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- import re
- import unittest
- import warnings
-
- from test import test_support
-
- class SyntaxTestCase(unittest.TestCase):
-
- def _check_error(self, code, errtext,
- filename="<testcase>", mode="exec"):
- """Check that compiling code raises SyntaxError with errtext.
-
- errtest is a regular expression that must be present in the
- test of the exception raised.
- """
- try:
- compile(code, filename, mode)
- except SyntaxError, err:
- mo = re.search(errtext, str(err))
- if mo is None:
- self.fail("SyntaxError did not contain '%s'" % `errtext`)
- else:
- self.fail("compile() did not raise SyntaxError")
-
- def test_assign_call(self):
- self._check_error("f() = 1", "assign")
-
- def test_assign_del(self):
- self._check_error("del f()", "delete")
-
- def test_global_err_then_warn(self):
- # Bug tickler: The SyntaxError raised for one global statement
- # shouldn't be clobbered by a SyntaxWarning issued for a later one.
- source = re.sub('(?m)^ *:', '', """\
- :def error(a):
- : global a # SyntaxError
- :def warning():
- : b = 1
- : global b # SyntaxWarning
- :""")
- warnings.filterwarnings(action='ignore', category=SyntaxWarning)
- self._check_error(source, "global")
- warnings.filters.pop(0)
-
- def test_main():
- test_support.run_unittest(SyntaxTestCase)
-
- if __name__ == "__main__":
- test_main()
-