Add CourseServiceImplTest

src/main/java/id/ac/ui/cs/advprog/tutorial0/service/CourseServiceImpl.java

@@ -38,4 +38,5 @@ public class CourseServiceImpl implements CourseService {
         courseIterator.forEachRemaining(allCourses::add);
         return allCourses;
     }
+
 }

src/test/java/id/ac/ui/cs/advprog/tutorial0/service/CourseServiceImplTest.java

+package id.ac.ui.cs.advprog.tutorial0.service;
+
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+class CourseServiceImplTest {
+
+    @Test
+    void create() {
+    }
+
+    @Test
+    void findAll() {
+    }
+}
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