@Test  // PUSH20 OP
public void testPUSH20() {

    VM vm = new VM();
    program = new Program(Hex.decode("73A0B0C0D0E0F0A1B1C1D1E1F1A2B2C2D2E2F2A3B3"), invoke);
    String expected = "000000000000000000000000A0B0C0D0E0F0A1B1C1D1E1F1A2B2C2D2E2F2A3B3";
    program.fullTrace();
    vm.step(program);
    assertEquals(expected, Hex.toHexString(program.stack.peek().getData()).toUpperCase()  );
}