/**
* Tests the last() method when on an empty collection
*
* @return void
*/
public function testLAstWithEmptyCollection()
{
$collection = new Collection([]);
$this->assertNull($collection->last());
}
/**
* Tests the last() method
*
* @return void
*/
public function testLast()
{
$collection = new Collection([1, 2, 3]);
$this->assertEquals(3, $collection->last());
$collection = $collection->map(function ($e) {
return $e * 2;
});
$this->assertEquals(6, $collection->last());
}
