Test a job is dispatchable

app/Jobs/ImageUploadAndResizingJob.php

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+<?php
+
+namespace App\Jobs;
+
+use Illuminate\Bus\Queueable;
+use Illuminate\Contracts\Queue\ShouldBeUnique;
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Queue\InteractsWithQueue;
+use Illuminate\Queue\SerializesModels;
+
+class ImageUploadAndResizingJob implements ShouldQueue
+{
+    use Dispatchable, InteractsWithQueue, Queueable, SerializesModels;
+
+    /**
+     * Create a new job instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Execute the job.
+     *
+     * @return void
+     */
+    public function handle()
+    {
+        //
+    }
+}

tests/Feature/JobTest.php

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+<?php
+
+namespace Tests\Feature;
+
+use App\Jobs\ImageUploadAndResizingJob;
+use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Foundation\Testing\WithFaker;
+use Tests\TestCase;
+
+class JobTest extends TestCase
+{
+    /** @test */
+    public function a_job_is_dispatchable()
+    {
+        $job = new \ReflectionClass(ImageUploadAndResizingJob::class);
+
+        $this->assertTrue(in_array(Dispatchable::class, $job->getTraitNames()));
+
+        $this->assertTrue(method_exists(
+            app(ImageUploadAndResizingJob::class),
+            'handle'
+        ));
+    }
+}