Add basic Testcontainers test setup

build.gradle.kts

@@ -50,6 +50,8 @@ dependencies {
     providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
     testImplementation("org.springframework.boot:spring-boot-starter-test")
     testImplementation("io.projectreactor:reactor-test")
+    testImplementation("org.testcontainers:junit-jupiter")
+    testImplementation("org.testcontainers:postgresql")
 }
 
 tasks.withType<KotlinCompile> {

src/test/kotlin/dev/dnpm/etl/processor/AbstractTestcontainerTest.kt

@@ -0,0 +1,45 @@
+/*
+ * This file is part of ETL-Processor
+ *
+ * Copyright (c) 2023  Comprehensive Cancer Center Mainfranken, Datenintegrationszentrum Philipps-Universität Marburg and Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package dev.dnpm.etl.processor
+
+import org.springframework.test.context.DynamicPropertyRegistry
+import org.springframework.test.context.DynamicPropertySource
+import org.testcontainers.containers.PostgreSQLContainer
+import org.testcontainers.junit.jupiter.Container
+
+abstract class AbstractTestcontainerTest {
+
+    companion object {
+        @Container
+        val dbContainer = PostgreSQLContainer("postgres:10-alpine")
+            .withDatabaseName("test")
+            .withUsername("test")
+            .withPassword("test") ?: throw RuntimeException("Failed to create testcontainer!")
+
+        @DynamicPropertySource
+        @JvmStatic
+        fun registerDynamicProperties(registry: DynamicPropertyRegistry) {
+            registry.add("spring.datasource.url", dbContainer::getJdbcUrl)
+            registry.add("spring.datasource.username", dbContainer::getUsername)
+            registry.add("spring.datasource.password", dbContainer::getPassword)
+        }
+    }
+
+}

src/test/kotlin/dev/dnpm/etl/processor/BwhcMapperApplicationTests.kt

@@ -0,0 +1,37 @@
+/*
+ * This file is part of ETL-Processor
+ *
+ * Copyright (c) 2023  Comprehensive Cancer Center Mainfranken, Datenintegrationszentrum Philipps-Universität Marburg and Contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package dev.dnpm.etl.processor
+
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.extension.ExtendWith
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.test.context.junit.jupiter.SpringExtension
+import org.testcontainers.junit.jupiter.Testcontainers
+
+@Testcontainers
+@ExtendWith(SpringExtension::class)
+@SpringBootTest
+class BwhcMapperApplicationTests : AbstractTestcontainerTest() {
+
+    @Test
+    fun contextLoads() {
+    }
+
+}