fix failing tests: ping check config and whitelist cache race (#55)

- check_results_controller_test: add required config host for ping check
- brute_force_protection_test: set async: false to avoid ETS cache race

Reviewed-on: graham/towerops-web#55

test/towerops_web/controllers/api/v1/check_results_controller_test.exs

@@ -54,7 +54,8 @@ defmodule ToweropsWeb.Api.V1.CheckResultsControllerTest do
           enabled: true,
           interval_seconds: 60,
           device_id: device.id,
-          organization_id: organization.id
+          organization_id: organization.id,
+          config: %{"host" => "10.0.0.1"}
         })
 
       conn = get(conn, ~p"/api/v1/devices/#{device.id}/checks")

test/towerops_web/plugs/brute_force_protection_test.exs

@@ -1,5 +1,5 @@
 defmodule ToweropsWeb.Plugs.BruteForceProtectionTest do
-  use Towerops.DataCase, async: true
+  use Towerops.DataCase, async: false
 
   import Plug.Conn