public function testValidMultiByte()
{
$s = new Stringizer(" ȘŦŗÍñĝìzĕŕ こんにちは ");
$this->assertEquals("ȘŦŗÍñĝìzĕŕ こんにちは", $s->collapseWhitespace());
$s = new Stringizer(" Ș Ŧ ŗ Í ñ ĝ ì z ĕ ŕ こ ん に ち は ");
$this->assertEquals("Ș Ŧ ŗ Í ñ ĝ ì z ĕ ŕ こ ん に ち は", $s->collapseWhitespace());
$s = new Stringizer("ȘŦŗÍñĝ\n\nìzĕŕ \n\t \r");
$this->assertEquals("ȘŦŗÍñĝ ìzĕŕ", $s->collapseWhitespace());
}
