test: Add H2 database for testing and update config

.gitea/workflows/qs.yml

@@ -9,20 +9,6 @@ jobs:
     runs-on: "ubuntu-latest"
     container:
       image: "cimg/openjdk:21.0-node"
-    services:
-      postgres:
-        image: postgres:16.4
-        env:
-          POSTGRES_DB: lf8_starter_db
-          POSTGRES_USER: lf8_starter
-          POSTGRES_PASSWORD: secret
-        ports:
-          - 5432:5432
-        options: >-
-          --health-cmd="pg_isready -U lf8_starter"
-          --health-interval=10s
-          --health-timeout=5s
-          --health-retries=3
     steps:
       - name: "Checkout"
         uses: actions/checkout@v3

build.gradle.kts

@@ -7,6 +7,13 @@ plugins {
 group = "de.szut"
 version = "0.0.1-SNAPSHOT"
 
+tasks.test {
+    useJUnitPlatform()
+
+    // Activate the 'test' profile for Spring during tests
+    systemProperty("spring.profiles.active", "test")
+}
+
 java {
     toolchain {
         languageVersion = JavaLanguageVersion.of(21)
@@ -35,6 +42,7 @@ dependencies {
     implementation("org.springframework.boot:spring-boot-starter-oauth2-client:3.3.4")
     runtimeOnly("org.postgresql:postgresql")
     implementation("org.springdoc:springdoc-openapi-starter-webmvc-ui:2.6.0")
+    testImplementation("com.h2database:h2")
 }
 
 tasks.withType<Test> {

src/main/resources/application-test.properties

@@ -0,0 +1,5 @@
+spring.datasource.url=jdbc:h2:mem:testdb;DB_CLOSE_DELAY=-1
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect

src/test/java/de/szut/lf8_starter/Lf8StarterApplicationTests.java

@@ -2,6 +2,7 @@ package de.szut.lf8_starter;
 
 import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.TestPropertySource;
 
 @SpringBootTest
 class Lf8StarterApplicationTests {