public function addMetaMethodShouldMergeMetaDataWithExisting()
{
// Arrange...
$responseBuilder = $this->app->make('responder.success');
$meta = ['foo' => 1];
$moreMeta = ['bar' => 2];
// Act...
$responseBuilder->addMeta($meta)->addMeta($moreMeta);
// Assert...
$this->assertEquals($responseBuilder->getResource()->getMeta(), array_merge($meta, $moreMeta));
}