| import sys |
| from json.tests import PyTest, CTest |
| |
| |
| class TestScanstring(object): |
| def test_scanstring(self): |
| scanstring = self.json.decoder.scanstring |
| if sys.maxunicode == 65535: |
| self.assertEqual( |
| scanstring(u'"z\U0001d120x"', 1, None, True), |
| (u'z\U0001d120x', 6)) |
| else: |
| self.assertEqual( |
| scanstring(u'"z\U0001d120x"', 1, None, True), |
| (u'z\U0001d120x', 5)) |
| |
| self.assertEqual( |
| scanstring('"\\u007b"', 1, None, True), |
| (u'{', 8)) |
| |
| self.assertEqual( |
| scanstring('"A JSON payload should be an object or array, not a string."', 1, None, True), |
| (u'A JSON payload should be an object or array, not a string.', 60)) |
| |
| self.assertEqual( |
| scanstring('["Unclosed array"', 2, None, True), |
| (u'Unclosed array', 17)) |
| |
| self.assertEqual( |
| scanstring('["extra comma",]', 2, None, True), |
| (u'extra comma', 14)) |
| |
| self.assertEqual( |
| scanstring('["double extra comma",,]', 2, None, True), |
| (u'double extra comma', 21)) |
| |
| self.assertEqual( |
| scanstring('["Comma after the close"],', 2, None, True), |
| (u'Comma after the close', 24)) |
| |
| self.assertEqual( |
| scanstring('["Extra close"]]', 2, None, True), |
| (u'Extra close', 14)) |
| |
| self.assertEqual( |
| scanstring('{"Extra comma": true,}', 2, None, True), |
| (u'Extra comma', 14)) |
| |
| self.assertEqual( |
| scanstring('{"Extra value after close": true} "misplaced quoted value"', 2, None, True), |
| (u'Extra value after close', 26)) |
| |
| self.assertEqual( |
| scanstring('{"Illegal expression": 1 + 2}', 2, None, True), |
| (u'Illegal expression', 21)) |
| |
| self.assertEqual( |
| scanstring('{"Illegal invocation": alert()}', 2, None, True), |
| (u'Illegal invocation', 21)) |
| |
| self.assertEqual( |
| scanstring('{"Numbers cannot have leading zeroes": 013}', 2, None, True), |
| (u'Numbers cannot have leading zeroes', 37)) |
| |
| self.assertEqual( |
| scanstring('{"Numbers cannot be hex": 0x14}', 2, None, True), |
| (u'Numbers cannot be hex', 24)) |
| |
| self.assertEqual( |
| scanstring('[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]', 21, None, True), |
| (u'Too deep', 30)) |
| |
| self.assertEqual( |
| scanstring('{"Missing colon" null}', 2, None, True), |
| (u'Missing colon', 16)) |
| |
| self.assertEqual( |
| scanstring('{"Double colon":: null}', 2, None, True), |
| (u'Double colon', 15)) |
| |
| self.assertEqual( |
| scanstring('{"Comma instead of colon", null}', 2, None, True), |
| (u'Comma instead of colon', 25)) |
| |
| self.assertEqual( |
| scanstring('["Colon instead of comma": false]', 2, None, True), |
| (u'Colon instead of comma', 25)) |
| |
| self.assertEqual( |
| scanstring('["Bad value", truth]', 2, None, True), |
| (u'Bad value', 12)) |
| |
| def test_surrogates(self): |
| scanstring = self.json.decoder.scanstring |
| def assertScan(given, expect): |
| self.assertEqual(scanstring(given, 1, None, True), |
| (expect, len(given))) |
| if not isinstance(given, unicode): |
| given = unicode(given) |
| self.assertEqual(scanstring(given, 1, None, True), |
| (expect, len(given))) |
| |
| surrogates = unichr(0xd834) + unichr(0xdd20) |
| assertScan('"z\\ud834\\u0079x"', u'z\ud834yx') |
| assertScan('"z\\ud834\\udd20x"', u'z\U0001d120x') |
| assertScan('"z\\ud834\\ud834\\udd20x"', u'z\ud834\U0001d120x') |
| assertScan('"z\\ud834x"', u'z\ud834x') |
| assertScan(u'"z\\ud834\udd20x12345"', u'z%sx12345' % surrogates) |
| assertScan('"z\\udd20x"', u'z\udd20x') |
| assertScan(u'"z\ud834\udd20x"', u'z\ud834\udd20x') |
| assertScan(u'"z\ud834\\udd20x"', u'z%sx' % surrogates) |
| assertScan(u'"z\ud834x"', u'z\ud834x') |
| |
| def test_bad_escapes(self): |
| scanstring = self.json.decoder.scanstring |
| bad_escapes = [ |
| '"\\"', |
| '"\\x"', |
| '"\\u"', |
| '"\\u0"', |
| '"\\u01"', |
| '"\\u012"', |
| '"\\uz012"', |
| '"\\u0z12"', |
| '"\\u01z2"', |
| '"\\u012z"', |
| '"\\u0x12"', |
| '"\\u0X12"', |
| '"\\ud834\\"', |
| '"\\ud834\\u"', |
| '"\\ud834\\ud"', |
| '"\\ud834\\udd"', |
| '"\\ud834\\udd2"', |
| '"\\ud834\\uzdd2"', |
| '"\\ud834\\udzd2"', |
| '"\\ud834\\uddz2"', |
| '"\\ud834\\udd2z"', |
| '"\\ud834\\u0x20"', |
| '"\\ud834\\u0X20"', |
| ] |
| for s in bad_escapes: |
| with self.assertRaises(ValueError): |
| scanstring(s, 1, None, True) |
| |
| def test_issue3623(self): |
| self.assertRaises(ValueError, self.json.decoder.scanstring, b"xxx", 1, |
| "xxx") |
| self.assertRaises(UnicodeDecodeError, |
| self.json.encoder.encode_basestring_ascii, b"xx\xff") |
| |
| def test_overflow(self): |
| with self.assertRaises(OverflowError): |
| self.json.decoder.scanstring(b"xxx", sys.maxsize+1) |
| |
| |
| class TestPyScanstring(TestScanstring, PyTest): pass |
| class TestCScanstring(TestScanstring, CTest): pass |