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76 lines
3.0 KiB
76 lines
3.0 KiB
3 years ago
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"""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 os_helper
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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_EOF_single_quote(self):
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expect = "unterminated string literal (detected at line 1) (<string>, line 1)"
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for quote in ("'", "\""):
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try:
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eval(f"""{quote}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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self.assertEqual(msg.offset, 1)
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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 = ("unterminated triple-quoted string literal (detected at line 1) (<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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self.assertEqual(msg.offset, 1)
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else:
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raise support.TestFailed
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def test_EOFS_with_file(self):
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expect = ("(<string>, line 1)")
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with os_helper.temp_dir() as temp_dir:
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file_name = script_helper.make_script(temp_dir, 'foo', """'''this is \na \ntest""")
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rc, out, err = script_helper.assert_python_failure(file_name)
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self.assertIn(b'unterminated triple-quoted string literal (detected at line 3)', err)
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def test_eof_with_line_continuation(self):
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expect = "unexpected EOF while parsing (<string>, line 1)"
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try:
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compile('"\\xhh" \\', '<string>', 'exec', dont_inherit=True)
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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 continuation 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 os_helper.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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self.assertIn(b'line 1', err)
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self.assertIn(b'\\', 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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self.assertIn(b'line 1', err)
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self.assertIn(b'y = 6\\', err)
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if __name__ == "__main__":
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unittest.main()
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