Mocking of non-interface types requires the CGLIB library.

最新推荐文章于 2024-08-26 09:30:00 发布

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最新推荐文章于 2024-08-26 09:30:00 发布

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分类专栏：问题排查文章标签： spock spring 单元测试 mock cglib

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在SpringCloud微服务架构中使用Spock框架进行单元测试时，遇到无法Mock非接口类型的错误。通过添加CGlib依赖，成功解决了问题，使单元测试得以顺利执行。

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spring cloud微服务架构中引入spock单元测试框架，且采用given-when-then-where子句，包含Mock对象时，执行单元测试案例失败，提示如下错误：

org.spockframework.mock.CannotCreateMockException: Cannot create mock for class com.xxx.xxx.xxx.xxx. Mocking of non-interface types requires the CGLIB library. Please put cglib-nodep-2.2 or higher on the class path.
	at org.spockframework.mock.runtime.ProxyBasedMockFactory.create(ProxyBasedMockFactory.java:52)
	at org.spockframework.mock.runtime.JavaMockFactory.create(JavaMockFactory.java:51)
	at org.spockframework.mock.runtime.CompositeMockFactory.create(CompositeMockFactory.java:44)
	at org.spockframework.lang.SpecInternals.createMock(SpecInternals.java:45)
	at org.spockframework.lang.SpecInternals.createMockImpl(SpecInternals.java:281)
	at org.spockframework.lang.SpecInternals.MockImpl(SpecInternals.java:99)
	at com.dashuf.fs.api.FileStoreAPITest.$spock_initializeFields(FileStoreAPITest.groovy:11)

单测代码如下：

    @Unroll
    def "case 01 getSignedString no exception"() {
        given: "获取结果数据"
            def signature = new String("signature")
        when: "获取签名串"
            fileStoreService.getSignedString(_) >> signature
        then:
            def ressign = fileStoreAPI.getSignedString(fileId as String)
            ressign.equals(result)
        where:
            fileId | result
            "01" | "signature"
            "02" | "signature"
            "03" | "signature"
            "04" | "signature"
            "05" | "signature"
    }

根据提示，推测应该是少了cglib库，后面查阅资料得知：在默认情况下，Spock 只能 Mock 接口，增加 cglib 依赖之后，能够 Mock 类。
于是我们在build.gradle中引入依赖如下（版本请可自行调整）：

compile(group: 'cglib', name: 'cglib-nodep', version: '3.1')

如果是采用maven则在pom.xml中加入如下依赖：

        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib-nodep</artifactId>
            <version>3.1</version>
        </dependency>