Python code coverage for Lib/test/test_dictcomps.py

#	count	content
1	n/a	import unittest
2	n/a
3	n/a	# For scope testing.
4	n/a	g = "Global variable"
5	n/a
6	n/a
7	n/a	class DictComprehensionTest(unittest.TestCase):
8	n/a
9	n/a	def test_basics(self):
10	n/a	expected = {0: 10, 1: 11, 2: 12, 3: 13, 4: 14, 5: 15, 6: 16, 7: 17,
11	n/a	8: 18, 9: 19}
12	n/a	actual = {k: k + 10 for k in range(10)}
13	n/a	self.assertEqual(actual, expected)
14	n/a
15	n/a	expected = {0: 0, 1: 1, 2: 2, 3: 3, 4: 4, 5: 5, 6: 6, 7: 7, 8: 8, 9: 9}
16	n/a	actual = {k: v for k in range(10) for v in range(10) if k == v}
17	n/a	self.assertEqual(actual, expected)
18	n/a
19	n/a	def test_scope_isolation(self):
20	n/a	k = "Local Variable"
21	n/a
22	n/a	expected = {0: None, 1: None, 2: None, 3: None, 4: None, 5: None,
23	n/a	6: None, 7: None, 8: None, 9: None}
24	n/a	actual = {k: None for k in range(10)}
25	n/a	self.assertEqual(actual, expected)
26	n/a	self.assertEqual(k, "Local Variable")
27	n/a
28	n/a	expected = {9: 1, 18: 2, 19: 2, 27: 3, 28: 3, 29: 3, 36: 4, 37: 4,
29	n/a	38: 4, 39: 4, 45: 5, 46: 5, 47: 5, 48: 5, 49: 5, 54: 6,
30	n/a	55: 6, 56: 6, 57: 6, 58: 6, 59: 6, 63: 7, 64: 7, 65: 7,
31	n/a	66: 7, 67: 7, 68: 7, 69: 7, 72: 8, 73: 8, 74: 8, 75: 8,
32	n/a	76: 8, 77: 8, 78: 8, 79: 8, 81: 9, 82: 9, 83: 9, 84: 9,
33	n/a	85: 9, 86: 9, 87: 9, 88: 9, 89: 9}
34	n/a	actual = {k: v for v in range(10) for k in range(v * 9, v * 10)}
35	n/a	self.assertEqual(k, "Local Variable")
36	n/a	self.assertEqual(actual, expected)
37	n/a
38	n/a	def test_scope_isolation_from_global(self):
39	n/a	expected = {0: None, 1: None, 2: None, 3: None, 4: None, 5: None,
40	n/a	6: None, 7: None, 8: None, 9: None}
41	n/a	actual = {g: None for g in range(10)}
42	n/a	self.assertEqual(actual, expected)
43	n/a	self.assertEqual(g, "Global variable")
44	n/a
45	n/a	expected = {9: 1, 18: 2, 19: 2, 27: 3, 28: 3, 29: 3, 36: 4, 37: 4,
46	n/a	38: 4, 39: 4, 45: 5, 46: 5, 47: 5, 48: 5, 49: 5, 54: 6,
47	n/a	55: 6, 56: 6, 57: 6, 58: 6, 59: 6, 63: 7, 64: 7, 65: 7,
48	n/a	66: 7, 67: 7, 68: 7, 69: 7, 72: 8, 73: 8, 74: 8, 75: 8,
49	n/a	76: 8, 77: 8, 78: 8, 79: 8, 81: 9, 82: 9, 83: 9, 84: 9,
50	n/a	85: 9, 86: 9, 87: 9, 88: 9, 89: 9}
51	n/a	actual = {g: v for v in range(10) for g in range(v * 9, v * 10)}
52	n/a	self.assertEqual(g, "Global variable")
53	n/a	self.assertEqual(actual, expected)
54	n/a
55	n/a	def test_global_visibility(self):
56	n/a	expected = {0: 'Global variable', 1: 'Global variable',
57	n/a	2: 'Global variable', 3: 'Global variable',
58	n/a	4: 'Global variable', 5: 'Global variable',
59	n/a	6: 'Global variable', 7: 'Global variable',
60	n/a	8: 'Global variable', 9: 'Global variable'}
61	n/a	actual = {k: g for k in range(10)}
62	n/a	self.assertEqual(actual, expected)
63	n/a
64	n/a	def test_local_visibility(self):
65	n/a	v = "Local variable"
66	n/a	expected = {0: 'Local variable', 1: 'Local variable',
67	n/a	2: 'Local variable', 3: 'Local variable',
68	n/a	4: 'Local variable', 5: 'Local variable',
69	n/a	6: 'Local variable', 7: 'Local variable',
70	n/a	8: 'Local variable', 9: 'Local variable'}
71	n/a	actual = {k: v for k in range(10)}
72	n/a	self.assertEqual(actual, expected)
73	n/a	self.assertEqual(v, "Local variable")
74	n/a
75	n/a	def test_illegal_assignment(self):
76	n/a	with self.assertRaisesRegex(SyntaxError, "can't assign"):
77	n/a	compile("{x: y for y, x in ((1, 2), (3, 4))} = 5", "<test>",
78	n/a	"exec")
79	n/a
80	n/a	with self.assertRaisesRegex(SyntaxError, "can't assign"):
81	n/a	compile("{x: y for y, x in ((1, 2), (3, 4))} += 5", "<test>",
82	n/a	"exec")
83	n/a
84	n/a
85	n/a	if __name__ == "__main__":
86	n/a	unittest.main()