Method check

Lib/test/test_tcl.py:333–336

(expr, expected)

        tcl.call('set', 'a', 3)
        tcl.call('set', 'b', 6)
        def check(expr, expected):
            result = tcl.exprstring(expr)
            self.assertEqual(result, expected)
            self.assertIsInstance(result, str)

        self.assertRaises(TypeError, tcl.exprstring)
        self.assertRaises(TypeError, tcl.exprstring, '8.2', '+6')