test: configure H2 database for tests

Author: imDMK

build.gradle.kts

@@ -32,6 +32,7 @@ dependencies {
     testImplementation("org.springframework.boot:spring-boot-starter-data-jpa-test")
     testImplementation("org.springframework.boot:spring-boot-starter-flyway-test")
     testImplementation("org.springframework.boot:spring-boot-starter-webmvc-test")
+    testImplementation("com.h2database:h2")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 

src/test/java/com/github/imdmk/nbpcurrencyconverter/NbpCurrencyConverterApplicationTests.java

@@ -1,13 +1,9 @@
 package com.github.imdmk.nbpcurrencyconverter;
 
-import org.junit.jupiter.api.Test;
 import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ActiveProfiles;
 
 @SpringBootTest
+@ActiveProfiles("test")
 class NbpCurrencyConverterApplicationTests {
-
-    @Test
-    void contextLoads() {
-    }
-
 }

src/test/resources/application-test.properties

@@ -0,0 +1,8 @@
+spring.datasource.url=jdbc:h2:mem:testdb
+spring.datasource.driver-class-name=org.h2.Driver
+spring.datasource.username=sa
+spring.datasource.password=
+
+spring.jpa.database-platform=org.hibernate.dialect.H2Dialect
+
+spring.flyway.enabled=false