如何使用JUnit 5在Kotlin中创建TestContainers基本测试类

dependencies {
    testImplementation("org.junit.jupiter:junit-jupiter-api:5.x.x")
    testImplementation("org.junit.jupiter:junit-jupiter-engine:5.x.x")
    testImplementation("org.testcontainers:testcontainers:1.x.x")
    testImplementation("org.testcontainers:junit-jupiter:1.x.x")
}

import org.junit.jupiter.api.TestInstance

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class MyTest {
    // 测试方法将在此类中共享同一个容器实例
}

import org.junit.jupiter.api.TestInstance
import org.junit.jupiter.api.extension.RegisterExtension
import org.testcontainers.containers.MySQLContainer

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class MyTest {
    @RegisterExtension
    val mysqlContainer = MySQLContainer<Nothing>("mysql:8.0.26")
    
    // 其他测试方法
}

import org.junit.jupiter.api.Test
import org.junit.jupiter.api.TestInstance
import org.junit.jupiter.api.extension.RegisterExtension
import org.testcontainers.containers.MySQLContainer

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class MyTest {
    @RegisterExtension
    val mysqlContainer = MySQLContainer<Nothing>("mysql:8.0.26")
    
    @Test
    fun testSomething() {
        val jdbcUrl = mysqlContainer.jdbcUrl
        val username = mysqlContainer.username
        val password = mysqlContainer.password
        
        // 使用容器连接信息进行测试
        
        // 断言和验证
    }
}