How to use TestcontainersR2DBCConnectionFactory class of org.testcontainers.r2dbc package

Best Testcontainers-java code snippet using org.testcontainers.r2dbc.TestcontainersR2DBCConnectionFactory

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...12import java.util.concurrent.Executor;13import java.util.concurrent.Executors;14import java.util.concurrent.atomic.AtomicLong;15import java.util.stream.StreamSupport;16class TestcontainersR2DBCConnectionFactory implements ConnectionFactory, Closeable {17 private static final AtomicLong THREAD_COUNT = new AtomicLong();18 private static final Executor EXECUTOR = Executors.newCachedThreadPool(r -> {19 Thread thread = new Thread(r);20 thread.setName("testcontainers-r2dbc-" + THREAD_COUNT.getAndIncrement());21 thread.setDaemon(true);22 return thread;23 });24 private final ConnectionFactoryOptions options;25 private final R2DBCDatabaseContainerProvider containerProvider;26 private CompletableFuture<R2DBCDatabaseContainer> future;27 TestcontainersR2DBCConnectionFactory(ConnectionFactoryOptions options) {28 this.options = options;29 containerProvider = StreamSupport.stream(ServiceLoader.load(R2DBCDatabaseContainerProvider.class).spliterator(), false)30 .filter(it -> it.supports(options))31 .findAny()32 .orElseThrow(() -> new IllegalArgumentException("Missing provider for " + options));33 }34 @Override35 public Publisher<? extends Connection> create() {36 return new ConnectionPublisher(37 () -> {38 if (future == null) {39 synchronized (this) {40 if (future == null) {41 future = CompletableFuture.supplyAsync(() -> {...

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TestcontainersR2DBCConnectionFactory

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1val connection = testcontainersConnectionFactory.create().block()2val result = connection.createStatement("SELECT 1").execute().map { it.map { it.get(0) } }.flatMap { Flux.from(it) }.blockFirst()3assertThat(result).isEqualTo(1)4container.start()5val connection = container.createConnection()6val result = connection.createStatement("SELECT 1").execute().map { it.map { it.get(0) } }.flatMap { Flux.from(it) }.blockFirst()7assertThat(result).isEqualTo(1)8container.start()9val connection = container.createConnection()10val result = connection.createStatement("SELECT 1").execute().map { it.map { it.get(0) } }.flatMap { Flux.from(it) }.blockFirst()11assertThat(result).isEqualTo(1)12container.start()13val connection = container.createConnection()14val result = connection.createStatement("SELECT 1").execute().map { it.map { it.get(0) } }.flatMap { Flux.from(it) }.blockFirst()15assertThat(result).isEqualTo(1)16container.start()17val connection = container.createConnection()18val result = connection.createStatement("SELECT 1").execute().map { it.map { it.get(0) } }.flatMap { Flux.from(it) }.blockFirst()

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TestcontainersR2DBCConnectionFactory

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1val testcontainersConnectionFactory = TestcontainersR2DBCConnectionFactory("postgres:13.4-alpine")2val connection = testcontainersConnectionFactory.create().block()3val statement = connection.createStatement("SELECT 1")4val result = statement.execute().block()5val connection = connectionFactory.create().block()6val statement = connection.createStatement("SELECT 1")7val result = statement.execute().block()8val connection = connectionFactory.create().block()9val statement = connection.createStatement("SELECT 1")10val result = statement.execute().block()11fun main(args: Array<String>) {12 runApplication<Application>(*args)13}14class TestConfig {15 fun connectionFactory(): ConnectionFactory {16 }17}18data class TestEntity(19@RunWith(SpringRunner::class)20class TestRepositoryTest {21 fun test() {22 val testEntity = testRepository.save(TestEntity(1, "test")).block()23 assertThat(testEntity).isNotNull24 }25}

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TestcontainersR2DBCConnectionFactory

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1import org.testcontainers.r2dbc.TestcontainersR2DBCConnectionFactory2import org.springframework.data.r2dbc.core.DatabaseClient3import org.springframework.data.r2dbc.core.awaitOne4import org.springframework.data.r2dbc.core.awaitRowsUpdated5import org.springframework.r2dbc.connection.init.ConnectionFactoryInitializer6import org.springframework.r2dbc.connection.init.ResourceDatabasePopulator7import org.springframework.r2dbc.core.DatabaseClient8import org.springframework.r2dbc.core.awaitOne9import org.springframework.r2dbc.core.awaitRowsUpdated10import org.springframework.r2dbc.connection.init.ConnectionFactoryInitializer11import org.springframework.r2dbc.connection.init.ResourceDatabasePopulator12import org.testcontainers.containers.GenericContainer13import org.testcontainers.junit.jupiter.Container14import org.testcontainers.junit.jupiter.Testcontainers15import org.junit.jupiter.api.Test16import org.springframework.boot.test.context.SpringBootTest17import org.springframework.test.context.ContextConfiguration18import reactor.core.publisher.toMono19import java.time.Duration20import java.util.function.Consumer21class TestcontainersR2dbcTest {22 companion object {23 val container = GenericContainer("h2:1.4.200").apply {24 withExposedPorts(5432)25 withStartupTimeout(Duration.ofSeconds(60))26 }27 }28 fun `should create a database client`() {29 val connectionFactory = TestcontainersR2DBCConnectionFactory(container)30 val initializer = ConnectionFactoryInitializer().apply {31 setConnectionFactory(connectionFactory)32 setDatabasePopulator(ResourceDatabasePopulator().apply {33 addScript(connectionFactory::class.java.classLoader.getResource("schema.sql"))34 })35 }36 initializer.afterPropertiesSet()37 val client = DatabaseClient.create(connectionFactory)38 client.execute("INSERT INTO person (id, name) VALUES (:id, :name)")39 .bind("id", 1)40 .bind("name", "Alice")41 .fetch()42 .rowsUpdated()43 .awaitRowsUpdated()44 client.execute("INSERT INTO person (id, name) VALUES (:id, :name)")45 .bind("id", 2)46 .bind("name", "Bob")47 .fetch()

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TestcontainersR2DBCConnectionFactory

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1import org.testcontainers.containers.PostgreSQLContainer2import org.testcontainers.r2dbc.TestcontainersR2DBCConnectionFactory3import io.r2dbc.spi.Connection4import io.r2dbc.spi.ConnectionFactory5def postgres = new PostgreSQLContainer()6postgres.start()7def connectionFactory = new TestcontainersR2DBCConnectionFactory(postgres)8def connection = connectionFactory.create().block()9connection.createStatement("select 1").execute().map { row -> row.get(0) }.blockFirst()

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