đã tạo được test case của createUser

vendor/laravel/dusk/src/Concerns/InteractsWithKeyboard.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Laravel\Dusk\Concerns;
+
+use Facebook\WebDriver\WebDriverKeys;
+use Illuminate\Support\Str;
+use Laravel\Dusk\Keyboard;
+
+trait InteractsWithKeyboard
+{
+    /**
+     * Execute the given callback while interacting with the keyboard.
+     *
+     * @param  callable(\Laravel\Dusk\Keyboard):void  $callback
+     * @return $this
+     */
+    public function withKeyboard(callable $callback)
+    {
+        return tap($this, fn () => $callback(new Keyboard($this)));
+    }
+
+    /**
+     * Parse the keys before sending to the keyboard.
+     *
+     * @param  array  $keys
+     * @return array
+     */
+    protected function parseKeys($keys)
+    {
+        return collect($keys)->map(function ($key) {
+            if (is_string($key) && Str::startsWith($key, '{') && Str::endsWith($key, '}')) {
+                $key = constant(WebDriverKeys::class.'::'.strtoupper(trim($key, '{}')));
+            }
+
+            if (is_array($key) && Str::startsWith($key[0], '{')) {
+                $key[0] = constant(WebDriverKeys::class.'::'.strtoupper(trim($key[0], '{}')));
+            }
+
+            return $key;
+        })->all();
+    }
+}