public function getHistory($operation = null)
{
$operationToRetrieve = strtolower($operation == null ? $this->currentTotalName : $operation);
if ($this->operationValues->has($operationToRetrieve)) {
return $this->operationValues[$operationToRetrieve]->getHistory();
}
throw new InvalidArgumentException("Operation {$operationToRetrieve} has not been initialized.");
}
/**
* @test
*/
public function forgetで複数要素を削除する()
{
$collection = new Collection(['foo' => 1, 'bar' => 2, 'baz' => 3]);
$collection->forget(['foo', 'bar']);
$this->assertFalse($collection->has('foo'));
$this->assertFalse($collection->has('bar'));
$this->assertTrue($collection->has('baz'));
}
