@Test
 public void testCtf1() throws IOException {
   try (DataInputStream dataInputStream = streamSimulator.getDataInputStream();
       DataOutputStream dataOutputStream = streamSimulator.getDataOutputStream()) {
     Protocol protocol = new Protocol(dataInputStream, dataOutputStream);
     streamSimulator.writeForInputStream("ROK 1 9");
     protocol.ayt();
     streamSimulator.writeForInputStream("ROK 0 ");
     protocol.sco("test");
     streamSimulator.writeForInputStream("ROK 13 crashed=false");
     protocol.ctt();
     streamSimulator.writeForInputStream("ROK 0 ");
     protocol.swa("test");
     streamSimulator.writeForInputStream("ROK 13 crashed=false");
     ReceiveMessage receiveMessage = protocol.ctf("abc123".getBytes(StandardCharsets.UTF_8));
     Assert.assertEquals(receiveMessage.getCommand(), Command.ROK);
     Assert.assertEquals(
         receiveMessage.getBody(), "crashed=false".getBytes(StandardCharsets.UTF_8));
     Assert.assertEquals(
         streamSimulator.readLastFromOutputStream(),
         "CTF 6 abc123".getBytes(StandardCharsets.UTF_8));
   } catch (ProtocolStateException ignored) {
     Assert.fail();
   }
 }
 @Test
 public void testSwa2() throws IOException {
   try (DataInputStream dataInputStream = streamSimulator.getDataInputStream();
       DataOutputStream dataOutputStream = streamSimulator.getDataOutputStream()) {
     Protocol protocol = new Protocol(dataInputStream, dataOutputStream);
     protocol.swa("test");
     Assert.fail();
   } catch (ProtocolStateException ignored) {
   }
 }