/**
* @group read-only
*/
public function testGetExtraHeaders()
{
Traackr\TraackrApi::setExtraHeaders($this->singleHeader);
$h = Traackr\TraackrApi::getExtraHeaders();
$this->assertInternalType('array', $h);
$this->assertEquals(1, sizeof($h));
$this->assertContains($this->singleHeader, $h);
Traackr\TraackrApi::setExtraHeaders($this->arrayHeader);
$h = Traackr\TraackrApi::getExtraHeaders();
$this->assertInternalType('array', $h);
$this->assertEquals(2, sizeof($h));
$this->assertContains($this->arrayHeader[0], $h);
$this->assertContains($this->arrayHeader[1], $h);
}