public function testDebug()
{
$l = new Logger(new File(__DIR__ . '/../tmp/app.xml'));
$l->debug('Test log message');
$this->assertTrue(file_exists(__DIR__ . '/../tmp/app.xml'));
$this->assertGreaterThan(0, filesize(__DIR__ . '/../tmp/app.xml'));
unlink(__DIR__ . '/../tmp/app.xml');
}