introduce test bootstrapping

tests/bootstrap.php

@@ -0,0 +1,31 @@
+<?php
+
+use Illuminate\Contracts\Console\Kernel;
+
+require_once __DIR__.'/../vendor/autoload.php';
+
+/*
+|--------------------------------------------------------------------------
+| Bootstrap the testing environment
+|--------------------------------------------------------------------------
+|
+| You have the option to specify console commands that will execute before your
+| test suite is run. Caching config, routes, & events may improve performance
+| and bring your testing environment closer to production.
+|
+*/
+
+$commands = [
+    'config:cache',
+    'event:cache',
+    // 'route:cache',
+];
+
+$app = require __DIR__.'/../bootstrap/app.php';
+
+$console = tap($app->make(Kernel::class))->bootstrap();
+
+foreach ($commands as $command) {
+    $console->call($command);
+}
+