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abea73bf4a
This makes the parser consistent with the tokenize module (already the case
in `pypy`).
sample
------
```python
x = 5\
```
before
------
```console
$ python3 t.py
$ python3 -mtokenize t.py
t.py:2:0: error: EOF in multi-line statement
```
after
-----
```console
$ ./python t.py
File "t.py", line 3
x = 5\
^
SyntaxError: unexpected EOF while parsing
$ ./python -m tokenize t.py
t.py:2:0: error: EOF in multi-line statement
```
https://bugs.python.org/issue2180
52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
"""test script for a few new invalid token catches"""
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import sys
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from test import support
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from test.support import script_helper
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import unittest
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class EOFTestCase(unittest.TestCase):
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def test_EOFC(self):
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expect = "EOL while scanning string literal (<string>, line 1)"
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try:
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eval("""'this is a test\
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""")
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except SyntaxError as msg:
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self.assertEqual(str(msg), expect)
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else:
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raise support.TestFailed
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def test_EOFS(self):
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expect = ("EOF while scanning triple-quoted string literal "
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"(<string>, line 1)")
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try:
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eval("""'''this is a test""")
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except SyntaxError as msg:
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self.assertEqual(str(msg), expect)
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else:
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raise support.TestFailed
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def test_line_continuation_EOF(self):
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"""A contination at the end of input must be an error; bpo2180."""
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expect = 'unexpected EOF while parsing (<string>, line 1)'
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with self.assertRaises(SyntaxError) as excinfo:
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exec('x = 5\\')
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self.assertEqual(str(excinfo.exception), expect)
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with self.assertRaises(SyntaxError) as excinfo:
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exec('\\')
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self.assertEqual(str(excinfo.exception), expect)
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@unittest.skipIf(not sys.executable, "sys.executable required")
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def test_line_continuation_EOF_from_file_bpo2180(self):
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"""Ensure tok_nextc() does not add too many ending newlines."""
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with support.temp_dir() as temp_dir:
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file_name = script_helper.make_script(temp_dir, 'foo', '\\')
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rc, out, err = script_helper.assert_python_failure(file_name)
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self.assertIn(b'unexpected EOF while parsing', err)
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file_name = script_helper.make_script(temp_dir, 'foo', 'y = 6\\')
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rc, out, err = script_helper.assert_python_failure(file_name)
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self.assertIn(b'unexpected EOF while parsing', err)
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if __name__ == "__main__":
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unittest.main()
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