fixed filter by id test

Author: Mackenzie Hicks

test/controllers/organization_membership_controller_test.exs

@@ -14,8 +14,7 @@ defmodule CodeCorps.OrganizationMembershipControllerTest do
     end
 
     test "filters resources by membership id", %{conn: conn} do
-      [membership_1, membership_2] = insert_pair(:organization_membership)
-      insert(:organization_membership)
+      [membership_1, membership_2 | _] = insert_list(3, :organization_membership)
 
       path = "organization-memberships/?filter[id]=#{membership_1.id},#{membership_2.id}"