Add Client::useSandbox().

Signed-off-by: Mior Muhammad Zaki <crynobone@gmail.com>

composer.json

@@ -33,7 +33,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "1.0-dev"
+            "dev-master": "0.2-dev"
         }
     },
     "config": {

src/Client.php

@@ -72,14 +72,24 @@ public static function fromAccessToken(string $accessToken)
         return static::make(null, null)->setAccessToken($accessToken);
     }
 
+    /**
+     * Use sandbox environment.
+     *
+     * @return $this
+     */
+    final public function useSandbox(): self
+    {
+        return $this->useCustomApiEndpoint('https://api.insure-staging.katsanalabs.com');
+    }
+
     /**
      * Authenticate helper using OAuth2.
      *
      * @param string $scope
      *
      * @return \Laravie\Codex\Contracts\Response
      */
-    public function authenticate(string $scope = '*'): ResponseContract
+    final public function authenticate(string $scope = '*'): ResponseContract
     {
         return $this->via(new ClientCredentialsGrant())->authenticate();
     }

tests/ClientTest.php

@@ -7,6 +7,15 @@
 
 class ClientTest extends TestCase
 {
+     /** @test */
+    public function it_can_set_endpoint_to_sandbox()
+    {
+        $client = $this->makeClient(Faker::create());
+        $client->useSandbox();
+
+        $this->assertSame('https://api.insure-staging.katsanalabs.com', $client->getApiEndpoint());
+    }
+
     /** @test */
     public function it_can_authenticate_using_passport()
     {