added ApplicationTests

backend/src/test/java/com/vaessl/app/ApplicationTests.java

@@ -9,8 +9,10 @@ import org.junit.jupiter.api.Test;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.boot.test.context.SpringBootTest;
 import org.springframework.test.context.ActiveProfiles;
+import org.springframework.context.ApplicationContext;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
 
 @SpringBootTest
 @ActiveProfiles("test")
@@ -19,10 +21,23 @@ class ApplicationTests {
     @Autowired
     private DataSource dataSource;
 
+    @Autowired
+    private ApplicationContext context;
+
+    @Test
+    void contextLoads() {
+    }
+
     @Test
     void connectionToTestDbWorks() throws SQLException {
         try (Connection connection = dataSource.getConnection()) {
             assertThat(connection.getMetaData().getURL()).contains("vaessl_test");
         }
     }
+
+    @Test
+    void main() {
+        Application.main(new String[] {});
+        assertNotNull(context, "The Spring context should not be null");
+    }
 }