/**
* @dataProvider getTestCollectionData
*/
public function testSetValueOnNullKey($item)
{
$collection = new Collection($item);
/** @var $collection Collection */
$this->assertEquals(2, $collection->count());
$collection[] = 'foo';
$this->assertEquals(3, $collection->count());
// test finding next free numeric key
$collection[] = 'foo';
$this->assertEquals(4, $collection->count());
}
/**
* Gets all but the last element or last n elements of collection.
*
* Returns mixed[]
*
* @param Collection $collection
* @param int $count
* @return Collection
*/
public function __invoke($collection, $count = 1)
{
$values = array_slice($collection->toArray(), 0, -$count);
return $this->copyCollectionWith($collection, $values);
}
/**
* Returns the smallest value in the collection.
*
* @param Collection $collection
* @return mixed
*/
public function __invoke(Collection $collection)
{
return min($collection->toArray());
}
/**
* Shuffles the values of a collection while preserving the keys.
*
* @param Collection $collection
* @return Collection
*/
public function __invoke($collection)
{
$values = $this->shuffleAssoc($collection->toArray());
return $this->copyCollectionWith($collection, $values);
}
/**
* Allows applying some operator to entire collection at once and returning it's result
*
* @param Collection $collection
* @param callable $iterator
* @return Collection
*/
public function __invoke($collection, $iterator)
{
$values = call_user_func($iterator, $collection->toArray());
return $this->copyCollectionWith($collection, $values);
}
/**
* Returns the key of the given value, in the last possible position.
*
* @param Collection $collection
* @return mixed
*/
public function __invoke(Collection $collection, $value)
{
$values = array_reverse($collection->toArray(), true);
return array_search($value, $values, true);
}
/**
* Gets the size of the collection by returning length for arrays or number of enumerable properties for objects.
*
* @param Collection $collection
* @return int
*/
public function __invoke(Collection $collection)
{
return $collection->count();
}
/**
* Creates an collection composed of the enumerable property values of object.
*
* @param Collection $collection
* @return Collection
*/
public function __invoke($collection)
{
$values = array_values($collection->toArray());
return $this->copyCollectionWith($collection, $values);
}
/**
* Invokes $callback with the wrapped value of collection as the first argument
* and then wraps it back.
*
* The purpose of this Mutator
* is to "tap into" a Mutator
* chain in order to
* perform operations on intermediate results within the chain.
*
* @param Collection $collection
* @param callable $iterator
* @return Collection
*/
public function __invoke($collection, $iterator)
{
call_user_func($iterator, $collection->toArray());
return $collection;
}
/**
* Determine if the given key exists in the collection.
*
* @param Collection $collection
* @param string $key
* @return mixed
*/
public function __invoke(Collection $collection, $key)
{
return $collection->offsetExists($key);
}
/**
* Returns wrapped object
*
* @param Collection $collection
* @return mixed
*/
public function __invoke(Collection $collection)
{
return $collection->value();
}
