Question

由于Kotlin中的所有课程默认为final，因此Mockito无法监视最终课程：

Cannot mock/spy class bye.persistence.jdbcTrial
Mockito cannot mock/spy following:
  - final classes
  - anonymous classes
  - primitive types

this guide （7月6日，Danny Preussler）说，需要一个框架来解决这个问题。

现在我想知道，是否可以测试REST API（使用Spring MockMvc）。以下是我的测试代码：

package byeTest.persistenceTest
import bye.domain.User
import bye.persistence.jdbcTrial
import bye.spring.GreetingController
import byeTest.persistenceTest.RestAPITest.RootConfig
import org.junit.Before
import org.junit.Test
import org.junit.runner.RunWith
import org.mockito.BDDMockito.given
import org.mockito.Mockito
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.http.MediaType
import org.springframework.test.context.ContextConfiguration
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner
import org.springframework.test.context.web.WebAppConfiguration
import org.springframework.test.web.servlet.MockMvc
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get
import org.springframework.test.web.servlet.result.MockMvcResultMatchers.content
import org.springframework.test.web.servlet.setup.MockMvcBuilders
import org.springframework.web.context.WebApplicationContext

@RunWith(SpringJUnit4ClassRunner::class)
@ContextConfiguration(classes = arrayOf(RootConfig::class))
@WebAppConfiguration
open class RestAPITest {
    var mockMvc: MockMvc? = null;

    @Autowired
    var wac : WebApplicationContext? = null;

    @Autowired
    var jdbcTrial : jdbcTrial? = null

    @Autowired
    var todoServiceMock : GreetingController? = null;

    @Before
    open fun setup(){
        mockMvc = MockMvcBuilders.webAppContextSetup(this.wac).build()
        given(this.jdbcTrial?.getUserById(2)).willReturn(User(2,"uname","typ"));

    }



    @Test
    open public fun find_2(){
        mockMvc!!.perform(get("/user/2").accept(MediaType.APPLICATION_JSON))

            .andExpect(content().string("{\"id\":2,\"username\":\"uname\",\"usertype\":\"typ\"}"))


    }

    @Configuration
    open class RootConfig{
        @Bean
        open fun jdbcTrial():jdbcTrial{
            return Mockito.mock(jdbcTrial::class.java)
        }
    }
}

我将所有使用的函数和类设置为open，因为根据kotlin docs，这与final完全相反。但是使用它（无处不在）仍然会引发上述异常。

import bye.domain.Comment
import bye.domain.Event
import bye.domain.Participant
import bye.domain.User
import java.sql.Connection
import java.sql.DriverManager
import java.sql.ResultSet
import java.sql.Statement
import java.util.ArrayList
import javax.sql.DataSource

open class jdbcTrial() {
    open var url: String = "jdbc:postgresql://rosdel.quintor.local:5432/quintorevents"
    //val props: Properties = Properties();

    open var DB_DRIVER = "org.postgresql.Driver";
    open var dataSource:String? = "b";

    constructor(s : String):this(){
        this.dataSource = s
    }

    open fun getFoo():String{
        var query : String = "select val_col from foo_tbl where key_col = 'foo';"
        var rs:ResultSet = this.getConnection().createStatement().executeQuery(query)
        var result:String = "wrong";
        while(rs.next()){
            result= rs.getString("val_col")
        }
        return result;
    }

    open fun getBaz():String{
        return "qux"
    }

    // /events
    open fun getAll(): List<Event> {
        return getMultipleEvents("select * from quintor_event;")
    }

    // /events/search
    open fun searchEvents(search: String): List<Event> {
        var query = "select * from quintor_event where title LIKE '%" + search + "%';"
        return getMultipleEvents(query)
    }

    // used for getting the comments
    open fun getUserById(id: Int): User {
        var query = "select * from quintor_user where id = ${id};";
        return getSingleUser(query)
    }
    ........

Answer 1

关于kotlin中的模拟最终课程–您可以使用mockito kotlin库。它可以在github上找到。在此链接https://hadihariri.com/2016/10/04/Mocking-Kotlin-With-Mockito/中，您可以找到操作方法。我每天都在使用它，我也从春季开始使用mockmvc，而且效果很好。

Kotlin - Mockito无法模拟/间谍（Spring REST API）

1 个答案: