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