fix(api): getChallenges helper function (#51011)

Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>

api/src/utils/get-challenges.test.ts

@@ -0,0 +1,22 @@
+import { getChallenges } from './get-challenges';
+import { isObjectID } from './validation';
+
+describe('getChallenges', () => {
+  test('returns an array of challenges', () => {
+    const challenges = getChallenges();
+    expect(Array.isArray(challenges)).toBe(true);
+    expect(challenges.length).toBeGreaterThan(0);
+  });
+
+  test('challenge objects should contain challengeType and id', () => {
+    const challenges = getChallenges();
+
+    for (const challenge of challenges) {
+      expect(challenge).toHaveProperty('challengeType');
+      expect(typeof challenge?.challengeType).toBe('number');
+
+      expect(challenge).toHaveProperty('id');
+      expect(isObjectID(challenge?.id)).toBe(true);
+    }
+  });
+});

api/src/utils/get-challenges.ts

@@ -7,9 +7,7 @@ import curriculum from '../../../config/curriculum.json';
 import { SuperBlocks } from '../../../config/superblocks';
 
 type Curriculum = { [keyValue in SuperBlocks]?: CurriculumProps };
-type SuperBlockKeys = keyof Curriculum;
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
 interface Block {
   challenges: {
     id: string;
@@ -23,7 +21,7 @@ interface CurriculumProps {
 }
 
 export function getChallenges() {
-  const superBlockKeys = Object.keys(SuperBlocks) as SuperBlockKeys[];
+  const superBlockKeys = Object.values(SuperBlocks);
   const typedCurriculum: Curriculum = curriculum as Curriculum;
 
   return superBlockKeys