public function testIsEmptyDirReturn()
{
// To test the return values, disable conversion of errors into exceptions
$warningEnabledOrig = PHPUnit_Framework_Error_Warning::$enabled;
PHPUnit_Framework_Error_Warning::$enabled = false;
$this->assertFalse($this->stub->isEmptyDir(null));
mkdir(__DIR__ . "/emptydir");
$this->assertTrue($this->stub->isEmptyDir(__DIR__ . "/emptydir"));
@rmdir(__DIR__ . "/emptydir");
PHPUnit_Framework_Error_Warning::$enabled = $warningEnabledOrig;
}