feat: test containers

pom.xml

@@ -70,6 +70,12 @@
             <artifactId>gson</artifactId>
             <version>2.10.1</version>
         </dependency>
+        <dependency>
+            <groupId>org.testcontainers</groupId>
+            <artifactId>postgresql</artifactId>
+            <version>1.18.3</version>
+            <scope>test</scope>
+        </dependency>
     </dependencies>
 
     <build>

src/test/kotlin/dev/farneser/tasktracker/scheduler/config/TestContainerConfig.java

@@ -0,0 +1,39 @@
+package dev.farneser.tasktracker.scheduler.config;
+
+import com.github.dockerjava.api.model.ExposedPort;
+import com.github.dockerjava.api.model.HostConfig;
+import com.github.dockerjava.api.model.PortBinding;
+import com.github.dockerjava.api.model.Ports;
+import jakarta.annotation.PreDestroy;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.testcontainers.containers.PostgreSQLContainer;
+
+import javax.sql.DataSource;
+
+@Configuration
+public class TestContainerConfig {
+    @Bean
+    public DataSource dataSource() {
+        var pgContainer = new PostgreSQLContainer<>("postgres:latest")
+                .withDatabaseName("task-tracker")
+                .withUsername("postgres")
+                .withPassword("postgres")
+                .withExposedPorts(5432)
+                .withCreateContainerCmdModifier(cmd -> cmd.withHostConfig(
+                        new HostConfig().withPortBindings(new PortBinding(Ports.Binding.bindPort(15432), new ExposedPort(5432)))));
+
+        pgContainer.start();
+
+        var dataSource = new DriverManagerDataSource();
+
+        dataSource.setDriverClassName("org.postgresql.Driver");
+        dataSource.setUrl(pgContainer.getJdbcUrl());
+        dataSource.setUsername(pgContainer.getUsername());
+        dataSource.setPassword(pgContainer.getPassword());
+
+        return dataSource;
+    }
+}
+

src/test/resources/application.properties

@@ -1,17 +1,7 @@
-# postgres
-spring.datasource.url=jdbc:postgresql://localhost:5432/task-tracker
-spring.datasource.username=postgres
-spring.datasource.password=postgres
-spring.datasource.driver-class-name=org.postgresql.Driver
 # jpa
 spring.jpa.show-sql=true
 spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
 spring.jpa.hibernate.ddl-auto=none
-# rabbitmq
-spring.rabbitmq.host=localhost
-spring.rabbitmq.port=5672
-spring.rabbitmq.username=rabbitmq
-spring.rabbitmq.password=rabbitmq
 # scheduler
 # every minute
 scheduler.cron=0 * * * * *