[#12588] Add some unit test in recipient-type-name (#12626)

* [#12588] Add some unit test in recipient-type-name.pipe.spec.ts

* [#12588] Add some unit test in recipient-type-name.pipe.spec.ts

* [#12588] Add some unit test in recipient-type-name.pipe.spec.ts

---------

Co-authored-by: Cedric Ong <[email protected]>

src/web/app/components/question-submission-form/recipient-type-name.pipe.spec.ts

@@ -1,8 +1,53 @@
+import { FeedbackParticipantType } from '../../../types/api-output';
 import { RecipientTypeNamePipe } from './recipient-type-name.pipe';
 
 describe('RecipientTypeNamePipe', () => {
-  it('create an instance', () => {
-    const pipe: RecipientTypeNamePipe = new RecipientTypeNamePipe();
+  let pipe: RecipientTypeNamePipe;
+
+  beforeEach(() => {
+    pipe = new RecipientTypeNamePipe();
+  });
+
+  it('should create an instance', () => {
     expect(pipe).toBeTruthy();
   });
+
+  it('should return "Team" for recipientType TEAMS', () => {
+    expect(pipe.transform(FeedbackParticipantType.TEAMS,
+        FeedbackParticipantType.STUDENTS)).toEqual('Team');
+  });
+
+  it('should return "Student" for recipientType STUDENTS', () => {
+    expect(pipe.transform(FeedbackParticipantType.STUDENTS,
+        FeedbackParticipantType.STUDENTS)).toEqual('Student');
+  });
+
+  it('should return "Instructor" for recipientType INSTRUCTORS', () => {
+    expect(pipe.transform(FeedbackParticipantType.INSTRUCTORS,
+        FeedbackParticipantType.STUDENTS)).toEqual('Instructor');
+  });
+
+  it('should return "Student" for OWN_TEAM_MEMBERS with giverType STUDENTS', () => {
+    expect(pipe.transform(FeedbackParticipantType.OWN_TEAM_MEMBERS,
+        FeedbackParticipantType.STUDENTS)).toEqual('Student');
+  });
+
+  it('should return "Instructor" for OWN_TEAM_MEMBERS with giverType INSTRUCTORS', () => {
+    expect(pipe.transform(FeedbackParticipantType.OWN_TEAM_MEMBERS,
+        FeedbackParticipantType.INSTRUCTORS)).toEqual('Instructor');
+  });
+
+  it('should return "Student" for OWN_TEAM_MEMBERS with giverType TEAMS', () => {
+    expect(pipe.transform(FeedbackParticipantType.OWN_TEAM_MEMBERS,
+        FeedbackParticipantType.TEAMS)).toEqual('Student');
+  });
+
+  it('should return "Unknown" for OWN_TEAM_MEMBERS with unknown giverType', () => {
+    expect(pipe.transform(FeedbackParticipantType.OWN_TEAM_MEMBERS,
+        'UNKNOWN' as any)).toEqual('Unknown');
+  });
+
+  it('should return "Unknown" for unknown recipientType', () => {
+    expect(pipe.transform('UNKNOWN' as any, FeedbackParticipantType.STUDENTS)).toEqual('Unknown');
+  });
 });