public function test_component_installer()
{
global $CFG;
$ci = new component_installer('http://download.moodle.org', 'unittest', 'downloadtests.zip');
$this->assertTrue($ci->check_requisites());
$destpath = $CFG->dataroot . '/downloadtests';
//carefully remove component files to enforce fresh installation
@unlink($destpath . '/' . 'downloadtests.md5');
@unlink($destpath . '/' . 'test.html');
@unlink($destpath . '/' . 'test.jpg');
@rmdir($destpath);
$this->assertEqual(COMPONENT_NEEDUPDATE, $ci->need_upgrade());
$status = $ci->install();
$this->assertEqual(COMPONENT_INSTALLED, $status);
$this->assertEqual('9e94f74b3efb1ff6cf075dc6b2abf15c', $ci->get_component_md5());
//it's already installed, so Moodle should detect it's up to date
$this->assertEqual(COMPONENT_UPTODATE, $ci->need_upgrade());
$status = $ci->install();
$this->assertEqual(COMPONENT_UPTODATE, $status);
//check if correct files were downloaded
$this->assertEqual('2af180e813dc3f446a9bb7b6af87ce24', md5_file($destpath . '/' . 'test.jpg'));
$this->assertEqual('47250a973d1b88d9445f94db4ef2c97a', md5_file($destpath . '/' . 'test.html'));
}
