def test_parse_ok(self):
self.assertIsInstance(Push.parse(['ax']), Push)
def test_execute(self):
p = Push.parse(['ax'])
ctx = Context(None)
ctx.registers.set(AX, 0x0022)
p.execute(ctx)
self.assertEqual(ctx.stack.get(0xFFFF)[0], 0x0022)
def test_parse_bad_number_of_arguments(self):
self.assertRaises(SyntaxError, lambda: Push.parse(['ax,', '2']))
