Vendoring deprecated composer libs

libs/jsonrpc/tests/Response/HeaderMockTest.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace JsonRPC\Response;
+
+use PHPUnit_Framework_TestCase;
+
+require_once __DIR__.'/../../../../vendor/autoload.php';
+
+function header($value)
+{
+    HeaderMockTest::$functions->header($value);
+}
+
+abstract class HeaderMockTest extends PHPUnit_Framework_TestCase
+{
+    public static $functions;
+
+    public function setUp()
+    {
+        self::$functions = $this
+            ->getMockBuilder('stdClass')
+            ->setMethods(array('header'))
+            ->getMock();
+    }
+}