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51 lines
957 B
Python
51 lines
957 B
Python
"""Verify that warnings are issued for global statements following use."""
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from test.test_support import run_unittest, check_syntax_error
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import unittest
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import warnings
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warnings.filterwarnings("error", module="<test string>")
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class GlobalTests(unittest.TestCase):
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def test1(self):
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prog_text_1 = """\
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def wrong1():
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a = 1
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b = 2
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global a
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global b
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"""
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check_syntax_error(self, prog_text_1)
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def test2(self):
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prog_text_2 = """\
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def wrong2():
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print(x)
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global x
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"""
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check_syntax_error(self, prog_text_2)
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def test3(self):
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prog_text_3 = """\
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def wrong3():
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print(x)
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x = 2
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global x
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"""
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check_syntax_error(self, prog_text_3)
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def test4(self):
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prog_text_4 = """\
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global x
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x = 2
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"""
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# this should work
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compile(prog_text_4, "<test string>", "exec")
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def test_main():
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run_unittest(GlobalTests)
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if __name__ == "__main__":
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test_main()
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