joemasilotti

Turbolinks + Turbo Native - Generic form handling with Stimulus

These three files show how to handle forms with (legacy) Turbolinks in your Rails app with the new Turbo Native adapters.

1. The Rails controller renders the form partial with an :unprocessable_entity status when encountering a form validation error
2. The form is submitted via AJAX (local: false or remote: true depending on your Rails version)
3. This is caught via the ajax:error->form#onError Stimulus action
4. The Stimulus controller replaces the form's contents with the server-sided rendered HTML
5. The native app is informed when the redirect occurs on a succesful submission

joemasilotti

// Enum with manual parsing.
enum ScriptMessage {
    case registerForRemoteNotifications
    case showBackButton(url: URL)
    case signOutCompleted

    init?(body: [String: Any]) {
        switch body["name"] as? String {
        case "registerForRemoteNotifications":
            self = .registerForRemoteNotifications

joemasilotti

class TestVisitDelegate: VisitDelegate {
    func visitDidStart() {
        record(#function)
    }

    func visitDidComplete() {
        record(#function)
    }

    // MARK: Testing verification helpers.

joemasilotti

UI tests without UI Testing experiment

This gist is a small experiment to see if there's an "in-between" for testing iOS applications. More feature-level than XCTest but not as heavy handed (or slow and brittle) as UI Testing.

The general idea is to provide an API similar to UI Testing but be able to spin up any controller on the fly. By putting the controller inside of a window the test behaves a bit more like the real app.

Currently, only two methods are explored: finding labels and buttons. An obvious omission is searching for the view recursively. A perhaps less obvious omission is still being able to tap disabled buttons.

This extends on my thoughts in a recent blog, Testing the UI without UI Testing in Swift.

joemasilotti

import SwiftUI

struct ContentView: View {
    @ObservedObject private var signalStore = SignalStore()

    var body: some View {
        VStack {
            List(signalStore.all) { signal in
                SignalView(signal: self.signalStore.binded(signal: signal))
            }

joemasilotti

This gist accompanies a blog post on Masilotti.com, How to manage multiple sheets in SwiftUI.

joemasilotti

protocol Injectable: class {
  var router: Routable { get }
}

class Injector: Injectable {
  lazy var router: Routable { Router() }()
}

protocol Routable {
  func route(url: String)

joemasilotti

# `Bootstrap4BreadcrumbsBuilder `is a Bootstrap 4 (alpha6) compatible breadcrumb
# builder. It is designed to work with the `breadcrumbs_on_rails` gem as a
# drop-in builder replacement.
#
# Bootstrap4BreadcrumbsBuilder accepts a limited set of options:
#
#   | option           | default | description                                |
#   | ---------------- | ------- | ------------------------------------------ |
#   | `:container_tag` | `:ol`   | What tag to use for the list container     |
#   | `:tag`           | `:li`   | What HTML tag to use for breadcrumb items  |

joemasilotti

Resetting NSUserDefaults in UI Testing

1. Add "UI-Testing" to launchArguments before launching the app under test
2. On launch, check for the argument in AppDelegate.swift
3. If it exists remove everything for the app's domain from NSUserDefaults

joemasilotti

.