public function testLookAhead()
{
$reader = new StreamReader('tests/sample/hello-world.txt');
$this->assertEquals('S', $reader->lookAhead());
$this->assertEquals('y', $reader->lookAheadOffset(1));
$this->assertEquals('S', $reader->readByte());
$this->assertEquals('y', $reader->lookAhead());
$this->assertEquals('y', $reader->lookAhead());
$this->assertEquals('y', $reader->readByte());
$this->assertEquals('n', $reader->lookAhead());
$this->assertEquals(' ', $reader->lookAheadOffset(2));
$this->assertEquals('n', $reader->readByte());
$reader->close();
}
