code: package io.ray.serve.docdemo.test;
  
  import io.ray.serve.BaseServeTest;
  import io.ray.serve.deployment.Deployment;
  import io.ray.serve.docdemo.ManageDeployment;
  import org.testng.Assert;
  import org.testng.annotations.Test;
  
  public class ManageDeploymentTest extends BaseServeTest {
  
    @Test(groups = {"cluster"})
    public void test() {
      ManageDeployment manageDeployment = new ManageDeployment();
      manageDeployment.create();
  
      Deployment deployment = manageDeployment.query();
      Assert.assertEquals(deployment.getName(), "counter");
      Assert.assertEquals(deployment.getConfig().getNumReplicas().intValue(), 1);
      Assert.assertEquals(deployment.getInitArgs()[0], "1");
  
      manageDeployment.update();
      deployment = manageDeployment.query();
      Assert.assertEquals(deployment.getInitArgs()[0], "2");
  
      manageDeployment.scaleOut();
      deployment = manageDeployment.query();
      Assert.assertEquals(deployment.getConfig().getNumReplicas().intValue(), 1);
    }
  }
  