feat/Test data is added to database when it is not present

src/main/resources/application.yml

@@ -15,8 +15,9 @@ spring:
     defer-datasource-initialization: true
   sql:
     init:
-      mode: always
+      mode: always  
       continue-on-error: true
+      data-locations: classpath:data.sql
   mail:
     host: smtp.gmail.com
     port: 587