Acceptance test approach

src/ModelCommand.php

@@ -41,5 +41,6 @@ protected function generateConfig($name)
         File::put(config_path('smart.php'), $generator->print($models));
 
         $this->call('config:clear');
+        $this->info("Model {$name} generated.");
     }
 }

tests/ModelCommandTest.php

@@ -0,0 +1,42 @@
+<?php
+
+namespace Deiucanta\Smart\Tests;
+
+use Illuminate\Support\Facades\Artisan;
+use Illuminate\Support\Facades\File;
+
+class ModelCommandTest extends TestCase
+{
+    protected function setUp()
+    {
+        parent::setUp();
+
+        File::delete(app_path('Dumb.php'));
+    }
+
+    /** @test */
+    public function it_generates_a_model()
+    {
+        Artisan::call('smart:model', [
+            'name' => 'Dumb',
+        ]);
+
+        $expected = file_get_contents(__DIR__.'/Snapshots/Dumb.php');
+        $actual = file_get_contents(app_path('Dumb.php'));
+
+        $this->assertEquals($expected, $actual);
+        $this->assertEquals("Configuration cache cleared!\nModel Dumb generated.\n", Artisan::output());
+    }
+
+    /** @test */
+    public function it_throws_an_exception_when_model_already_exists()
+    {
+        File::put(app_path('Dumb.php'), 'somecontent');
+
+        Artisan::call('smart:model', [
+            'name' => 'Dumb',
+        ]);
+
+        $this->assertEquals("This model already exists.\n", Artisan::output());
+    }
+}

tests/Snapshots/model.txt → tests/Snapshots/Dumb.php

@@ -5,7 +5,7 @@
 use Deiucanta\Smart\Field;
 use Deiucanta\Smart\Model;
 
-class Product extends Model
+class Dumb extends Model
 {
     public function fields()
     {