list(range(b, a, -c))

33 self.assert_(b in seq)	33 self.assert_(b in seq)

34 self.assert_(a not in seq)	34 self.assert_(a not in seq)

35 self.assertEqual(len(seq), 2)	35 self.assertEqual(len(seq), 2)

36	36

37 seq = list(range(-a, -b, -c))	37 seq = list(range(-a, -b, -c))

38 self.assert_(-a in seq)	38 self.assert_(-a in seq)

39 self.assert_(-b not in seq)	39 self.assert_(-b not in seq)

40 self.assertEqual(len(seq), 2)	40 self.assertEqual(len(seq), 2)

41	41

42 self.assertRaises(TypeError, range)	42 self.assertRaises(TypeError, range)

43 self.assertRaises(TypeError, range, 1, 2, 3, 4)	43 self.assertRaises(TypeError, range, 1, 2, 3, 4)

44 self.assertRaises(ValueError, range, 1, 2, 0)	44 self.assertRaises(ValueError, range, 1, 2, 0)

45	45

46 self.assertRaises(TypeError, range, 0.0, 2, 1)	46 self.assertRaises(TypeError, range, 0.0, 2, 1)

47 self.assertRaises(TypeError, range, 1, 2.0, 1)	47 self.assertRaises(TypeError, range, 1, 2.0, 1)

48 self.assertRaises(TypeError, range, 1, 2, 1.0)	48 self.assertRaises(TypeError, range, 1, 2, 1.0)

49 self.assertRaises(TypeError, range, 1e100, 1e101, 1e101)	49 self.assertRaises(TypeError, range, 1e100, 1e101, 1e101)

50	50

51 self.assertRaises(TypeError, range, 0, "spam")	51 self.assertRaises(TypeError, range, 0, "spam")

52 self.assertRaises(TypeError, range, 0, 42, "spam")	52 self.assertRaises(TypeError, range, 0, 42, "spam")

53	53

54 self.assertEqual(len(range(0, sys.maxsize, sys.maxsize-1)), 2)

55

56 r = range(-sys.maxsize, sys.maxsize, 2)

57 self.assertEqual(len(r), sys.maxsize)

58

59 def test_repr(self):	54 def test_repr(self):

60 self.assertEqual(repr(range(1)), 'range(0, 1)')	55 self.assertEqual(repr(range(1)), 'range(0, 1)')

61 self.assertEqual(repr(range(1, 2)), 'range(1, 2)')	56 self.assertEqual(repr(range(1, 2)), 'range(1, 2)')

62 self.assertEqual(repr(range(1, 2, 3)), 'range(1, 2, 3)')	57 self.assertEqual(repr(range(1, 2, 3)), 'range(1, 2, 3)')

63	58

64 def test_attributes(self):	59 def test_attributes(self):

65 r = range(0, 10, 2)	60 r = range(0, 10, 2)

66 self.assertEqual(r.start, 0)	61 self.assertEqual(r.start, 0)

67 self.assertEqual(r.stop, 10)	62 self.assertEqual(r.stop, 10)

68 self.assertEqual(r.step, 2)	63 self.assertEqual(r.step, 2)

69 r = range(10)	64 r = range(10)

70 self.assertEqual(r.start, 0)	65 self.assertEqual(r.start, 0)

71 self.assertEqual(r.stop, 10)	66 self.assertEqual(r.stop, 10)

72 self.assertEqual(r.step, 1)	67 self.assertEqual(r.step, 1)

	68 r = range(10, 0, 4)

	69 self.assertEqual(r.start, 10)

	70 self.assertEqual(r.stop, 0)

	71 self.assertEqual(r.step, 4)
	GvR 2008/05/03 05:04:35 Well how about r = range(1, 10, 2) # start=1, sto Well how about r = range(1, 10, 2) # start=1, stop=10, step=2 ? (Carried over from previous review.)
73	72

74 def test_main():	73 def test_main():

75 test.test_support.run_unittest(RangeTest)	74 test.test_support.run_unittest(RangeTest)

76	75

77 if __name__ == "__main__":	76 if __name__ == "__main__":

78 test_main()	77 test_main()

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