Test verifying project type validation on author idea selection

core/src/test/java/se/su/dsv/scipro/match/IdeaServiceImplTest.java

@@ -401,6 +401,17 @@ public class IdeaServiceImplTest {
         assertEquals(expected, ideaService.countAuthorsByApplicationPeriod(applicationPeriod, params));
     }
 
+    @Test
+    public void wrong_type_for_author() {
+        when(applicationPeriodService.getTypesForStudent(applicationPeriod, student)).thenReturn(List.of(master));
+
+        assertPair(
+            false,
+            "The idea is the wrong level for you, please pick another one.",
+            ideaService.validateStudentAcceptance(createBachelorIdea(Idea.Status.UNMATCHED), student, coAuthor, applicationPeriod)
+        );
+    }
+
     private Idea mockInactiveIdea() {
         Idea idea = new Idea();
         Match match = new Match();