Prevent the removal of a quest owner from a group, take 2 (#12695)

* add cannotRemoveQuestLeader string

* throw error when member is quest leader

* add the new apidoc error

* change i18n key name

* fix apidoc formatting and change key in throw()

* add test for preventing removing quest owner

* patch(groups): change error codes

test/api/v3/integration/groups/POST-groups_id_removeMember.test.js

@@ -251,6 +251,29 @@ describe('POST /groups/:groupId/removeMember/:memberId', () => {
       expect(party.quest.members[partyMember._id]).to.not.exist;
     });
 
+    it('prevents user from being removed if they are the quest owner', async () => {
+      const petQuest = 'whale';
+      await partyMember.update({
+        [`items.quests.${petQuest}`]: 1,
+      });
+
+      await partyMember.post(`/groups/${party._id}/quests/invite/${petQuest}`);
+      await partyLeader.post(`/groups/${party._id}/quests/accept`);
+
+      await party.sync();
+
+      expect(party.quest.members[partyLeader._id]).to.be.true;
+      expect(party.quest.members[partyMember._id]).to.be.true;
+
+      await party.sync();
+
+      expect(leader.post(`/groups/${party._id}/removeMember/${partyMember._id}`))
+        .to.eventually.be.rejected.and.eql({
+          code: 401,
+          text: t('cannotRemoveQuestOwner'),
+        });
+    });
+
     it('sends email to user with rescinded invite', async () => {
       await partyLeader.post(`/groups/${party._id}/removeMember/${partyInvitedUser._id}`);