diff --git a/.vscode/settings.json b/.vscode/settings.json
index a482329..efdb6c2 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -57,4 +57,5 @@
     },
     "window.zoomLevel": 1,
     "editor.fontVariations": false,
+    "phpunit.phpunit": "vendor/bin/pest",
 }
\ No newline at end of file
diff --git a/src/Gateways/Asaas/AsaasGateway.php b/src/Gateways/Asaas/AsaasGateway.php
index 4c2ac58..ad813ae 100644
--- a/src/Gateways/Asaas/AsaasGateway.php
+++ b/src/Gateways/Asaas/AsaasGateway.php
@@ -2,11 +2,11 @@
 
 namespace PHPay\Asaas;
 
-use Asaas\Interface\AsaasGatewayInterface;
-use Asaas\Resources\Charge\Charge;
-use Asaas\Resources\Customer\Customer;
-use Asaas\Resources\Webhook\Webhook;
 use GuzzleHttp\Client;
+use PHPay\Asaas\Interface\AsaasGatewayInterface;
+use PHPay\Asaas\Resources\Charge\Charge;
+use PHPay\Asaas\Resources\Customer\Customer;
+use PHPay\Asaas\Resources\Webhook\Webhook;
 
 class AsaasGateway implements AsaasGatewayInterface
 {
diff --git a/src/Gateways/Asaas/Interface/AsaasGatewayInterface.php b/src/Gateways/Asaas/Interface/AsaasGatewayInterface.php
index 72fcb95..75a7fc2 100644
--- a/src/Gateways/Asaas/Interface/AsaasGatewayInterface.php
+++ b/src/Gateways/Asaas/Interface/AsaasGatewayInterface.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace Asaas\Interface;
+namespace PHPay\Asaas\Interface;
 
-use Asaas\Resources\Charge\Charge;
-use Asaas\Resources\Customer\Customer;
-use Asaas\Resources\Webhook\Webhook;
+use PHPay\Asaas\Resources\Charge\Charge;
+use PHPay\Asaas\Resources\Customer\Customer;
+use PHPay\Asaas\Resources\Webhook\Webhook;
 use PHPay\Contracts\GatewayInterface;
 
 interface AsaasGatewayInterface extends GatewayInterface
diff --git a/src/Gateways/Asaas/Requests/AsaasChargeRequest.php b/src/Gateways/Asaas/Requests/AsaasChargeRequest.php
index 1b4d6fe..8683019 100644
--- a/src/Gateways/Asaas/Requests/AsaasChargeRequest.php
+++ b/src/Gateways/Asaas/Requests/AsaasChargeRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Requests;
+namespace PHPay\Asaas\Requests;
 
 use PHPay\Gateways\Asaas\Enums\{BillingTypeEnum};
 
diff --git a/src/Gateways/Asaas/Requests/AsaasCustomerRequest.php b/src/Gateways/Asaas/Requests/AsaasCustomerRequest.php
index 3247c75..0b1872b 100644
--- a/src/Gateways/Asaas/Requests/AsaasCustomerRequest.php
+++ b/src/Gateways/Asaas/Requests/AsaasCustomerRequest.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Requests;
+namespace PHPay\Asaas\Requests;
 
 class AsaasCustomerRequest
 {
diff --git a/src/Gateways/Asaas/Resources/Charge/Charge.php b/src/Gateways/Asaas/Resources/Charge/Charge.php
index b7b522f..ffc8ed8 100644
--- a/src/Gateways/Asaas/Resources/Charge/Charge.php
+++ b/src/Gateways/Asaas/Resources/Charge/Charge.php
@@ -1,12 +1,12 @@
 <?php
 
-namespace Asaas\Resources\Charge;
+namespace PHPay\Asaas\Resources\Charge;
 
-use Asaas\Requests\AsaasChargeRequest;
-use Asaas\Resources\Charge\Interface\ChargeInterface;
-use Asaas\Resources\Customer\Customer;
-use Asaas\Traits\HasAsaasClient;
 use GuzzleHttp\Client;
+use PHPay\Asaas\Requests\AsaasChargeRequest;
+use PHPay\Asaas\Resources\Charge\Interface\ChargeInterface;
+use PHPay\Asaas\Resources\Customer\Customer;
+use PHPay\Asaas\Traits\HasAsaasClient;
 
 class Charge implements ChargeInterface
 {
diff --git a/src/Gateways/Asaas/Resources/Charge/Interface/ChargeInterface.php b/src/Gateways/Asaas/Resources/Charge/Interface/ChargeInterface.php
index c24de77..c4f8548 100644
--- a/src/Gateways/Asaas/Resources/Charge/Interface/ChargeInterface.php
+++ b/src/Gateways/Asaas/Resources/Charge/Interface/ChargeInterface.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Resources\Charge\Interface;
+namespace PHPay\Asaas\Resources\Charge\Interface;
 
 interface ChargeInterface
 {
diff --git a/src/Gateways/Asaas/Resources/Customer/Customer.php b/src/Gateways/Asaas/Resources/Customer/Customer.php
index 5c2ba88..fcf8253 100644
--- a/src/Gateways/Asaas/Resources/Customer/Customer.php
+++ b/src/Gateways/Asaas/Resources/Customer/Customer.php
@@ -1,11 +1,11 @@
 <?php
 
-namespace Asaas\Resources\Customer;
+namespace PHPay\Asaas\Resources\Customer;
 
-use Asaas\Requests\AsaasCustomerRequest;
-use Asaas\Resources\Customer\Interface\CustomerInterface;
-use Asaas\Traits\HasAsaasClient;
 use GuzzleHttp\Client;
+use PHPay\Asaas\Requests\AsaasCustomerRequest;
+use PHPay\Asaas\Resources\Customer\Interface\CustomerInterface;
+use PHPay\Asaas\Traits\HasAsaasClient;
 
 class Customer implements CustomerInterface
 {
diff --git a/src/Gateways/Asaas/Resources/Customer/Interface/CustomerInterface.php b/src/Gateways/Asaas/Resources/Customer/Interface/CustomerInterface.php
index 1e7a41c..ac2b215 100644
--- a/src/Gateways/Asaas/Resources/Customer/Interface/CustomerInterface.php
+++ b/src/Gateways/Asaas/Resources/Customer/Interface/CustomerInterface.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Resources\Customer\Interface;
+namespace PHPay\Asaas\Resources\Customer\Interface;
 
 interface CustomerInterface
 {
diff --git a/src/Gateways/Asaas/Resources/Webhook/Interface/WebhookInterface.php b/src/Gateways/Asaas/Resources/Webhook/Interface/WebhookInterface.php
index 63a9f34..65386d9 100644
--- a/src/Gateways/Asaas/Resources/Webhook/Interface/WebhookInterface.php
+++ b/src/Gateways/Asaas/Resources/Webhook/Interface/WebhookInterface.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Resources\Webhook\Interface;
+namespace PHPay\Asaas\Resources\Webhook\Interface;
 
 interface WebhookInterface
 {
diff --git a/src/Gateways/Asaas/Resources/Webhook/Webhook.php b/src/Gateways/Asaas/Resources/Webhook/Webhook.php
index fe62505..1c93eff 100644
--- a/src/Gateways/Asaas/Resources/Webhook/Webhook.php
+++ b/src/Gateways/Asaas/Resources/Webhook/Webhook.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace Asaas\Resources\Webhook;
+namespace PHPay\Asaas\Resources\Webhook;
 
-use Asaas\Resources\Webhook\Interface\WebhookInterface;
-use Asaas\Traits\HasAsaasClient;
 use GuzzleHttp\Client;
+use PHPay\Asaas\Resources\Webhook\Interface\WebhookInterface;
+use PHPay\Asaas\Traits\HasAsaasClient;
 
 class Webhook implements WebhookInterface
 {
diff --git a/src/Gateways/Asaas/Traits/HasAsaasClient.php b/src/Gateways/Asaas/Traits/HasAsaasClient.php
index 593f992..3e1f50e 100644
--- a/src/Gateways/Asaas/Traits/HasAsaasClient.php
+++ b/src/Gateways/Asaas/Traits/HasAsaasClient.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace Asaas\Traits;
+namespace PHPay\Asaas\Traits;
 
 use GuzzleHttp\Client;
 
diff --git a/tests/Feature/PHPayTest.php b/tests/Feature/PHPayTest.php
new file mode 100644
index 0000000..163010f
--- /dev/null
+++ b/tests/Feature/PHPayTest.php
@@ -0,0 +1,14 @@
+<?php
+
+use PHPay\Asaas\AsaasGateway;
+use PHPay\Contracts\GatewayInterface;
+use PHPay\PHPay;
+
+$phpay = new PHPay(new AsaasGateway('token'));
+
+it('test phpay suite', function () use ($phpay) {
+    expect($phpay)
+        ->toBeInstanceOf(PHPay::class)
+        ->toHaveProperty('gateway')
+        ->toBeInstanceOf(GatewayInterface::class);
+});
diff --git a/tests/Unit/ExampleTest.php b/tests/Unit/ExampleTest.php
new file mode 100644
index 0000000..b3d9bbc
--- /dev/null
+++ b/tests/Unit/ExampleTest.php
@@ -0,0 +1 @@
+<?php