java - Java junits 中的模拟 CosmosClient

Question

我们有一个要求，即从 Azure-CosmosDB - sql api 获取少量记录为了增加覆盖范围，我们想要模拟，但已经搜索了很多，但没有找到 Java。请您在这里指导一下

我的 DAO 类如下

private CosmosClient client;

@Autowired
public DAO(CosmosClient client) {
    this.client = client;
}

CosmosDatabase database;
CosmosContainer container;

    private static final String DATABASE = "test-db";
    private static final String CONTAINER = "test-container";

   /**
     * Test method
     */
    public List<TestVO> fetchTestData() {

       // create database
        CosmosDatabaseResponse databaseResponse = client.createDatabaseIfNotExists(DATABASE);
        database = client.getDatabase(databaseResponse.getProperties().getId());

      // create container
        CosmosContainerProperties containerProperties = new CosmosContainerProperties(CONTAINER, "/pkey");
        CosmosContainerResponse containerResponse = database.createContainerIfNotExists(containerProperties,
                throughputProperties);
        container = database.getContainer(containerResponse.getProperties().getId());

           // Form querySpec
            Iterable<FeedResponse<Test>> feedRespIter = container
                    .queryItems(querySpec, queryOptions, Test.class).iterableByPage(continuationToken, pageSize);

            // iterate list of documents to return shipping list
            if (feedRespIter .iterator().hasNext()) {
                // Some business logic
            }
    }

在向 cosmosClient 注入(inject)模拟或只是模拟时，我收到错误

Cannot mock/spy class com.azure.cosmos.CosmosClient
Mockito cannot mock/spy because
 - final class
    at org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener.initMocks(MockitoTestExecutionListener.java:83)
    at org.springframework.boot.test.mock.mockito.MockitoTestExecutionListener.prepareTestInstance(MockitoTestExecutionListener.java:60)

Answer 1

CosmosClient 是一个最终类，要模拟最终类，您需要使用以下步骤配置 Mockito 功能:

在以下路径中创建文件:

src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker

包含以下内容:

mock-maker-inline

这应该启用最终类的模拟。