mirror of https://github.com/python/cpython
98 lines
2.8 KiB
Python
98 lines
2.8 KiB
Python
"""
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Test cases for codeop.py
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Nick Mathewson
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"""
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import unittest
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from test.test_support import run_unittest
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from codeop import compile_command, PyCF_DONT_IMPLY_DEDENT
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class CodeopTests(unittest.TestCase):
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def assertValid(self, str, symbol='single'):
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'''succeed iff str is a valid piece of code'''
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expected = compile(str, "<input>", symbol, PyCF_DONT_IMPLY_DEDENT)
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self.assertEquals( compile_command(str, "<input>", symbol), expected)
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def assertIncomplete(self, str, symbol='single'):
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'''succeed iff str is the start of a valid piece of code'''
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self.assertEquals( compile_command(str, symbol=symbol), None)
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def assertInvalid(self, str, symbol='single', is_syntax=1):
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'''succeed iff str is the start of an invalid piece of code'''
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try:
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compile_command(str,symbol=symbol)
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self.fail("No exception thrown for invalid code")
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except SyntaxError:
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self.assert_(is_syntax)
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except OverflowError:
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self.assert_(not is_syntax)
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def test_valid(self):
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av = self.assertValid
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av("a = 1\n")
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av("def x():\n pass\n")
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av("pass\n")
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av("3**3\n")
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av("if 9==3:\n pass\nelse:\n pass\n")
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av("#a\n#b\na = 3\n")
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av("#a\n\n \na=3\n")
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av("a=3\n\n")
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# special case
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self.assertEquals(compile_command(""),
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compile("pass", "<input>", 'single',
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PyCF_DONT_IMPLY_DEDENT))
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av("3**3","eval")
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av("(lambda z: \n z**3)","eval")
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av("#a\n#b\na**3","eval")
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def test_incomplete(self):
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ai = self.assertIncomplete
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ai("(a **")
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ai("def x():\n")
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ai("(a,b,")
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ai("(a,b,(")
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ai("(a,b,(")
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ai("if 9==3:\n pass\nelse:\n")
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ai("if 9==3:\n pass\nelse:\n pass")
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ai("a = (")
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ai("a = 9+ \\")
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ai("(","eval")
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ai("(\n\n\n","eval")
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ai("(9+","eval")
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ai("9+ \\","eval")
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ai("lambda z: \\","eval")
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def test_invalid(self):
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ai = self.assertInvalid
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ai("a b")
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ai("a = ")
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ai("a = 9 +")
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ai("a = 1","eval")
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ai("a = (","eval")
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ai("]","eval")
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ai("())","eval")
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ai("[}","eval")
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ai("9+","eval")
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ai("lambda z:","eval")
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ai("a b","eval")
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def test_filename(self):
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self.assertEquals(compile_command("a = 1\n", "abc").co_filename,
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compile("a = 1\n", "abc", 'single').co_filename)
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self.assertNotEquals(compile_command("a = 1\n", "abc").co_filename,
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compile("a = 1\n", "def", 'single').co_filename)
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def test_main():
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run_unittest(CodeopTests)
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if __name__ == "__main__":
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test_main()
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