1 import os 2 import time 3 import unittest 4 5 6 class StructSeqTest(unittest.TestCase): 7 8 def test_tuple(self): 9 t = time.gmtime() 10 self.assertIsInstance(t, tuple) 11 astuple = tuple(t) 12 self.assertEqual(len(t), len(astuple)) 13 self.assertEqual(t, astuple) 14 15 # Check that slicing works the same way; at one point, slicing t[i:j] with 16 # 0 < i < j could produce NULLs in the result. 17 for i in range(-len(t), len(t)): 18 self.assertEqual(t[i:], astuple[i:]) 19 for j in range(-len(t), len(t)): 20 self.assertEqual(t[i:j], astuple[i:j]) 21 22 for j in range(-len(t), len(t)): 23 self.assertEqual(t[:j], astuple[:j]) 24 25 self.assertRaises(IndexError, t.__getitem__, -len(t)-1) 26 self.assertRaises(IndexError, t.__getitem__, len(t)) 27 for i in range(-len(t), len(t)-1): 28 self.assertEqual(t[i], astuple[i]) 29 30 def test_repr(self): 31 t = time.gmtime() 32 self.assertTrue(repr(t)) 33 t = time.gmtime(0) 34 self.assertEqual(repr(t), 35 "time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, " 36 "tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)") 37 # os.stat() gives a complicated struct sequence. 38 st = os.stat(__file__) 39 rep = repr(st) 40 self.assertTrue(rep.startswith("os.stat_result")) 41 self.assertIn("st_mode=", rep) 42 self.assertIn("st_ino=", rep) 43 self.assertIn("st_dev=", rep) 44 45 def test_concat(self): 46 t1 = time.gmtime() 47 t2 = t1 + tuple(t1) 48 for i in range(len(t1)): 49 self.assertEqual(t2[i], t2[i+len(t1)]) 50 51 def test_repeat(self): 52 t1 = time.gmtime() 53 t2 = 3 * t1 54 for i in range(len(t1)): 55 self.assertEqual(t2[i], t2[i+len(t1)]) 56 self.assertEqual(t2[i], t2[i+2*len(t1)]) 57 58 def test_contains(self): 59 t1 = time.gmtime() 60 for item in t1: 61 self.assertIn(item, t1) 62 self.assertNotIn(-42, t1) 63 64 def test_hash(self): 65 t1 = time.gmtime() 66 self.assertEqual(hash(t1), hash(tuple(t1))) 67 68 def test_cmp(self): 69 t1 = time.gmtime() 70 t2 = type(t1)(t1) 71 self.assertEqual(t1, t2) 72 self.assertTrue(not (t1 < t2)) 73 self.assertTrue(t1 <= t2) 74 self.assertTrue(not (t1 > t2)) 75 self.assertTrue(t1 >= t2) 76 self.assertTrue(not (t1 != t2)) 77 78 def test_fields(self): 79 t = time.gmtime() 80 self.assertEqual(len(t), t.n_sequence_fields) 81 self.assertEqual(t.n_unnamed_fields, 0) 82 self.assertEqual(t.n_fields, time._STRUCT_TM_ITEMS) 83 84 def test_constructor(self): 85 t = time.struct_time 86 87 self.assertRaises(TypeError, t) 88 self.assertRaises(TypeError, t, None) 89 self.assertRaises(TypeError, t, "123") 90 self.assertRaises(TypeError, t, "123", dict={}) 91 self.assertRaises(TypeError, t, "123456789", dict=None) 92 93 s = "123456789" 94 self.assertEqual("".join(t(s)), s) 95 96 def test_eviltuple(self): 97 class Exc(Exception): 98 pass 99 100 # Devious code could crash structseqs' constructors 101 class C: 102 def __getitem__(self, i): 103 raise Exc 104 def __len__(self): 105 return 9 106 107 self.assertRaises(Exc, time.struct_time, C()) 108 109 def test_reduce(self): 110 t = time.gmtime() 111 x = t.__reduce__() 112 113 def test_extended_getslice(self): 114 # Test extended slicing by comparing with list slicing. 115 t = time.gmtime() 116 L = list(t) 117 indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300) 118 for start in indices: 119 for stop in indices: 120 # Skip step 0 (invalid) 121 for step in indices[1:]: 122 self.assertEqual(list(t[start:stop:step]), 123 L[start:stop:step]) 124 125 if __name__ == "__main__": 126 unittest.main() 127
