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"""test script for a few new invalid token catches"""
import sys
from codecs import BOM_UTF8
from test import support
from test.support import os_helper
from test.support import script_helper
from test.support import warnings_helper
import unittest
class EOFTestCase(unittest.TestCase):
def test_EOF_single_quote(self):
expect = "unterminated string literal (detected at line 1) (<string>, line 1)"
for quote in ("'", "\""):
with self.assertRaises(SyntaxError) as cm:
eval(f"""{quote}this is a test\
""")
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.offset, 1)
def test_EOFS(self):
expect = ("unterminated triple-quoted string literal (detected at line 3) (<string>, line 1)")
with self.assertRaises(SyntaxError) as cm:
eval("""ä = '''thîs is \na \ntest""")
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, "ä = '''thîs is ")
self.assertEqual(cm.exception.offset, 5)
with self.assertRaises(SyntaxError) as cm:
eval("""ä = '''thîs is \na \ntest""".encode())
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, "ä = '''thîs is ")
self.assertEqual(cm.exception.offset, 5)
with self.assertRaises(SyntaxError) as cm:
eval(BOM_UTF8 + """ä = '''thîs is \na \ntest""".encode())
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, "ä = '''thîs is ")
self.assertEqual(cm.exception.offset, 5)
with self.assertRaises(SyntaxError) as cm:
eval("""# coding: latin1\nä = '''thîs is \na \ntest""".encode('latin1'))
self.assertEqual(str(cm.exception), "unterminated triple-quoted string literal (detected at line 4) (<string>, line 2)")
self.assertEqual(cm.exception.text, "ä = '''thîs is ")
self.assertEqual(cm.exception.offset, 5)
def test_EOFS_with_file(self):
expect = ("(<string>, line 1)")
with os_helper.temp_dir() as temp_dir:
file_name = script_helper.make_script(temp_dir, 'foo',
"""ä = '''thîs is \na \ntest""")
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
" ä = '''thîs is ",
' ^',
'SyntaxError: unterminated triple-quoted string literal (detected at line 3)'])
file_name = script_helper.make_script(temp_dir, 'foo',
"""ä = '''thîs is \na \ntest""".encode())
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
" ä = '''thîs is ",
' ^',
'SyntaxError: unterminated triple-quoted string literal (detected at line 3)'])
file_name = script_helper.make_script(temp_dir, 'foo',
BOM_UTF8 + """ä = '''thîs is \na \ntest""".encode())
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
" ä = '''thîs is ",
' ^',
'SyntaxError: unterminated triple-quoted string literal (detected at line 3)'])
file_name = script_helper.make_script(temp_dir, 'foo',
"""# coding: latin1\nä = '''thîs is \na \ntest""".encode('latin1'))
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
" ä = '''thîs is ",
' ^',
'SyntaxError: unterminated triple-quoted string literal (detected at line 4)'])
@warnings_helper.ignore_warnings(category=SyntaxWarning)
def test_eof_with_line_continuation(self):
expect = "unexpected EOF while parsing (<string>, line 1)"
with self.assertRaises(SyntaxError) as cm:
compile('"\\Xhh" \\', '<string>', 'exec')
self.assertEqual(str(cm.exception), expect)
def test_line_continuation_EOF(self):
"""A continuation at the end of input must be an error; bpo2180."""
expect = 'unexpected EOF while parsing (<string>, line 1)'
with self.assertRaises(SyntaxError) as cm:
exec('ä = 5\\')
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, 'ä = 5\\\n')
self.assertEqual(cm.exception.offset, 7)
with self.assertRaises(SyntaxError) as cm:
exec('ä = 5\\'.encode())
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, 'ä = 5\\\n')
self.assertEqual(cm.exception.offset, 7)
with self.assertRaises(SyntaxError) as cm:
exec('# coding:latin1\nä = 5\\'.encode('latin1'))
self.assertEqual(str(cm.exception),
'unexpected EOF while parsing (<string>, line 2)')
self.assertEqual(cm.exception.text, 'ä = 5\\\n')
self.assertEqual(cm.exception.offset, 7)
with self.assertRaises(SyntaxError) as cm:
exec(BOM_UTF8 + 'ä = 5\\'.encode())
self.assertEqual(str(cm.exception), expect)
self.assertEqual(cm.exception.text, 'ä = 5\\\n')
self.assertEqual(cm.exception.offset, 7)
with self.assertRaises(SyntaxError) as cm:
exec('\\')
self.assertEqual(str(cm.exception), expect)
@unittest.skipIf(not sys.executable, "sys.executable required")
def test_line_continuation_EOF_from_file_bpo2180(self):
"""Ensure tok_nextc() does not add too many ending newlines."""
with os_helper.temp_dir() as temp_dir:
file_name = script_helper.make_script(temp_dir, 'foo', '\\')
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-2:], [
' \\',
'SyntaxError: unexpected EOF while parsing'])
self.assertEqual(err[-3][-8:], ', line 1', err)
file_name = script_helper.make_script(temp_dir, 'foo', 'ä = 6\\')
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
' ä = 6\\',
' ^',
'SyntaxError: unexpected EOF while parsing'])
self.assertEqual(err[-4][-8:], ', line 1', err)
file_name = script_helper.make_script(temp_dir, 'foo',
'# coding:latin1\n'
'ä = 7\\'.encode('latin1'))
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
' ä = 7\\',
' ^',
'SyntaxError: unexpected EOF while parsing'])
self.assertEqual(err[-4][-8:], ', line 2', err)
file_name = script_helper.make_script(temp_dir, 'foo',
BOM_UTF8 + 'ä = 8\\'.encode())
rc, out, err = script_helper.assert_python_failure('-X', 'utf8', file_name)
err = err.decode().splitlines()
self.assertEqual(err[-3:], [
' ä = 8\\',
' ^',
'SyntaxError: unexpected EOF while parsing'])
self.assertEqual(err[-4][-8:], ', line 1', err)
if __name__ == "__main__":
unittest.main()
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