/**
* Initializes a new instance of that class.
*
* @param mixed $previousValue The value that was set via IItemContext::nextValue() in the context of
* the previous item.
*
* @param IEnumerable $seq The underlying sequence.
*/
public function __construct(IEnumerable $seq, $previousValue = null)
{
$this->_seq = $seq;
$this->_previousValue = $previousValue;
$this->_key = $this->_seq->key();
$this->_item = $this->_seq->current();
}
/**
* Checks a sequence if it has an expected list of same values (in the same order).
*
* @param IEnumerable $seq The sequence.
* @param array $expected The expected values.
* @param bool $exact Check values exactly or not.
*/
protected function checkForExpectedValues(IEnumerable $seq, array $expected = [], bool $exact = true)
{
foreach ($expected as $index => $ev) {
$seq->reset();
$count = $index;
while ($count-- > 0 && $seq->valid()) {
$seq->next();
}
$av = $seq->current();
if ($exact) {
$this->assertSame($ev, $av);
} else {
$this->assertEquals($ev, $av);
}
}
}
/**
* {@inheritDoc}
*/
public function current()
{
return $this->_seq->current();
}
