     let eventJSON1 = resAfter.json?.array?.first
     let eventJSON2 = resBefore.json?.array?.first
     
-    checkEventHasRequiredFields(json: eventJSON1)
-    checkEventHasRequiredFields(json: eventJSON2)
+    assertEventHasRequiredFields(json: eventJSON1)
+    assertEventHasRequiredFields(json: eventJSON2)
   }
   
   func testThatIndexEventsReturnsJSONArrayEventsHasAllExpectedFields() throws {

    let request = Request.makeTest(method: .get)
    let res = try eventContoller.show(request, event: event).makeResponse()
    
    checkEventHasRequiredFields(json: res.json)
  }
  
  func testThatShowEventReturnsJSONWithExpectedFields() throws {

    XCTAssertNotNil(cityJSON?["city_name"])
  }
  
  fileprivate func assertEventHasExpectedFields(json: JSON?, event: App.Event) throws {
    guard let place = try event.place() else {
      XCTFail()
      return
