public function testIteration()
{
$result = null;
for ($i = 0, $this->iterator->rewind(); $this->iterator->valid(); ++$i, $this->iterator->next()) {
if ($i !== $this->iterator->key()) {
$this->fail('Got invalid key from iterator.');
}
$result .= $this->iterator->current();
}
$this->assertSame($this->initialString, $result);
$this->iterator->prev();
$this->assertTrue($this->iterator->valid());
$this->assertSame($this->buffer->length() - 1, $this->iterator->key());
}
public function testApiSeek_WhenInvalidPositionIsPassed()
{
$this->iterator->seek(-1);
$this->assertSame(0, $this->iterator->key());
}