Created test GroupServiceTest.java. It contains createAndDeleteGroup

Signed-off-by: Marcin Woźniak <y0rune@aol.com>

buisnesslogic/src/test/java/com/plannaplan/services/GroupServiceTest.java

@@ -0,0 +1,37 @@
+package com.plannaplan.services;
+
+import static org.junit.Assert.assertTrue;
+
+import com.plannaplan.entities.Groups;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringRunner;
+
+@RunWith(SpringRunner.class)
+@SpringBootTest
+@ContextConfiguration
+public class GroupServiceTest {
+
+    @Autowired
+    private GroupService groupService;
+
+    @Test
+    public void createAndDeleteGroup() {
+        Groups group;
+        int startAmmount = this.groupService.getGroupsAmmount();
+
+        //Create group
+        group = new Groups();
+        group.setRoom("A1");
+        groupService.save(group);
+        assertTrue(this.groupService.getGroupsAmmount() > startAmmount);
+
+        // Delete course
+        groupService.delete(group);
+        assertTrue(this.groupService.getGroupsAmmount() == startAmmount);
+    }
+}