Expose if using sandbox (#12)

* Expose whether using sandbox or not

* The actual mercado pago api doesn't have the concept of sandbox except for the client choosing either of the returned endpoints

src/Facades/MercadoPago.php

@@ -8,6 +8,7 @@
 /**
  * @method static \Puntodev\MercadoPago\MercadoPagoApi defaultClient()
  * @method static \Puntodev\MercadoPago\MercadoPagoApi withCredentials(string $clientId, string $clientSecret)
+ * @method static bool usingSandbox()
  *
  * @see \Puntodev\MercadoPago\MercadoPago
  */

src/MercadoPago.php

@@ -21,7 +21,6 @@ public function defaultClient(): MercadoPagoApi
         return new MercadoPagoApi(
             $clientId,
             $clientSecret,
-            $this->useSandbox
         );
     }
 
@@ -30,7 +29,10 @@ public function withCredentials(string $clientId, string $clientSecret): Mercado
         return new MercadoPagoApi(
             $clientId,
             $clientSecret,
-            $this->useSandbox
         );
     }
+
+    public function usingSandbox(): bool {
+        return $this->useSandbox;
+    }
 }

src/MercadoPagoApi.php

@@ -21,21 +21,16 @@ class MercadoPagoApi
     /** @var string */
     private string $host;
 
-    /** @var bool */
-    private bool $useSandbox;
-
     /**
      * MercadoPagoApi constructor.
      * @param string $apiClientKey
      * @param string $apiClientSecret
-     * @param bool $useSandbox
      */
-    public function __construct(string $apiClientKey, string $apiClientSecret, bool $useSandbox)
+    public function __construct(string $apiClientKey, string $apiClientSecret)
     {
         $this->apiClientKey = $apiClientKey;
         $this->apiClientSecret = $apiClientSecret;
         $this->host = 'api.mercadopago.com';
-        $this->useSandbox = $useSandbox;
     }
 
     /**

tests/MercadoPagoApiTest.php

@@ -5,7 +5,6 @@
 use Exception;
 use Illuminate\Foundation\Testing\WithFaker;
 use Illuminate\Http\Client\RequestException;
-use Illuminate\Support\Facades\Log;
 use Puntodev\MercadoPago\MercadoPagoApi;
 use Puntodev\MercadoPago\PaymentPreferenceBuilder;
 
@@ -21,15 +20,13 @@ public function setUp(): void
         $this->mercadoPagoApi = new MercadoPagoApi(
             config('mercadopago.client_id'),
             config('mercadopago.client_secret'),
-            config('mercadopago.use_sandbox')
         );
     }
 
     protected function getEnvironmentSetUp($app)
     {
         $app['config']->set('mercadopago.client_id', env('MERCADOPAGO_API_CLIENT_ID'));
         $app['config']->set('mercadopago.client_secret', env('MERCADOPAGO_API_CLIENT_SECRET'));
-        $app['config']->set('mercadopago.use_sandbox', env('SANDBOX_GATEWAYS'));
     }
 
     /**

tests/MercadoPagoTest.php

@@ -35,4 +35,15 @@ public function with_credentials()
 
         $this->assertInstanceOf(MercadoPagoApi::class, $client);
     }
+
+    /** @test */
+    public function using_sandbox()
+    {
+        /** @var MercadoPago $mercadoPago */
+        $mercadoPago = $this->app->make('mercadopago');
+
+        $usingSandbox = $mercadoPago->usingSandbox();
+
+        $this->assertTrue($usingSandbox);
+    }
 }