Second part of refactoring; should be runnable again, yet not thoroughly tested

dav/sabre-vobject/tests/Sabre/VObject/VersionTest.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace Sabre\VObject;
+
+class VersionTest extends \PHPUnit_Framework_TestCase {
+
+    function testString() {
+
+        $v = Version::VERSION;
+        $this->assertEquals(-1, version_compare('0.9.0',$v));
+
+        $s = Version::STABILITY;
+        $this->assertTrue($s == 'alpha' || $s == 'beta' || $s =='stable');
+
+    }
+
+}