142 lines
4.5 KiB
Python
142 lines
4.5 KiB
Python
import sys
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from test.test_json import PyTest, CTest
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class TestScanstring:
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def test_scanstring(self):
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scanstring = self.json.decoder.scanstring
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self.assertEqual(
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scanstring('"z\U0001d120x"', 1, True),
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('z\U0001d120x', 5))
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self.assertEqual(
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scanstring('"\\u007b"', 1, True),
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('{', 8))
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self.assertEqual(
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scanstring('"A JSON payload should be an object or array, not a string."', 1, True),
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('A JSON payload should be an object or array, not a string.', 60))
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self.assertEqual(
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scanstring('["Unclosed array"', 2, True),
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('Unclosed array', 17))
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self.assertEqual(
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scanstring('["extra comma",]', 2, True),
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('extra comma', 14))
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self.assertEqual(
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scanstring('["double extra comma",,]', 2, True),
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('double extra comma', 21))
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self.assertEqual(
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scanstring('["Comma after the close"],', 2, True),
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('Comma after the close', 24))
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self.assertEqual(
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scanstring('["Extra close"]]', 2, True),
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('Extra close', 14))
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self.assertEqual(
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scanstring('{"Extra comma": true,}', 2, True),
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('Extra comma', 14))
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self.assertEqual(
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scanstring('{"Extra value after close": true} "misplaced quoted value"', 2, True),
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('Extra value after close', 26))
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self.assertEqual(
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scanstring('{"Illegal expression": 1 + 2}', 2, True),
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('Illegal expression', 21))
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self.assertEqual(
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scanstring('{"Illegal invocation": alert()}', 2, True),
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('Illegal invocation', 21))
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self.assertEqual(
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scanstring('{"Numbers cannot have leading zeroes": 013}', 2, True),
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('Numbers cannot have leading zeroes', 37))
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self.assertEqual(
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scanstring('{"Numbers cannot be hex": 0x14}', 2, True),
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('Numbers cannot be hex', 24))
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self.assertEqual(
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scanstring('[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]', 21, True),
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('Too deep', 30))
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self.assertEqual(
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scanstring('{"Missing colon" null}', 2, True),
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('Missing colon', 16))
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self.assertEqual(
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scanstring('{"Double colon":: null}', 2, True),
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('Double colon', 15))
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self.assertEqual(
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scanstring('{"Comma instead of colon", null}', 2, True),
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('Comma instead of colon', 25))
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self.assertEqual(
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scanstring('["Colon instead of comma": false]', 2, True),
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('Colon instead of comma', 25))
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self.assertEqual(
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scanstring('["Bad value", truth]', 2, True),
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('Bad value', 12))
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def test_surrogates(self):
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scanstring = self.json.decoder.scanstring
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def assertScan(given, expect):
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self.assertEqual(scanstring(given, 1, True),
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(expect, len(given)))
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assertScan('"z\\ud834\\u0079x"', 'z\ud834yx')
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assertScan('"z\\ud834\\udd20x"', 'z\U0001d120x')
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assertScan('"z\\ud834\\ud834\\udd20x"', 'z\ud834\U0001d120x')
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assertScan('"z\\ud834x"', 'z\ud834x')
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assertScan('"z\\ud834\udd20x12345"', 'z\ud834\udd20x12345')
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assertScan('"z\\udd20x"', 'z\udd20x')
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assertScan('"z\ud834\udd20x"', 'z\ud834\udd20x')
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assertScan('"z\ud834\\udd20x"', 'z\ud834\udd20x')
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assertScan('"z\ud834x"', 'z\ud834x')
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def test_bad_escapes(self):
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scanstring = self.json.decoder.scanstring
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bad_escapes = [
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'"\\"',
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'"\\x"',
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'"\\u"',
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'"\\u0"',
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'"\\u01"',
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'"\\u012"',
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'"\\uz012"',
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'"\\u0z12"',
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'"\\u01z2"',
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'"\\u012z"',
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'"\\u0x12"',
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'"\\u0X12"',
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'"\\ud834\\"',
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'"\\ud834\\u"',
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'"\\ud834\\ud"',
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'"\\ud834\\udd"',
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'"\\ud834\\udd2"',
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'"\\ud834\\uzdd2"',
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'"\\ud834\\udzd2"',
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'"\\ud834\\uddz2"',
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'"\\ud834\\udd2z"',
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'"\\ud834\\u0x20"',
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'"\\ud834\\u0X20"',
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]
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for s in bad_escapes:
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with self.assertRaises(self.JSONDecodeError, msg=s):
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scanstring(s, 1, True)
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def test_overflow(self):
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with self.assertRaises(OverflowError):
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self.json.decoder.scanstring(b"xxx", sys.maxsize+1)
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class TestPyScanstring(TestScanstring, PyTest): pass
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class TestCScanstring(TestScanstring, CTest): pass
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