introduce reopen() method to be used for unit test execution only - right after a unit test has been executed the session will be reopened

lib/private/session/memory.php

@@ -63,6 +63,13 @@ class Memory extends Session {
 		$this->data = array();
 	}
 
+	/**
+	 * Helper function for PHPUnit execution - don't use in non-test code
+	 */
+	public function reopen() {
+		$this->sessionClosed = false;
+	}
+
 	/**
 	 * In case the session has already been locked an exception will be thrown
 	 *

tests/startsessionlistener.php

@@ -27,11 +27,12 @@ class StartSessionListener implements PHPUnit_Framework_TestListener {
 	}
 
 	public function endTest(PHPUnit_Framework_Test $test, $time) {
-		// new session
-		\OC::$session = new \OC\Session\Memory('');
-
-		// load the version
-		OC_Util::getVersion();
+		// reopen the session - only allowed for memory session
+		if (\OC::$session instanceof \OC\Session\Memory) {
+			/** @var $session \OC\Session\Memory */
+			$session = \OC::$session;
+			$session->reopen();
+		}
 	}
 
 	public function startTestSuite(PHPUnit_Framework_TestSuite $suite) {