Elgg\Cache\Pool\StashWrapperTest::testPutComplainsAboutInvalidKeys PHP Method

    public function testPutComplainsAboutInvalidKeys($key)
    {
        $pool = StashWrapper::createEphemeral();
        $this->setExpectedException('PHPUnit_Framework_Error_Warning', 'assert');
        $pool->put($key, 'foo');
    }