[8.x] Add implicit binding test

composer.json

@@ -84,7 +84,7 @@
         "guzzlehttp/guzzle": "^6.5.5|^7.0.1",
         "league/flysystem-cached-adapter": "^1.0",
         "mockery/mockery": "^1.4.2",
-        "orchestra/testbench-core": "^6.5",
+        "orchestra/testbench-core": "^6.8",
         "pda/pheanstalk": "^4.0",
         "phpunit/phpunit": "^8.5.8|^9.3.3",
         "predis/predis": "^1.1.1",

tests/Integration/Routing/ImplicitRouteBindingTest.php

@@ -0,0 +1,95 @@
+<?php
+
+namespace Illuminate\Tests\Integration\Routing;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+use Orchestra\Testbench\Concerns\InteractsWithPublishedFiles;
+use Orchestra\Testbench\TestCase;
+
+class ImplicitRouteBindingTest extends TestCase
+{
+    use InteractsWithPublishedFiles;
+
+    protected $files = [
+        'routes/testbench.php',
+    ];
+
+    /**
+     * Teardown the test environment.
+     */
+    protected function tearDown(): void
+    {
+        $this->tearDownInteractsWithPublishedFiles();
+
+        parent::tearDown();
+    }
+
+    protected function defineEnvironment($app)
+    {
+        $app['config']->set('app.debug', 'true');
+
+        $app['config']->set('database.default', 'testbench');
+
+        $app['config']->set('database.connections.testbench', [
+            'driver' => 'sqlite',
+            'database' => ':memory:',
+            'prefix' => '',
+        ]);
+    }
+
+    protected function defineDatabaseMigrations(): void
+    {
+        Schema::create('users', function (Blueprint $table) {
+            $table->increments('id');
+            $table->string('name');
+            $table->timestamps();
+        });
+
+        $this->beforeApplicationDestroyed(function () {
+            Schema::dropIfExists('users');
+        });
+    }
+
+    public function testWithRouteCachingEnabled()
+    {
+        $route = <<<PHP
+<?php
+
+use Illuminate\Tests\Integration\Routing\ImplicitBindingModel;
+
+Route::post('/user/{user}', function (ImplicitBindingModel \$user) {
+    return \$user;
+})->middleware('web');
+PHP;
+
+        file_put_contents(base_path('routes/testbench.php'), $route);
+
+        $this->artisan('route:cache')->run();
+
+        $this->reloadApplication();
+
+        $this->assertFilenameExists('bootstrap/cache/routes-v7.php');
+
+        $this->requireApplicationCachedRoutes();
+
+        $user = ImplicitBindingModel::create(['name' => 'Dries']);
+
+        $response = $this->postJson("/user/{$user->id}");
+
+        $response->assertJson([
+            'id' => $user->id,
+            'name' => $user->name,
+        ]);
+
+        $this->artisan('route:clear')->run();
+    }
+}
+
+class ImplicitBindingModel extends Model
+{
+    public $table = 'users';
+
+    protected $fillable = ['name'];
+}