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