Spring boot with testcontainers and jOOQ doesn't inject DSL context - spring-boot

Question

I have some problem with spring boot + jOOQ and testcontainers. DSL context won't inject in my test class.
I made some preparations for using SQLContainer
class SpringTestContainer: PostgreSQLContainer<SpringTestContainer> {
private val postgreSqlPort = 5432
private val db = "m4"
companion object {
var instance: SpringTestContainer? = null
fun get(): SpringTestContainer {
if(instance == null) {
instance = SpringTestContainer()
}
return instance!!
}
}
override fun getDatabaseName(): String = db
constructor() : this("registry.dev.tskad.stdev.ru/m4/db:latest")
constructor(dockerImageName: String) : super(dockerImageName){
withImagePullPolicy(PullPolicy.alwaysPull())
addExposedPort(postgreSqlPort)
waitStrategy = LogMessageWaitStrategy()
.withRegEx(".*database system is ready to accept connections.*\\s")
.withTimes(1)
.withStartupTimeout(Duration.of(30, ChronoUnit.SECONDS))
}
override fun getJdbcUrl(): String {
return String.format("jdbc:postgresql://%s:%d/%s", containerIpAddress, getMappedPort(postgreSqlPort), databaseName)
}
override fun waitUntilContainerStarted() {
getWaitStrategy().waitUntilReady(this)
}
override fun getLivenessCheckPorts(): Set<Int?> {
return HashSet(getMappedPort(postgreSqlPort))
}
}
Then I created some abstraction for extending my integration test classes
#ContextConfiguration(initializers = [SpringIntegrationTest.Initializer::class])
#AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
#JooqTest
abstract class SpringIntegrationTest {
#get:Rule
var postgreSQLContainer = SpringTestContainer.get()
inner class Initializer: ApplicationContextInitializer<ConfigurableApplicationContext> {
override fun initialize(applicationContext: ConfigurableApplicationContext) {
with(applicationContext.environment.systemProperties) {
put("spring.datasource.url", postgreSQLContainer.jdbcUrl)
put("spring.datasource.username", postgreSQLContainer.username)
put("spring.datasource.password", postgreSQLContainer.password)
}
}
}
}
and then I implemented test class
#ExtendWith(SpringExtension::class)
class TransactionRepositoryImplTest: SpringIntegrationTest() {
#Autowired
private var dslContext: DSLContext? = null
private var transactionRepository: TransactionRepository? = null
#Before
fun setUp() {
assertThat(dslContext).isNotNull
transactionRepository = TransactionRepositoryImpl(dslContext!!)
}
#After
fun tearDown() {
}
#Test
fun findTransactionData() {
transactionRepository?.findTransactionByVehicleUuid(null).apply {
assertNull(this)
}
}
}
and when I started tests of this class - tests are fails, because of assertions are not passed.
Here is the report of tests https://pastebin.com/0HeqDcCT
So.. how it impossible? I saw a few guides with this stack(Spring/jOOQ/TestContainers). And they are all working. Maybe I missed some test dependencies? If you have experience with this case - share your solution, please. I will be very grateful.
dependencies {
implementation("org.jetbrains.kotlin:kotlin-reflect")
implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
implementation("org.springframework.boot:spring-boot-starter-jooq")
implementation("org.springframework.boot:spring-boot-starter-web")
implementation("org.springframework.boot:spring-boot-starter-actuator")
implementation("org.springframework.cloud:spring-cloud-starter-consul-config")
implementation("org.springframework.cloud:spring-cloud-stream")
implementation("org.springframework.cloud:spring-cloud-stream-binder-kafka")
implementation("org.springframework.kafka:spring-kafka")
implementation("org.springframework.boot:spring-boot-starter-amqp")
implementation ("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.10.3")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.10.3")
runtimeOnly("org.postgresql:postgresql:42.2.12")
jooqGeneratorRuntime("org.postgresql:postgresql:42.2.12")
annotationProcessor("org.springframework.boot:spring-boot-configuration-processor")
testImplementation("org.springframework.boot:spring-boot-starter-test") {
exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
exclude(module = "junit")
}
testImplementation("com.ninja-squad:springmockk:2.0.1")
testImplementation("org.springframework.cloud:spring-cloud-stream-test-support")
testImplementation("org.springframework.kafka:spring-kafka-test")
testImplementation("org.springframework.amqp:spring-rabbit-test")
testImplementation("org.testcontainers:postgresql:1.14.3")
}

Answer 1

I might be missing something but in that setup, you have to manually run
postgreSQLContainer.start() somewhere. As an example it could be done in #BeforeAll.

Answer 2

I found the solution. The right way was to override the start method of test containers implementation and put in system properties the credentials to container DB.
Here is the working code:
class SpringTestContainer: PostgreSQLContainer<SpringTestContainer> {
private val postgreSqlPort = 5432
private val db = "m4"
companion object {
var instance: SpringTestContainer? = null
fun get(): SpringTestContainer {
if(instance == null) {
instance = SpringTestContainer()
}
return instance!!
}
}
override fun getDatabaseName(): String = db
constructor() : this("registry.dev.tskad.stdev.ru/m4/db:latest")
constructor(dockerImageName: String) : super(dockerImageName){
withImagePullPolicy(PullPolicy.alwaysPull())
addExposedPort(postgreSqlPort)
waitStrategy = LogMessageWaitStrategy()
.withRegEx(".*database system is ready to accept connections.*\\s")
.withTimes(1)
.withStartupTimeout(Duration.of(30, ChronoUnit.SECONDS))
}
override fun getJdbcUrl(): String {
return String.format("jdbc:postgresql://%s:%d/%s", containerIpAddress, getMappedPort(postgreSqlPort), databaseName)
}
override fun waitUntilContainerStarted() {
getWaitStrategy().waitUntilReady(this)
}
override fun getLivenessCheckPorts(): Set<Int?> {
return HashSet(getMappedPort(postgreSqlPort))
}
override fun start() {
super.start()
val container = get()
System.setProperty("DB_URL", container.jdbcUrl)
System.setProperty("DB_USERNAME", container.username)
System.setProperty("DB_PASSWORD", container.password)
}
}
#AutoConfigureTestDatabase(replace = AutoConfigureTestDatabase.Replace.NONE)
#SpringBootTest(properties = ["spring.cloud.consul.enabled = false"])
#EnableAutoConfiguration(exclude = [
RabbitAutoConfiguration::class,
KafkaAutoConfiguration::class
])
class TransactionRepositoryImplTest {
#get:Rule
var postgreSQLContainer = SpringTestContainer.get()
#Autowired
private lateinit var dslContext: DSLContext
#Autowired
private lateinit var transactionRepository: TransactionRepository
#MockkBean
private lateinit var connectionFactory: ConnectionFactory // this is the mock for rabbit connection. U may ignore it.
#Test
fun contextLoads() {
Assertions.assertNotNull(dslContext)
Assertions.assertNotNull(transactionRepository)
}
}
and then need to fix application.yml in the tests directory
spring:
datasource:
platform: postgres
url: ${DB_URL}
username: ${DB_USERNAME}
password: ${DB_PASSWORD}
driverClassName: org.postgresql.Driver

Answer 3

in java it helps me:
on test put annotation. See JooqAutoConfiguration.class
#Import({ DataSourceAutoConfiguration.class,
TransactionAutoConfiguration.class, JooqAutoConfiguration.class})