Question

所以这与this的问题基本相同，但我的动机不同。我也使用cucumber-jvm而不是ruby版本。

基本上我想在每个EasyMock.expect()步骤中记录Given的期望值，然后在处理完所有步骤后我想调用replay()（由于easymock的工作原理，这是必要的 - 你必须先记录所有的期望，然后明确地开始重播阶段。

使用EasyMock有没有办法做到这一点？是否有其他方法将Record-Replay-Verify模拟与黄瓜整合？

Answer 1

尝试使用JMockIt。它有更多可以使用的功能，并且还具有您想要的模拟算法。申请很简单。

示例：

package jmockit.tutorial.domain;

import java.math.*;
import java.util.*;
import org.apache.commons.mail.*;
import static jmockit.tutorial.persistence.Database.*;

public final class MyBusinessService
{
   public void doBusinessOperationXyz(EntityX data) throws EmailException
   {
      List<EntityX> items =
(1)      find("select item from EntityX item where item.someProperty = ?1", data.getSomeProperty());

      // Compute or obtain from another service a total value for the new persistent entity:
      BigDecimal total = ...
      data.setTotal(total);

(2)   persist(data);

      sendNotificationEmail(data, items);
   }

   private void sendNotificationEmail(EntityX data, List<EntityX> items) throws EmailException
   {
      Email email = new SimpleEmail();
      email.setSubject("Notification about processing of ...");
(3)   email.addTo(data.getCustomerEmail());

      // Other e-mail parameters, such as the host name of the mail server, have defaults defined
      // through external configuration.

      String message = buildNotificationMessage(items);
      email.setMsg(message);

(4)   email.send();
   }

   private String buildNotificationMessage(List<EntityX> items) { ... }
}

现在使用Expectations API

首先，让我们使用JMockit Expectations API。

package jmockit.tutorial.domain;

import org.apache.commons.mail。; import jmockit.tutorial.persistence。;

import org.junit。; import mockit。;

public final class MyBusinessService_ExpectationsAPI_Test
{
   @Mocked(stubOutClassInitialization = true) final Database unused = null;
   @Mocked SimpleEmail email;

   @Test
   public void doBusinessOperationXyz() throws Exception
   {
      final EntityX data = new EntityX(5, "abc", "abc@xpta.net");

      // Recorded strictly, so matching invocations must be replayed in the same order:
      new Expectations() {{
(1)      Database.find(withSubstring("select"), any);
         result = new EntityX(1, "AX5", "someone@somewhere.com");

(2)      Database.persist(data);
      }};

      // Recorded non-strictly, so matching invocations can be replayed in any order:
      new NonStrictExpectations() {{
(4)      email.send(); times = 1; // a non-strict invocation requires a constraint if expected
      }};

      new MyBusinessService().doBusinessOperationXyz(data);
   }

   @Test(expected = EmailException.class)
   public void doBusinessOperationXyzWithInvalidEmailAddress() throws Exception
   {
      new NonStrictExpectations() {{
(3)      email.addTo((String) withNotNull()); result = new EmailException();

         // If the e-mail address is invalid, sending the message should not be attempted:
         email.send(); times = 0;
      }};

      EntityX data = new EntityX(5, "abc", "someone@somewhere.com");
      new MyBusinessService().doBusinessOperationXyz(data);
   }
}

使用Verifications API

package jmockit.tutorial.domain;

import org.apache.commons.mail.*;
import jmockit.tutorial.persistence.*;

import org.junit.*;
import mockit.*;

public final class MyBusinessService_VerificationsAPI_Test
{
   @Tested MyBusinessService service; // instantiated automatically
   @Mocked(stubOutClassInitialization = true) Database onlyStatics;
   @Capturing Email email; // concrete subclass mocked on demand, when loaded

   final EntityX data = new EntityX(5, "abc", "someone@somewhere.com");

   @Test
   public void doBusinessOperationXyzPersistsData() throws Exception
   {
      // No expectations recorded in this case.

      service.doBusinessOperationXyz(data);

(2)   new Verifications() {{ Database.persist(data); }};
   }

   @Test
   public void doBusinessOperationXyzFindsItemsAndSendsNotificationEmail() throws Exception
   {
      // Invocations that produce a result are recorded, but only those we care about.
      new NonStrictExpectations() {{
(1)      Database.find(withSubstring("select"), (Object[]) null);
         result = new EntityX(1, "AX5", "someone@somewhere.com");
      }};

      service.doBusinessOperationXyz(data);

      new VerificationsInOrder() {{
(3)      email.addTo(data.getCustomerEmail());
(4)      email.send();
      }};
   }
}

我希望这可以回答你的问题。

在Cucumber中的所有给定步骤之后执行EasyMock.replay（）

1 个答案: