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