Added support to sign with hmac_sha512

Author: gabidavila

src/Signature/HmacSha512Signature.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace ApiClients\Tools\Psr7\Oauth1\Signature;
+
+class HmacSha512Signature extends HmacSignature
+{
+    protected function getHashingAlgorithm()
+    {
+        return 'sha512';
+    }
+}

tests/Signature/HmacSha512SignatureTest.php

@@ -0,0 +1,60 @@
+<?php
+
+namespace ApiClients\Tests\Tools\Psr7\Oauth1\Signature;
+
+use ApiClients\Tools\Psr7\Oauth1\Definition\ConsumerSecret;
+use ApiClients\Tools\Psr7\Oauth1\Definition\TokenSecret;
+use ApiClients\Tools\Psr7\Oauth1\Signature\HmacSha512Signature;
+use GuzzleHttp\Psr7\Uri;
+use Psr\Http\Message\UriInterface;
+
+class HmacSha512SignatureTest extends \PHPUnit_Framework_TestCase
+{
+    public function testGetMethod()
+    {
+        $this->assertSame('HMAC-SHA512', (new HmacSha512Signature(new ConsumerSecret('secret')))->getMethod());
+    }
+
+    public function provideSign()
+    {
+        return [
+            [
+                new Uri('https://example.com/'),
+                'kWHPexc3goH9/jVh2MTYuAqMg6FLTKwZX63C9WmhuoCEoz1Ye5+kew3uSEg/JuQOWxbtN4jm05eSRuvIWmF0ZA==',
+                'laMFvK2JMbORQp79wtajx0ESMG+U6DFlE0LBOacmsXK80dfTscLljseRi4pHeEUn1V+fDTNUIzTYjCK5DgQmRQ==',
+            ],
+            [
+                new Uri('https://example.com/thea.pot',[], 'THEAPOT'),
+                '/I2kMebX4xOddQTfJevI6wzFvltybVUTsHlL7h5LcsgySv2Me1+6XC35e79sKFWpw5WTYaOCM7D2MNInA5NKUw==',
+                'kG+XGV4utRgXWt3tbJ5361sWHn86plmm1FcLYfjjRL0l1Ogv0D5lMOMWBrCt1pRGhO05he+DPUqZffyBh4M5GA==',
+            ],
+            [
+                new Uri('https://example.com/?foo=bar', ['foo' => 'bar',]),
+                'buNZpqvSzvJI1G1NLVGuiJnm/ZmZ59yfjGhUCXp8E8J98oEQHTMNua3Kawv41ejoj+KPgqw9JMZ/8HKeO7zvgg==',
+                'xAllQX+xlZ6bzmthcEDZ9pyC5nyARMPaTuCe34YC9XeFIvAN+QRM1MattDvssurZN8UMPYHeyvbge1rPxygL8A==',
+            ],
+            [
+                new Uri('https://example.com/',['foo' => 'bar',], 'HEAD'),
+                'kWHPexc3goH9/jVh2MTYuAqMg6FLTKwZX63C9WmhuoCEoz1Ye5+kew3uSEg/JuQOWxbtN4jm05eSRuvIWmF0ZA==',
+                'laMFvK2JMbORQp79wtajx0ESMG+U6DFlE0LBOacmsXK80dfTscLljseRi4pHeEUn1V+fDTNUIzTYjCK5DgQmRQ==',
+            ],
+        ];
+    }
+
+    /**
+     * @param UriInterface $uri
+     * @param $signedSignature
+     * @dataProvider provideSign
+     */
+    public function testSign(UriInterface $uri, $signedSignature, $signedTokenSecretSignature)
+    {
+        $secret = new ConsumerSecret('consumerSecret');
+        $signature = new HmacSha512Signature($secret);
+        $tokenSecret = new TokenSecret('tokenSecret');
+        $this->assertSame($signedSignature, $signature->sign($uri));
+        $signature = $signature->withTokenSecret($tokenSecret);
+        $this->assertSame($signedTokenSecretSignature, $signature->sign($uri));
+        $signature = $signature->withoutTokenSecret();
+        $this->assertSame($signedSignature, $signature->sign($uri));
+    }
+}