public function testExtAccessors()
{
$url = new \r8\URL();
$this->assertFalse($url->extExists());
$this->assertNull($url->getExt());
$this->assertSame($url, $url->setExt("html"));
$this->assertTrue($url->extExists());
$this->assertSame("html", $url->getExt());
$this->assertSame($url, $url->clearExt());
$this->assertFalse($url->extExists());
$this->assertNull($url->getExt());
$this->assertSame($url, $url->setExt(".CSS"));
$this->assertTrue($url->extExists());
$this->assertSame("CSS", $url->getExt());
$this->assertSame($url, $url->setExt(" "));
$this->assertFalse($url->extExists());
$this->assertNull($url->getExt());
}
