Method test_load_const

Lib/test/test_ast/test_ast.py:2676–2702

(self)

    @support.cpython_only
    def test_load_const(self):
        consts = [None,
                  True, False,
                  1000,
                  2.0,
                  3j,
                  "unicode",
                  b'bytes',
                  (1, 2, 3)]

        code = '\n'.join(['x={!r}'.format(const) for const in consts])
        code += '\nx = ...'
        consts.extend((Ellipsis, None))

        tree = ast.parse(code)
        self.assertEqual(self.get_load_const(tree),
                         consts)

        # Replace expression nodes with constants
        for assign, const in zip(tree.body, consts):
            assert isinstance(assign, ast.Assign), ast.dump(assign)
            new_node = ast.Constant(value=const)
            ast.copy_location(new_node, assign.value)
            assign.value = new_node

        self.assertEqual(self.get_load_const(tree),
                         consts)

    def test_literal_eval(self):
        tree = ast.parse("1 + 2")