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import unittest
import ast
import gast
import sys
class UnparserTestCase(unittest.TestCase):
def __init__(self, *args, **kwargs):
unittest.TestCase.__init__(self, *args, **kwargs)
self.maxDiff = None
def assertUnparse(self, code):
normalized_code = ast.unparse(ast.parse(code))
tree = gast.parse(normalized_code)
compile(gast.gast_to_ast(tree), '<test>', 'exec')
unparsed = gast.unparse(tree)
self.assertEqual(normalized_code, unparsed)
def test_FunctionDef(self):
self.assertUnparse('def foo(x, y): return x, y')
def test_BinaryOp(self):
self.assertUnparse('1 + 3')
if sys.version_info >= (3, 12):
def test_TypeParameter(self):
self.assertUnparse('type x[T] = list[T]')
if sys.version_info < (3, 9):
del UnparserTestCase
if __name__ == '__main__':
unittest.main()
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