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126 lines
3.9 KiB
Python
126 lines
3.9 KiB
Python
import os
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import time
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import unittest
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class StructSeqTest(unittest.TestCase):
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def test_tuple(self):
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t = time.gmtime()
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self.assertIsInstance(t, tuple)
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astuple = tuple(t)
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self.assertEqual(len(t), len(astuple))
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self.assertEqual(t, astuple)
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# Check that slicing works the same way; at one point, slicing t[i:j] with
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# 0 < i < j could produce NULLs in the result.
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for i in range(-len(t), len(t)):
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self.assertEqual(t[i:], astuple[i:])
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for j in range(-len(t), len(t)):
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self.assertEqual(t[i:j], astuple[i:j])
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for j in range(-len(t), len(t)):
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self.assertEqual(t[:j], astuple[:j])
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self.assertRaises(IndexError, t.__getitem__, -len(t)-1)
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self.assertRaises(IndexError, t.__getitem__, len(t))
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for i in range(-len(t), len(t)-1):
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self.assertEqual(t[i], astuple[i])
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def test_repr(self):
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t = time.gmtime()
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self.assertTrue(repr(t))
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t = time.gmtime(0)
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self.assertEqual(repr(t),
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"time.struct_time(tm_year=1970, tm_mon=1, tm_mday=1, tm_hour=0, "
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"tm_min=0, tm_sec=0, tm_wday=3, tm_yday=1, tm_isdst=0)")
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# os.stat() gives a complicated struct sequence.
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st = os.stat(__file__)
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rep = repr(st)
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self.assertTrue(rep.startswith("os.stat_result"))
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self.assertIn("st_mode=", rep)
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self.assertIn("st_ino=", rep)
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self.assertIn("st_dev=", rep)
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def test_concat(self):
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t1 = time.gmtime()
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t2 = t1 + tuple(t1)
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for i in range(len(t1)):
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self.assertEqual(t2[i], t2[i+len(t1)])
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def test_repeat(self):
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t1 = time.gmtime()
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t2 = 3 * t1
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for i in range(len(t1)):
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self.assertEqual(t2[i], t2[i+len(t1)])
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self.assertEqual(t2[i], t2[i+2*len(t1)])
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def test_contains(self):
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t1 = time.gmtime()
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for item in t1:
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self.assertIn(item, t1)
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self.assertNotIn(-42, t1)
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def test_hash(self):
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t1 = time.gmtime()
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self.assertEqual(hash(t1), hash(tuple(t1)))
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def test_cmp(self):
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t1 = time.gmtime()
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t2 = type(t1)(t1)
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self.assertEqual(t1, t2)
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self.assertTrue(not (t1 < t2))
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self.assertTrue(t1 <= t2)
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self.assertTrue(not (t1 > t2))
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self.assertTrue(t1 >= t2)
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self.assertTrue(not (t1 != t2))
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def test_fields(self):
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t = time.gmtime()
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self.assertEqual(len(t), t.n_sequence_fields)
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self.assertEqual(t.n_unnamed_fields, 0)
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self.assertEqual(t.n_fields, time._STRUCT_TM_ITEMS)
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def test_constructor(self):
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t = time.struct_time
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self.assertRaises(TypeError, t)
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self.assertRaises(TypeError, t, None)
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self.assertRaises(TypeError, t, "123")
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self.assertRaises(TypeError, t, "123", dict={})
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self.assertRaises(TypeError, t, "123456789", dict=None)
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s = "123456789"
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self.assertEqual("".join(t(s)), s)
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def test_eviltuple(self):
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class Exc(Exception):
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pass
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# Devious code could crash structseqs' constructors
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class C:
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def __getitem__(self, i):
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raise Exc
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def __len__(self):
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return 9
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self.assertRaises(Exc, time.struct_time, C())
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def test_reduce(self):
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t = time.gmtime()
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x = t.__reduce__()
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def test_extended_getslice(self):
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# Test extended slicing by comparing with list slicing.
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t = time.gmtime()
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L = list(t)
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indices = (0, None, 1, 3, 19, 300, -1, -2, -31, -300)
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for start in indices:
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for stop in indices:
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# Skip step 0 (invalid)
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for step in indices[1:]:
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self.assertEqual(list(t[start:stop:step]),
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L[start:stop:step])
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if __name__ == "__main__":
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unittest.main()
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