Test RequestSigner immutability

Author: WyriHaximus

tests/RequestSigning/RequestSignerTest.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace ApiClients\Tests\Tools\Psr7\Oauth1\RequestSigning;
+
+use ApiClients\Tools\Psr7\Oauth1\Definition\AccessToken;
+use ApiClients\Tools\Psr7\Oauth1\Definition\ConsumerKey;
+use ApiClients\Tools\Psr7\Oauth1\Definition\ConsumerSecret;
+use ApiClients\Tools\Psr7\Oauth1\Definition\TokenSecret;
+use ApiClients\Tools\Psr7\Oauth1\RequestSigning\RequestSigner;
+
+class RequestSignerTest extends \PHPUnit_Framework_TestCase
+{
+    public function testImmutability()
+    {
+        $requestSigner = new RequestSigner(
+            new ConsumerKey('consumer_key'),
+            new ConsumerSecret('consumer_secret')
+        );
+        $requestSignerWithAccessToken = $requestSigner->withAccessToken(
+            new AccessToken('access_token'),
+            new TokenSecret('token_secret')
+        );
+        $this->assertNotSame($requestSigner, $requestSignerWithAccessToken);
+        $requestSignerWithAccessTokenWithoutAccessToken = $requestSignerWithAccessToken->withoutAccessToken();
+        $this->assertNotSame($requestSigner, $requestSignerWithAccessTokenWithoutAccessToken);
+        $this->assertNotSame($requestSignerWithAccessToken, $requestSignerWithAccessTokenWithoutAccessToken);
+        $this->assertEquals($requestSigner, $requestSignerWithAccessTokenWithoutAccessToken);
+    }
+}