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241 lines
9.9 KiB
Python
241 lines
9.9 KiB
Python
from test.test_json import PyTest, CTest
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# 2007-10-05
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JSONDOCS = [
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# https://json.org/JSON_checker/test/fail1.json
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'"A JSON payload should be an object or array, not a string."',
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# https://json.org/JSON_checker/test/fail2.json
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'["Unclosed array"',
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# https://json.org/JSON_checker/test/fail3.json
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'{unquoted_key: "keys must be quoted"}',
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# https://json.org/JSON_checker/test/fail4.json
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'["extra comma",]',
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# https://json.org/JSON_checker/test/fail5.json
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'["double extra comma",,]',
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# https://json.org/JSON_checker/test/fail6.json
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'[ , "<-- missing value"]',
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# https://json.org/JSON_checker/test/fail7.json
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'["Comma after the close"],',
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# https://json.org/JSON_checker/test/fail8.json
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'["Extra close"]]',
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# https://json.org/JSON_checker/test/fail9.json
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'{"Extra comma": true,}',
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# https://json.org/JSON_checker/test/fail10.json
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'{"Extra value after close": true} "misplaced quoted value"',
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# https://json.org/JSON_checker/test/fail11.json
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'{"Illegal expression": 1 + 2}',
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# https://json.org/JSON_checker/test/fail12.json
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'{"Illegal invocation": alert()}',
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# https://json.org/JSON_checker/test/fail13.json
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'{"Numbers cannot have leading zeroes": 013}',
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# https://json.org/JSON_checker/test/fail14.json
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'{"Numbers cannot be hex": 0x14}',
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# https://json.org/JSON_checker/test/fail15.json
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'["Illegal backslash escape: \\x15"]',
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# https://json.org/JSON_checker/test/fail16.json
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'[\\naked]',
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# https://json.org/JSON_checker/test/fail17.json
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'["Illegal backslash escape: \\017"]',
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# https://json.org/JSON_checker/test/fail18.json
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'[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]',
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# https://json.org/JSON_checker/test/fail19.json
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'{"Missing colon" null}',
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# https://json.org/JSON_checker/test/fail20.json
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'{"Double colon":: null}',
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# https://json.org/JSON_checker/test/fail21.json
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'{"Comma instead of colon", null}',
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# https://json.org/JSON_checker/test/fail22.json
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'["Colon instead of comma": false]',
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# https://json.org/JSON_checker/test/fail23.json
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'["Bad value", truth]',
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# https://json.org/JSON_checker/test/fail24.json
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"['single quote']",
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# https://json.org/JSON_checker/test/fail25.json
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'["\ttab\tcharacter\tin\tstring\t"]',
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# https://json.org/JSON_checker/test/fail26.json
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'["tab\\ character\\ in\\ string\\ "]',
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# https://json.org/JSON_checker/test/fail27.json
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'["line\nbreak"]',
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# https://json.org/JSON_checker/test/fail28.json
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'["line\\\nbreak"]',
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# https://json.org/JSON_checker/test/fail29.json
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'[0e]',
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# https://json.org/JSON_checker/test/fail30.json
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'[0e+]',
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# https://json.org/JSON_checker/test/fail31.json
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'[0e+-1]',
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# https://json.org/JSON_checker/test/fail32.json
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'{"Comma instead if closing brace": true,',
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# https://json.org/JSON_checker/test/fail33.json
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'["mismatch"}',
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# https://code.google.com/archive/p/simplejson/issues/3
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'["A\u001FZ control characters in string"]',
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]
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SKIPS = {
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1: "why not have a string payload?",
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18: "spec doesn't specify any nesting limitations",
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}
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class TestFail:
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def test_failures(self):
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for idx, doc in enumerate(JSONDOCS):
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idx = idx + 1
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if idx in SKIPS:
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self.loads(doc)
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continue
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try:
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self.loads(doc)
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except self.JSONDecodeError:
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pass
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else:
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self.fail(f"Expected failure for fail{idx}.json: {doc!r}")
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def test_non_string_keys_dict(self):
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data = {'a' : 1, (1, 2) : 2}
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with self.assertRaisesRegex(TypeError,
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'keys must be str, int, float, bool or None, not tuple'):
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self.dumps(data)
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def test_not_serializable(self):
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import sys
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with self.assertRaisesRegex(TypeError,
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'Object of type module is not JSON serializable') as cm:
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self.dumps(sys)
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self.assertFalse(hasattr(cm.exception, '__notes__'))
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with self.assertRaises(TypeError) as cm:
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self.dumps([1, [2, 3, sys]])
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self.assertEqual(cm.exception.__notes__,
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['when serializing list item 2',
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'when serializing list item 1'])
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with self.assertRaises(TypeError) as cm:
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self.dumps((1, (2, 3, sys)))
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self.assertEqual(cm.exception.__notes__,
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['when serializing tuple item 2',
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'when serializing tuple item 1'])
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with self.assertRaises(TypeError) as cm:
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self.dumps({'a': {'b': sys}})
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self.assertEqual(cm.exception.__notes__,
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["when serializing dict item 'b'",
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"when serializing dict item 'a'"])
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def test_truncated_input(self):
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test_cases = [
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('', 'Expecting value', 0),
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('[', 'Expecting value', 1),
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('[42', "Expecting ',' delimiter", 3),
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('[42,', 'Expecting value', 4),
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('["', 'Unterminated string starting at', 1),
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('["spam', 'Unterminated string starting at', 1),
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('["spam"', "Expecting ',' delimiter", 7),
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('["spam",', 'Expecting value', 8),
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('{', 'Expecting property name enclosed in double quotes', 1),
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('{"', 'Unterminated string starting at', 1),
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('{"spam', 'Unterminated string starting at', 1),
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('{"spam"', "Expecting ':' delimiter", 7),
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('{"spam":', 'Expecting value', 8),
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('{"spam":42', "Expecting ',' delimiter", 10),
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('{"spam":42,', 'Expecting property name enclosed in double quotes', 11),
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]
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test_cases += [
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('"', 'Unterminated string starting at', 0),
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('"spam', 'Unterminated string starting at', 0),
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]
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for data, msg, idx in test_cases:
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with self.assertRaises(self.JSONDecodeError) as cm:
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self.loads(data)
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err = cm.exception
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self.assertEqual(err.msg, msg)
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self.assertEqual(err.pos, idx)
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self.assertEqual(err.lineno, 1)
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self.assertEqual(err.colno, idx + 1)
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self.assertEqual(str(err),
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'%s: line 1 column %d (char %d)' %
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(msg, idx + 1, idx))
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def test_unexpected_data(self):
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test_cases = [
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('[,', 'Expecting value', 1),
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('{"spam":[}', 'Expecting value', 9),
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('[42:', "Expecting ',' delimiter", 3),
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('[42 "spam"', "Expecting ',' delimiter", 4),
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('[42,]', "Illegal trailing comma before end of array", 3),
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('{"spam":[42}', "Expecting ',' delimiter", 11),
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('["]', 'Unterminated string starting at', 1),
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('["spam":', "Expecting ',' delimiter", 7),
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('["spam",]', "Illegal trailing comma before end of array", 7),
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('{:', 'Expecting property name enclosed in double quotes', 1),
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('{,', 'Expecting property name enclosed in double quotes', 1),
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('{42', 'Expecting property name enclosed in double quotes', 1),
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('[{]', 'Expecting property name enclosed in double quotes', 2),
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('{"spam",', "Expecting ':' delimiter", 7),
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('{"spam"}', "Expecting ':' delimiter", 7),
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('[{"spam"]', "Expecting ':' delimiter", 8),
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('{"spam":}', 'Expecting value', 8),
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('[{"spam":]', 'Expecting value', 9),
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('{"spam":42 "ham"', "Expecting ',' delimiter", 11),
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('[{"spam":42]', "Expecting ',' delimiter", 11),
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('{"spam":42,}', "Illegal trailing comma before end of object", 10),
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('{"spam":42 , }', "Illegal trailing comma before end of object", 11),
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('[123 , ]', "Illegal trailing comma before end of array", 6),
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]
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for data, msg, idx in test_cases:
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with self.assertRaises(self.JSONDecodeError) as cm:
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self.loads(data)
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err = cm.exception
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self.assertEqual(err.msg, msg)
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self.assertEqual(err.pos, idx)
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self.assertEqual(err.lineno, 1)
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self.assertEqual(err.colno, idx + 1)
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self.assertEqual(str(err),
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'%s: line 1 column %d (char %d)' %
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(msg, idx + 1, idx))
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def test_extra_data(self):
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test_cases = [
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('[]]', 'Extra data', 2),
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('{}}', 'Extra data', 2),
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('[],[]', 'Extra data', 2),
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('{},{}', 'Extra data', 2),
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]
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test_cases += [
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('42,"spam"', 'Extra data', 2),
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('"spam",42', 'Extra data', 6),
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]
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for data, msg, idx in test_cases:
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with self.assertRaises(self.JSONDecodeError) as cm:
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self.loads(data)
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err = cm.exception
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self.assertEqual(err.msg, msg)
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self.assertEqual(err.pos, idx)
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self.assertEqual(err.lineno, 1)
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self.assertEqual(err.colno, idx + 1)
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self.assertEqual(str(err),
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'%s: line 1 column %d (char %d)' %
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(msg, idx + 1, idx))
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def test_linecol(self):
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test_cases = [
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('!', 1, 1, 0),
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(' !', 1, 2, 1),
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('\n!', 2, 1, 1),
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('\n \n\n !', 4, 6, 10),
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]
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for data, line, col, idx in test_cases:
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with self.assertRaises(self.JSONDecodeError) as cm:
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self.loads(data)
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err = cm.exception
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self.assertEqual(err.msg, 'Expecting value')
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self.assertEqual(err.pos, idx)
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self.assertEqual(err.lineno, line)
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self.assertEqual(err.colno, col)
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self.assertEqual(str(err),
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'Expecting value: line %s column %d (char %d)' %
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(line, col, idx))
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class TestPyFail(TestFail, PyTest): pass
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class TestCFail(TestFail, CTest): pass
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