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Python Source  |  2011-03-15  |  3.6 KB  |  121 lines
  1. import unittest
  2. from test import test_support
  3.  
  4. import time
  5.  
  6. class StructSeqTest(unittest.TestCase):
  7.  
  8.     def test_tuple(self):
  9.         t = time.gmtime()
  10.         astuple = tuple(t)
  11.         self.assertEqual(len(t), len(astuple))
  12.         self.assertEqual(t, astuple)
  13.  
  14.         # Check that slicing works the same way; at one point, slicing t[i:j] with
  15.         # 0 < i < j could produce NULLs in the result.
  16.         for i in xrange(-len(t), len(t)):
  17.             self.assertEqual(t[i:], astuple[i:])
  18.             for j in xrange(-len(t), len(t)):
  19.                 self.assertEqual(t[i:j], astuple[i:j])
  20.  
  21.         for j in xrange(-len(t), len(t)):
  22.             self.assertEqual(t[:j], astuple[:j])
  23.  
  24.         self.assertRaises(IndexError, t.__getitem__, -len(t)-1)
  25.         self.assertRaises(IndexError, t.__getitem__, len(t))
  26.         for i in xrange(-len(t), len(t)-1):
  27.             self.assertEqual(t[i], astuple[i])
  28.  
  29.     def test_repr(self):
  30.         t = time.gmtime()
  31.         self.assert_(repr(t))
  32.         t = time.gmtime(0)
  33.         self.assertEqual(repr(t),
  34.             "time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, "
  35.             "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)")
  36.  
  37.     def test_concat(self):
  38.         t1 = time.gmtime()
  39.         t2 = t1 + tuple(t1)
  40.         for i in xrange(len(t1)):
  41.             self.assertEqual(t2[i], t2[i+len(t1)])
  42.  
  43.     def test_repeat(self):
  44.         t1 = time.gmtime()
  45.         t2 = 3 * t1
  46.         for i in xrange(len(t1)):
  47.             self.assertEqual(t2[i], t2[i+len(t1)])
  48.             self.assertEqual(t2[i], t2[i+2*len(t1)])
  49.  
  50.     def test_contains(self):
  51.         t1 = time.gmtime()
  52.         for item in t1:
  53.             self.assert_(item in t1)
  54.         self.assert_(-42 not in t1)
  55.  
  56.     def test_hash(self):
  57.         t1 = time.gmtime()
  58.         self.assertEqual(hash(t1), hash(tuple(t1)))
  59.  
  60.     def test_cmp(self):
  61.         t1 = time.gmtime()
  62.         t2 = type(t1)(t1)
  63.         self.assertEqual(t1, t2)
  64.         self.assert_(not (t1 < t2))
  65.         self.assert_(t1 <= t2)
  66.         self.assert_(not (t1 > t2))
  67.         self.assert_(t1 >= t2)
  68.         self.assert_(not (t1 != t2))
  69.  
  70.     def test_fields(self):
  71.         t = time.gmtime()
  72.         self.assertEqual(len(t), t.n_fields)
  73.         self.assertEqual(t.n_fields, t.n_sequence_fields+t.n_unnamed_fields)
  74.  
  75.     def test_constructor(self):
  76.         t = time.struct_time
  77.  
  78.         self.assertRaises(TypeError, t)
  79.         self.assertRaises(TypeError, t, None)
  80.         self.assertRaises(TypeError, t, "123")
  81.         self.assertRaises(TypeError, t, "123", dict={})
  82.         self.assertRaises(TypeError, t, "123456789", dict=None)
  83.  
  84.         s = "123456789"
  85.         self.assertEqual("".join(t(s)), s)
  86.  
  87.     def test_eviltuple(self):
  88.         class Exc(Exception):
  89.             pass
  90.  
  91.         # Devious code could crash structseqs' contructors
  92.         class C:
  93.             def __getitem__(self, i):
  94.                 raise Exc
  95.             def __len__(self):
  96.                 return 9
  97.  
  98.         self.assertRaises(Exc, time.struct_time, C())
  99.  
  100.     def test_reduce(self):
  101.         t = time.gmtime()
  102.         x = t.__reduce__()
  103.  
  104.     def test_extended_getslice(self):
  105.         # Test extended slicing by comparing with list slicing.
  106.         t = time.gmtime()
  107.         L = list(t)
  108.         indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
  109.         for start in indices:
  110.             for stop in indices:
  111.                 # Skip step 0 (invalid)
  112.                 for step in indices[1:]:
  113.                     self.assertEqual(list(t[start:stop:step]),
  114.                                      L[start:stop:step])
  115.  
  116. def test_main():
  117.     test_support.run_unittest(StructSeqTest)
  118.  
  119. if __name__ == "__main__":
  120.     test_main()
  121.