如何模拟ElasticSeach客户端

Question

我很难模仿下面的代码：

Client client = TransportClient.builder().settings(settings).build().addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

我的方法：

Settings.Builder settingsBuilder = mock(Settings.Builder.class);
when(settingsBuilder.put(new String("test"), new String("test"))).thenReturn(settings.settingsBuilder());
when(settingsBuilder.build()).thenReturn(settings);

TransportClient.Builder clientBuilder = mock(TransportClient.Builder.class);
when(clientBuilder.settings(settings)).thenReturn(clientBuilder);

在此之前，测试工作正常，但是当试图模拟客户机上使用的其他类时，Mockito抛出以下异常：

错误：

org.mockito.exceptions.misusing.MissingMethodInvocationException: 
when() requires an argument which has to be 'a method call on a mock'.
For example:
when(mock.getArticles()).thenReturn(articles);

Also, this error might show up because:
1. you stub either of: final/private/equals()/hashCode() methods.
Those methods *cannot* be stubbed/verified.
Mocking methods declared on non-public parent classes is not supported.
2. inside when() you don't call method on mock but on some other object.

问题：

现在，我意识到这可能会被抛出，因为我没有正确地嘲笑一些东西，但我不知道这次我的嘲笑是怎么回事。如何正确地模拟客户端，从而模拟所有依赖类并返回一个新的模拟客户端？

谢谢。

Answer 1

根据你们的类名，我在这里猜一下。

Client client = TransportClient.builder().settings(settings).build().addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));

假设TransportClient.builder()返回transportClient.Builder，那么您需要：

when(clientBuilder.settings(anyOf(Settings.class)).thenReturn(clientBuilder);
when(clientBuilder.build()).thenReturn(a transport client mock);

我假设TransportClient.addTransportAddress不需要一个模拟--它只需要被验证。