Bugfix challenge tags to normal tags after a challenge has ended/deleted (#12341)

* Fix bug in challenge tags not converted to normal tags after challenge ended/deleted

* Added test cases to test bug fix

* Set tag.challenge from String to Boolean in tag model schema

* Update existing test with tag challenge set to boolean instead of string

* Added migration file for converting tag challenge field from string to bool

* Implement suggestions from ilnt

* Use mongoose instead of Mock in migration

* Change from update to bulkwrite

* update users individually

Co-authored-by: Matteo Pagliazzi <matteopagliazzi@gmail.com>

website/client/tests/unit/components/tasks/user.spec.js

@@ -0,0 +1,65 @@
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import User from '@/components/tasks/user.vue';
+import Store from '@/libs/store';
+
+const localVue = createLocalVue();
+localVue.use(Store);
+
+describe('Tasks User', () => {
+  describe('Computed Properties', () => {
+    it('should render a challenge tag under challenge header in tag filter popup when the challenge is active', () => {
+      const activeChallengeTag = {
+        id: '1',
+        name: 'Challenge1',
+        challenge: true,
+      };
+      const state = {
+        user: {
+          data: {
+            tags: [activeChallengeTag],
+          },
+        },
+      };
+      const getters = {};
+      const store = new Store({ state, getters });
+      const wrapper = shallowMount(User, {
+        store,
+        localVue,
+      });
+
+      const computedTagsByType = wrapper.vm.tagsByType;
+
+      expect(computedTagsByType.challenges.tags.length).to.equal(1);
+      expect(computedTagsByType.challenges.tags[0].id).to.equal(activeChallengeTag.id);
+      expect(computedTagsByType.challenges.tags[0].name).to.equal(activeChallengeTag.name);
+    });
+
+    it('should render a challenge tag under normal tag header in tag filter popup when the challenge is no longer active', () => {
+      const inactiveChallengeTag = {
+        id: '1',
+        name: 'Challenge1',
+        challenge: false,
+      };
+      const state = {
+        user: {
+          data: {
+            tags: [inactiveChallengeTag],
+          },
+        },
+      };
+      const getters = {};
+      const store = new Store({ state, getters });
+      const wrapper = shallowMount(User, {
+        store,
+        localVue,
+      });
+
+      const computedTagsByType = wrapper.vm.tagsByType;
+
+      expect(computedTagsByType.challenges.tags.length).to.equal(0);
+      expect(computedTagsByType.user.tags.length).to.equal(1);
+      expect(computedTagsByType.user.tags[0].id).to.equal(inactiveChallengeTag.id);
+      expect(computedTagsByType.user.tags[0].name).to.equal(inactiveChallengeTag.name);
+    });
+  });
+});