Api: added withUrl() factory [Ref #18]

Author: milo

src/Github/Api.php

@@ -318,6 +318,18 @@ public function getClient()
 	}
 
 
+	/**
+	 * @param  string
+	 * @return Api
+	 */
+	public function withUrl($url)
+	{
+		$api = clone $this;
+		$api->setUrl($url);
+		return $api;
+	}
+
+
 	/**
 	 * @param  string
 	 * @return self

tests/Github/Api.phpt

@@ -29,12 +29,19 @@ test(function() {
 	Assert::same($api, $api->setUrl('url://test'));
 	Assert::same('url://test', $api->getUrl());
 
+	$clone = $api->withUrl('url://cloned');
+	Assert::notSame($api, $clone);
+	Assert::same('url://test', $api->getUrl());
+	Assert::same('url://cloned', $clone->getUrl());
+	Assert::same($api->getClient(), $clone->getClient());
+
 	$token = new Milo\Github\OAuth\Token('hash');
 	Assert::null($api->getToken());
 	Assert::same($api, $api->setToken($token));
 	Assert::same($token, $api->getToken());
 	$api->setToken(NULL);
 	Assert::null($api->getToken());
+
 });