diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..6511b82
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,10 @@
+version: 2
+updates:
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    commit-message:
+      # Prefix all commit messages with "chore: "
+      prefix: 'chore'
+    schedule:
+      interval: 'monthly'
+    open-pull-requests-limit: 10
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
new file mode 100644
index 0000000..1b149a1
--- /dev/null
+++ b/.github/workflows/pull_request.yml
@@ -0,0 +1,52 @@
+name: Run lint and tests
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - ready_for_review
+  workflow_dispatch:
+
+env:
+  PHP_VERSION: 8.3
+  PHP_EXTENSIONS: mbstring
+  PHP_TOOLS: composer:v2, phpunit:11
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  run-tests:
+    if: ${{ !github.event.pull_request.draft }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install PHP ${{ env.PHP_VERSION }}
+        uses: shivammathur/setup-php@v2
+        with:
+          coverage: none
+          php-version: ${{ env.PHP_VERSION }}
+          extensions: ${{ env.PHP_EXTENSIONS }}
+          tools: ${{ env.PHP_TOOLS }}
+
+      - name: Get Composer Cache Directory
+        id: composer-cache
+        run: |
+          echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+      - uses: actions/cache@v4
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-composer-
+
+      - name: Install dependencies
+        run: composer update --no-interaction --no-progress
+
+      - name: Static analysis
+        run: composer phpstan
+        
+      - name: Run unit tests
+        run: composer test:unit
diff --git a/.gitignore b/.gitignore
index 5d13a24..12129b3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
 composer.lock
 vendor
 .idea
+/.settings/
+/.project
+/.buildpath
+/.vscode
+/cache
\ No newline at end of file
diff --git a/README.md b/README.md
index 7e96dfe..2981da9 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ SDK API-3.0 PHP
     * [x] Com autorização na primeira recorrência.
     * [x] Com autorização a partir da primeira recorrência.
 * [x] Pagamentos por cartão de débito.
+* [x] Pagamentos por pix.
 * [x] Pagamentos por boleto.
 * [x] Pagamentos por transferência eletrônica.
 * [x] Cancelamento de autorização.
@@ -21,7 +22,7 @@ Por envolver a interface de usuário da aplicação, o SDK funciona apenas como
 
 ## Dependências
 
-* PHP >= 5.6
+* PHP >= 8.3
 
 ## Instalando o SDK
 
@@ -29,20 +30,25 @@ Se já possui um arquivo `composer.json`, basta adicionar a seguinte dependênci
 
 ```json
 "require": {
-    "developercielo/api-3.0-php": "^1.0"
+    "developercielo/api-3.0-php": "^2.0.0"
 }
 ```
 
-Com a dependência adicionada ao `composer.json`, basta executar:
+Adicionar o `repositories` no `composer.json`
 
-```
-composer install
+```json
+"repositories": [
+    {
+        "type": "vcs",
+        "url": "https://github.com/edson-nascimento/API-3.0-PHP"
+    }
+],
 ```
 
-Alternativamente, você pode executar diretamente em seu terminal:
+Com a dependência adicionada ao `composer.json`, basta executar:
 
 ```
-composer require "developercielo/api-3.0-php"
+composer update
 ```
 
 ## Produtos e Bandeiras suportadas e suas constantes
@@ -424,6 +430,23 @@ try {
 }
 ```
 
+### Criando uma venda com PIX
+
+```php
+<?php
+// ...
+$sale = new Sale('123');
+
+$customer = $sale->customer('Fulano de Tal');
+
+$payment = $sale->payment(15700);
+$payment->pix();
+$payment->setCapture(true);
+
+$sale = (new CieloEcommerce($merchant, $environment))->createSale($sale);
+// ...
+```
+
 ### Tokenizando um cartão
 
 ```php
diff --git a/composer.json b/composer.json
index 60c692e..5700d8e 100644
--- a/composer.json
+++ b/composer.json
@@ -1,21 +1,42 @@
 {
-  "autoload": {
-    "psr-0": {
-      "Cielo": "src"
-    }
-  },
   "name": "developercielo/api-3.0-php",
   "description": "Integração com a API 3.0 da Cielo",
-  "license": "MIT",
   "type": "library",
   "require": {
-    "php": ">=5.6",
+    "php": "^8.2",
     "ext-curl": "*",
     "ext-json": "*",
-    "psr/log":"^1.1"
+    "psr/log": "^1.1"
+  },
+  "require-dev": {
+    "phpunit/phpunit": "^11.1.2",
+    "phpstan/phpstan": "^1.10.67",
+    "kint-php/kint": "^5.1.0"
+  },
+  "autoload": {
+    "psr-0": {
+      "Cielo": "src"
+    }
+  },
+  "autoload-dev": {
+    "psr-4": {
+      "TestApp\\": "tests/"
+    }
   },
   "suggest": {
     "monolog/monolog": "Allows more advanced logging of the application flow"
   },
-  "homepage": "https://github.com/DeveloperCielo/API-3.0-PHP"
-}
+  "homepage": "https://github.com/DeveloperCielo/API-3.0-PHP",
+  "scripts": {
+    "phpstan": "phpstan analyse -c phpstan.neon",
+    "phpunit": "phpunit --configuration phpunit.xml --testdox --exclude-group payment",
+    "test": [
+      "@phpstan",
+      "@phpunit"
+    ],
+    "test:unit": "phpunit tests/Unit --configuration phpunit.xml --testdox",
+    "test:e2e": "phpunit tests/E2E --configuration phpunit.xml --testdox"
+  },
+  "license": "MIT",
+  "minimum-stability": "stable"
+}
\ No newline at end of file
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..0f3cb1d
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,17 @@
+parameters:
+    level: 5
+    phpVersion: 80300
+    checkFunctionNameCase: true
+    checkInternalClassCaseSensitivity: true
+    reportMaybesInPropertyPhpDocTypes: true
+    checkExplicitMixedMissingReturn: true
+    reportMaybesInMethodSignatures: true
+    reportStaticMethodSignatures: true
+    checkTooWideReturnTypesInProtectedAndPublicMethods: true
+    checkDynamicProperties: true
+    reportAlwaysTrueInLastCondition: true
+    paths:
+        - ./
+    excludePaths:
+        - ./vendor/*
+    ignoreErrors:
\ No newline at end of file
diff --git a/phpunit.xml b/phpunit.xml
new file mode 100644
index 0000000..6d6460d
--- /dev/null
+++ b/phpunit.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<phpunit 
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/11.0/phpunit.xsd"
+    bootstrap="vendor/autoload.php"
+    colors="true"
+    backupGlobals="false"
+    cacheResult="false"
+    cacheDirectory="cache/phpunit"
+    backupStaticProperties="false"
+    displayDetailsOnIncompleteTests="true"
+    displayDetailsOnSkippedTests="true"
+    displayDetailsOnTestsThatTriggerDeprecations="true"
+    displayDetailsOnTestsThatTriggerErrors="true"
+    displayDetailsOnTestsThatTriggerNotices="true"
+    displayDetailsOnTestsThatTriggerWarnings="true"
+>
+    <testsuites>
+        <testsuite name="Tests">
+            <directory suffix="Test.php">tests</directory>
+        </testsuite>
+    </testsuites>
+</phpunit>
\ No newline at end of file
diff --git a/src/Cielo/API30/Ecommerce/Address.php b/src/Cielo/API30/Ecommerce/Address.php
index d16e71e..4777909 100644
--- a/src/Cielo/API30/Ecommerce/Address.php
+++ b/src/Cielo/API30/Ecommerce/Address.php
@@ -26,10 +26,7 @@ class Address implements CieloSerializable
 
     private $district;
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
diff --git a/src/Cielo/API30/Ecommerce/CieloEcommerce.php b/src/Cielo/API30/Ecommerce/CieloEcommerce.php
index f297d73..2d6b18c 100644
--- a/src/Cielo/API30/Ecommerce/CieloEcommerce.php
+++ b/src/Cielo/API30/Ecommerce/CieloEcommerce.php
@@ -27,10 +27,7 @@ class CieloEcommerce
 	 * requests will be send
 	 *
 	 * @param Merchant $merchant
-	 *            The merchant credentials
-	 * @param Environment environment
-	 *            The environment: {@link Environment::production()} or
-	 *            {@link Environment::sandbox()}
+	 * @param Environment $environment
 	 * @param LoggerInterface|null $logger
 	 */
     public function __construct(Merchant $merchant, Environment $environment = null, LoggerInterface $logger = null)
@@ -117,7 +114,7 @@ public function getRecurrentPayment($recurrentPaymentId)
      * @param integer $amount
      *            Order value in cents
      *
-     * @return Sale The Sale with authorization, tid, etc. returned by Cielo.
+     * @return \Cielo\API30\Ecommerce\Payment
      *
      * @throws \Cielo\API30\Ecommerce\Request\CieloRequestException if anything gets wrong.
      *
diff --git a/src/Cielo/API30/Ecommerce/CieloSerializable.php b/src/Cielo/API30/Ecommerce/CieloSerializable.php
index 05d13a7..8a8e873 100644
--- a/src/Cielo/API30/Ecommerce/CieloSerializable.php
+++ b/src/Cielo/API30/Ecommerce/CieloSerializable.php
@@ -12,7 +12,7 @@ interface CieloSerializable extends \JsonSerializable
     /**
      * @param \stdClass $data
      *
-     * @return mixed
+     * @return void
      */
     public function populate(\stdClass $data);
 }
diff --git a/src/Cielo/API30/Ecommerce/CreditCard.php b/src/Cielo/API30/Ecommerce/CreditCard.php
index e83b4b8..1078a16 100644
--- a/src/Cielo/API30/Ecommerce/CreditCard.php
+++ b/src/Cielo/API30/Ecommerce/CreditCard.php
@@ -111,10 +111,7 @@ public function populate(\stdClass $data)
         $this->customerName   = isset($data->CustomerName) ? $data->CustomerName : null;
     }
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
diff --git a/src/Cielo/API30/Ecommerce/Customer.php b/src/Cielo/API30/Ecommerce/Customer.php
index c24dc69..479950a 100644
--- a/src/Cielo/API30/Ecommerce/Customer.php
+++ b/src/Cielo/API30/Ecommerce/Customer.php
@@ -34,10 +34,7 @@ public function __construct($name = null)
         $this->setName($name);
     }
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
diff --git a/src/Cielo/API30/Ecommerce/Payment.php b/src/Cielo/API30/Ecommerce/Payment.php
index 574f88a..09559ef 100644
--- a/src/Cielo/API30/Ecommerce/Payment.php
+++ b/src/Cielo/API30/Ecommerce/Payment.php
@@ -18,6 +18,8 @@ class Payment implements \JsonSerializable
 
     const PAYMENTTYPE_BOLETO = 'Boleto';
 
+    const PAYMENTTYPE_PIX = 'Pix';
+    
     const PROVIDER_BRADESCO = 'Bradesco';
 
     const PROVIDER_BANCO_DO_BRASIL = 'BancoDoBrasil';
@@ -107,6 +109,12 @@ class Payment implements \JsonSerializable
     private $identification;
 
     private $instructions;
+   
+    private $acquirerTransactionId;
+    
+    private $qrcodeBase64Image;
+    
+    private $qrCodeString;
 
     /**
      * Payment constructor.
@@ -194,12 +202,13 @@ public function populate(\stdClass $data)
         $this->demonstrative  = isset($data->Demonstrative) ? $data->Demonstrative : null;
         $this->identification = isset($data->Identification) ? $data->Identification : null;
         $this->instructions   = isset($data->Instructions) ? $data->Instructions : null;
+
+        $this->acquirerTransactionId   = isset($data->AcquirerTransactionId) ? $data->AcquirerTransactionId : null;
+        $this->qrcodeBase64Image       = isset($data->QrcodeBase64Image) ? $data->QrcodeBase64Image : null;
+        $this->qrCodeString            = isset($data->QrCodeString) ? $data->QrCodeString : null;
     }
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
@@ -264,6 +273,18 @@ public function recurrentPayment($authorizeNow = true)
 
         return $recurrentPayment;
     }
+    
+    /**
+     * 
+     * @return $this
+     */
+    public function pix()
+    {
+        $this->setType(self::PAYMENTTYPE_PIX);
+        $this->setCapture(true);
+
+        return $this;
+    }
 
     /**
      * @return mixed
@@ -1104,4 +1125,66 @@ public function setInstructions($instructions)
 
         return $this;
     }
+    
+    /**
+     * @return string|NULL
+     */
+    public function getAcquirerTransactionId()
+    {
+        return $this->acquirerTransactionId;
+    }
+
+    /**
+     * @param $acquirerTransactionId
+     * 
+     * @return $this
+     */
+    public function setAcquirerTransactionId($acquirerTransactionId)
+    {
+        $this->acquirerTransactionId = $acquirerTransactionId;
+        
+        return $this;
+    }
+
+    /**
+     * @return string|NULL
+     */
+    public function getQrcodeBase64Image()
+    {
+        return $this->qrcodeBase64Image;
+    }
+
+    /**
+     * @param $qrcodeBase64Image
+     * 
+     * @return $this
+     * 
+     */
+    public function setQrcodeBase64Image($qrcodeBase64Image)
+    {
+        $this->qrcodeBase64Image = $qrcodeBase64Image;
+        
+        return $this;
+    }
+
+    /**
+     * @return string|NULL
+     */
+    public function getQrCodeString()
+    {
+        return $this->qrCodeString;
+    }
+
+    /**
+     * @param $qrCodeString
+     * 
+     * @return $this
+     */
+    public function setQrCodeString($qrCodeString)
+    {
+        $this->qrCodeString = $qrCodeString;
+        
+        return $this;
+    }
+
 }
diff --git a/src/Cielo/API30/Ecommerce/RecurrentPayment.php b/src/Cielo/API30/Ecommerce/RecurrentPayment.php
index 088ccf8..6f2be69 100644
--- a/src/Cielo/API30/Ecommerce/RecurrentPayment.php
+++ b/src/Cielo/API30/Ecommerce/RecurrentPayment.php
@@ -97,10 +97,7 @@ public function populate(\stdClass $data)
         $this->status        = isset($data->Status) ? $data->Status : null;
     }
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
diff --git a/src/Cielo/API30/Ecommerce/Request/AbstractRequest.php b/src/Cielo/API30/Ecommerce/Request/AbstractRequest.php
index 4c4da2a..c53cb60 100644
--- a/src/Cielo/API30/Ecommerce/Request/AbstractRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/AbstractRequest.php
@@ -49,7 +49,7 @@ protected function sendRequest($method, $url, \JsonSerializable $content = null)
     {
         $headers = [
             'Accept: application/json',
-            'Accept-Encoding: gzip',
+            //'Accept-Encoding: gzip',
             'User-Agent: CieloEcommerce/3.0 PHP SDK',
             'MerchantId: ' . $this->merchant->getId(),
             'MerchantKey: ' . $this->merchant->getKey(),
@@ -104,7 +104,9 @@ protected function sendRequest($method, $url, \JsonSerializable $content = null)
         if (curl_errno($curl)) {
             $message = sprintf('cURL error[%s]: %s', curl_errno($curl), curl_error($curl));
 
-            $this->logger->error($message);
+            if ($this->logger !== null) {
+                $this->logger->error($message);
+            }
 
             throw new \RuntimeException($message);
         }
@@ -135,17 +137,23 @@ protected function readResponse($statusCode, $responseBody)
                 $exception = null;
                 $response  = json_decode($responseBody);
 
-                foreach ($response as $error) {
-                    $cieloError = new CieloError($error->Message, $error->Code);
-                    $exception  = new CieloRequestException('Request Error', $statusCode, $exception);
-                    $exception->setCieloError($cieloError);
+                if (is_array($response) && count($response) > 0) {
+                    foreach ($response as $error) {
+                        $cieloError = new CieloError($error->Message, $error->Code);
+                        $exception  = new CieloRequestException('Request Error', $statusCode, $exception);
+                        $exception->setCieloError($cieloError);
+                    }
+                } else {
+                    $exception  = new CieloRequestException("Request Error $statusCode, response: $responseBody", $statusCode);
                 }
 
                 throw $exception;
+            case 401:
+                throw new CieloRequestException('HTTP 401 NotAuthorized', $statusCode, null);
             case 404:
                 throw new CieloRequestException('Resource not found', 404, null);
             default:
-                throw new CieloRequestException('Unknown status', $statusCode);
+                throw new CieloRequestException("Unknown statusCode $statusCode, response: $responseBody", $statusCode);
         }
 
         return $unserialized;
diff --git a/src/Cielo/API30/Ecommerce/Request/CreateSaleRequest.php b/src/Cielo/API30/Ecommerce/Request/CreateSaleRequest.php
index f3c9659..ebe93a5 100644
--- a/src/Cielo/API30/Ecommerce/Request/CreateSaleRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/CreateSaleRequest.php
@@ -34,7 +34,7 @@ public function __construct(Merchant $merchant, Environment $environment, Logger
     /**
      * @param $sale
      *
-     * @return null
+     * @return Sale
      * @throws \Cielo\API30\Ecommerce\Request\CieloRequestException
      * @throws \RuntimeException
      */
diff --git a/src/Cielo/API30/Ecommerce/Request/QueryRecurrentPaymentRequest.php b/src/Cielo/API30/Ecommerce/Request/QueryRecurrentPaymentRequest.php
index 8309772..b9fe577 100644
--- a/src/Cielo/API30/Ecommerce/Request/QueryRecurrentPaymentRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/QueryRecurrentPaymentRequest.php
@@ -34,7 +34,7 @@ public function __construct(Merchant $merchant, Environment $environment, Logger
     /**
      * @param $recurrentPaymentId
      *
-     * @return null
+     * @return RecurrentPayment
      * @throws \Cielo\API30\Ecommerce\Request\CieloRequestException
      * @throws \RuntimeException
      */
diff --git a/src/Cielo/API30/Ecommerce/Request/QuerySaleRequest.php b/src/Cielo/API30/Ecommerce/Request/QuerySaleRequest.php
index e7953b2..cb99400 100644
--- a/src/Cielo/API30/Ecommerce/Request/QuerySaleRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/QuerySaleRequest.php
@@ -34,7 +34,7 @@ public function __construct(Merchant $merchant, Environment $environment, Logger
     /**
      * @param $paymentId
      *
-     * @return null
+     * @return Sale
      * @throws \Cielo\API30\Ecommerce\Request\CieloRequestException
      * @throws \RuntimeException
      */
diff --git a/src/Cielo/API30/Ecommerce/Request/TokenizeCardRequest.php b/src/Cielo/API30/Ecommerce/Request/TokenizeCardRequest.php
index 722e367..e300902 100644
--- a/src/Cielo/API30/Ecommerce/Request/TokenizeCardRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/TokenizeCardRequest.php
@@ -1,5 +1,4 @@
 <?php
-
 namespace Cielo\API30\Ecommerce\Request;
 
 use Cielo\API30\Ecommerce\CreditCard;
@@ -16,25 +15,31 @@ class TokenizeCardRequest extends AbstractRequest
 {
 
     private $environment;
-    /** @var Merchant $merchant */
+
+    /**
+     * TODO not used
+     * @var Merchant $merchant
+     * @phpstan-ignore-next-line
+     */
     private $merchant;
 
-	/**
-	 * CreateCardTokenRequestHandler constructor.
-	 *
-	 * @param Merchant $merchant
-	 * @param Environment $environment
-	 * @param LoggerInterface|null $logger
-	 */
+    /**
+     * CreateCardTokenRequestHandler constructor.
+     *
+     * @param Merchant $merchant
+     * @param Environment $environment
+     * @param LoggerInterface|null $logger
+     */
     public function __construct(Merchant $merchant, Environment $environment, LoggerInterface $logger = null)
     {
         parent::__construct($merchant, $logger);
 
-        $this->merchant    = $merchant;
+        $this->merchant = $merchant;
         $this->environment = $environment;
     }
 
     /**
+     *
      * @inheritdoc
      */
     public function execute($param)
@@ -45,6 +50,7 @@ public function execute($param)
     }
 
     /**
+     *
      * @inheritdoc
      */
     protected function unserialize($json)
diff --git a/src/Cielo/API30/Ecommerce/Request/UpdateSaleRequest.php b/src/Cielo/API30/Ecommerce/Request/UpdateSaleRequest.php
index 54b9b02..4fafc21 100644
--- a/src/Cielo/API30/Ecommerce/Request/UpdateSaleRequest.php
+++ b/src/Cielo/API30/Ecommerce/Request/UpdateSaleRequest.php
@@ -26,7 +26,7 @@ class UpdateSaleRequest extends AbstractRequest
 	/**
 	 * UpdateSaleRequest constructor.
 	 *
-	 * @param Merchant $type
+	 * @param string $type
 	 * @param Merchant $merchant
 	 * @param Environment $environment
 	 * @param LoggerInterface|null $logger
@@ -42,7 +42,7 @@ public function __construct($type, Merchant $merchant, Environment $environment,
     /**
      * @param $paymentId
      *
-     * @return null
+     * @return Payment
      * @throws \Cielo\API30\Ecommerce\Request\CieloRequestException
      * @throws \RuntimeException
      */
diff --git a/src/Cielo/API30/Ecommerce/Sale.php b/src/Cielo/API30/Ecommerce/Sale.php
index 07639e7..547b569 100644
--- a/src/Cielo/API30/Ecommerce/Sale.php
+++ b/src/Cielo/API30/Ecommerce/Sale.php
@@ -19,7 +19,7 @@ class Sale implements \JsonSerializable
     /**
      * Sale constructor.
      *
-     * @param null $merchantOrderId
+     * @param string|int $merchantOrderId
      */
     public function __construct($merchantOrderId = null)
     {
@@ -33,7 +33,7 @@ public function __construct($merchantOrderId = null)
      */
     public static function fromJson($json)
     {
-        $object = json_decode($json);
+        $object = json_decode($json) ?: json_decode(gzdecode($json));
 
         $sale = new Sale();
         $sale->populate($object);
@@ -63,10 +63,7 @@ public function populate(\stdClass $data)
         }
     }
 
-    /**
-     * @return array
-     */
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return get_object_vars($this);
     }
diff --git a/tests/Unit/SaleTest.php b/tests/Unit/SaleTest.php
new file mode 100644
index 0000000..2bfb105
--- /dev/null
+++ b/tests/Unit/SaleTest.php
@@ -0,0 +1,52 @@
+<?php
+namespace TestApp\Unit;
+
+use PHPUnit\Framework\TestCase;
+use Cielo\API30\Ecommerce\Sale;
+use Cielo\API30\Ecommerce\CreditCard;
+use Cielo\API30\Ecommerce\Payment;
+
+final class SaleTest extends TestCase
+{
+
+    public function testSalePayment(): void
+    {
+        $sale = new Sale('123');
+
+        $this->assertSame('123', $sale->getMerchantOrderId());
+
+        $payment = $sale->payment(15800);
+        $this->assertSame($payment, $sale->getPayment());
+        $this->assertSame(15800, $payment->getAmount());
+        $this->assertSame(1, $payment->getInstallments());
+
+        $payment = $sale->payment(15800, 7);
+        $this->assertSame(7, $payment->getInstallments());
+    }
+
+    public function testSalePaymentType(): void
+    {
+        $sale = new Sale('123');
+        $payment = $sale->payment(27400);
+
+        $payment->creditCard("123", CreditCard::VISA)
+            ->setExpirationDate("12/2018")
+            ->setCardNumber("0000000000000001")
+            ->setHolder("Fulano de Tal")
+            ->setSaveCard(true);
+        $this->assertSame(Payment::PAYMENTTYPE_CREDITCARD, $payment->getType());
+        $this->assertFalse($payment->getCapture());
+
+        $payment->debitCard("123", CreditCard::VISA)
+            ->setExpirationDate("12/2018")
+            ->setCardNumber("0000000000000001")
+            ->setHolder("Fulano de Tal")
+            ->setSaveCard(true);
+        $this->assertSame(Payment::PAYMENTTYPE_DEBITCARD, $payment->getType());
+        $this->assertFalse($payment->getCapture());
+
+        $payment->pix();
+        $this->assertSame(Payment::PAYMENTTYPE_PIX, $payment->getType());
+        $this->assertTrue($payment->getCapture());
+    }
+}
\ No newline at end of file