Python code coverage for Lib/test/test_json/test_scanstring.py

#	count	content
1	n/a	import sys
2	n/a	from test.test_json import PyTest, CTest
3	n/a
4	n/a
5	n/a	class TestScanstring:
6	n/a	def test_scanstring(self):
7	n/a	scanstring = self.json.decoder.scanstring
8	n/a	self.assertEqual(
9	n/a	scanstring('"z\U0001d120x"', 1, True),
10	n/a	('z\U0001d120x', 5))
11	n/a
12	n/a	self.assertEqual(
13	n/a	scanstring('"\\u007b"', 1, True),
14	n/a	('{', 8))
15	n/a
16	n/a	self.assertEqual(
17	n/a	scanstring('"A JSON payload should be an object or array, not a string."', 1, True),
18	n/a	('A JSON payload should be an object or array, not a string.', 60))
19	n/a
20	n/a	self.assertEqual(
21	n/a	scanstring('["Unclosed array"', 2, True),
22	n/a	('Unclosed array', 17))
23	n/a
24	n/a	self.assertEqual(
25	n/a	scanstring('["extra comma",]', 2, True),
26	n/a	('extra comma', 14))
27	n/a
28	n/a	self.assertEqual(
29	n/a	scanstring('["double extra comma",,]', 2, True),
30	n/a	('double extra comma', 21))
31	n/a
32	n/a	self.assertEqual(
33	n/a	scanstring('["Comma after the close"],', 2, True),
34	n/a	('Comma after the close', 24))
35	n/a
36	n/a	self.assertEqual(
37	n/a	scanstring('["Extra close"]]', 2, True),
38	n/a	('Extra close', 14))
39	n/a
40	n/a	self.assertEqual(
41	n/a	scanstring('{"Extra comma": true,}', 2, True),
42	n/a	('Extra comma', 14))
43	n/a
44	n/a	self.assertEqual(
45	n/a	scanstring('{"Extra value after close": true} "misplaced quoted value"', 2, True),
46	n/a	('Extra value after close', 26))
47	n/a
48	n/a	self.assertEqual(
49	n/a	scanstring('{"Illegal expression": 1 + 2}', 2, True),
50	n/a	('Illegal expression', 21))
51	n/a
52	n/a	self.assertEqual(
53	n/a	scanstring('{"Illegal invocation": alert()}', 2, True),
54	n/a	('Illegal invocation', 21))
55	n/a
56	n/a	self.assertEqual(
57	n/a	scanstring('{"Numbers cannot have leading zeroes": 013}', 2, True),
58	n/a	('Numbers cannot have leading zeroes', 37))
59	n/a
60	n/a	self.assertEqual(
61	n/a	scanstring('{"Numbers cannot be hex": 0x14}', 2, True),
62	n/a	('Numbers cannot be hex', 24))
63	n/a
64	n/a	self.assertEqual(
65	n/a	scanstring('[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]', 21, True),
66	n/a	('Too deep', 30))
67	n/a
68	n/a	self.assertEqual(
69	n/a	scanstring('{"Missing colon" null}', 2, True),
70	n/a	('Missing colon', 16))
71	n/a
72	n/a	self.assertEqual(
73	n/a	scanstring('{"Double colon":: null}', 2, True),
74	n/a	('Double colon', 15))
75	n/a
76	n/a	self.assertEqual(
77	n/a	scanstring('{"Comma instead of colon", null}', 2, True),
78	n/a	('Comma instead of colon', 25))
79	n/a
80	n/a	self.assertEqual(
81	n/a	scanstring('["Colon instead of comma": false]', 2, True),
82	n/a	('Colon instead of comma', 25))
83	n/a
84	n/a	self.assertEqual(
85	n/a	scanstring('["Bad value", truth]', 2, True),
86	n/a	('Bad value', 12))
87	n/a
88	n/a	def test_surrogates(self):
89	n/a	scanstring = self.json.decoder.scanstring
90	n/a	def assertScan(given, expect):
91	n/a	self.assertEqual(scanstring(given, 1, True),
92	n/a	(expect, len(given)))
93	n/a
94	n/a	assertScan('"z\\ud834\\u0079x"', 'z\ud834yx')
95	n/a	assertScan('"z\\ud834\\udd20x"', 'z\U0001d120x')
96	n/a	assertScan('"z\\ud834\\ud834\\udd20x"', 'z\ud834\U0001d120x')
97	n/a	assertScan('"z\\ud834x"', 'z\ud834x')
98	n/a	assertScan('"z\\ud834\udd20x12345"', 'z\ud834\udd20x12345')
99	n/a	assertScan('"z\\udd20x"', 'z\udd20x')
100	n/a	assertScan('"z\ud834\udd20x"', 'z\ud834\udd20x')
101	n/a	assertScan('"z\ud834\\udd20x"', 'z\ud834\udd20x')
102	n/a	assertScan('"z\ud834x"', 'z\ud834x')
103	n/a
104	n/a	def test_bad_escapes(self):
105	n/a	scanstring = self.json.decoder.scanstring
106	n/a	bad_escapes = [
107	n/a	'"\\"',
108	n/a	'"\\x"',
109	n/a	'"\\u"',
110	n/a	'"\\u0"',
111	n/a	'"\\u01"',
112	n/a	'"\\u012"',
113	n/a	'"\\uz012"',
114	n/a	'"\\u0z12"',
115	n/a	'"\\u01z2"',
116	n/a	'"\\u012z"',
117	n/a	'"\\u0x12"',
118	n/a	'"\\u0X12"',
119	n/a	'"\\ud834\\"',
120	n/a	'"\\ud834\\u"',
121	n/a	'"\\ud834\\ud"',
122	n/a	'"\\ud834\\udd"',
123	n/a	'"\\ud834\\udd2"',
124	n/a	'"\\ud834\\uzdd2"',
125	n/a	'"\\ud834\\udzd2"',
126	n/a	'"\\ud834\\uddz2"',
127	n/a	'"\\ud834\\udd2z"',
128	n/a	'"\\ud834\\u0x20"',
129	n/a	'"\\ud834\\u0X20"',
130	n/a	]
131	n/a	for s in bad_escapes:
132	n/a	with self.assertRaises(self.JSONDecodeError, msg=s):
133	n/a	scanstring(s, 1, True)
134	n/a
135	n/a	def test_overflow(self):
136	n/a	with self.assertRaises(OverflowError):
137	n/a	self.json.decoder.scanstring(b"xxx", sys.maxsize+1)
138	n/a
139	n/a
140	n/a	class TestPyScanstring(TestScanstring, PyTest): pass
141	n/a	class TestCScanstring(TestScanstring, CTest): pass