public function testUnderscoreKeys()
{
$item = new ParameterBag(['testScore' => 'test', 'test1Score' => 'test', '2TestScore' => 'test', '3test_Score' => 'test', '4test-Score' => 'test', 'TesTScore' => 'test', 'testscore' => ['underScore' => 'test']]);
$transformer = new UnderscoreKeysTransformer();
$transformer->transform($item);
$this->assertEquals(['test_score' => 'test', 'test1score' => 'test', '2test_score' => 'test', '3test_score' => 'test', '4test_score' => 'test', 'tes_tscore' => 'test', 'testscore' => ['under_score' => 'test']], $item->all());
}
/**
* Returns the names of all mapped and extra mapped fields. These are the
* fields that are allowed in the resulting item. The fields are
* normalized to be lowercased and underscored (instead of dashes).
*
* @return array
*/
protected function getMappedFields()
{
$fields = array_diff(array_unique(array_merge(array_values($this->getEntityFields()), array_values($this->getExtraMappedFields()), array_values($this->getMapping()))), $this->getUnmappedFields());
$fields = new ParameterBag(array_flip($fields));
// make sure id is not in it
$fields->remove('id');
$transformer = new UnderscoreKeysTransformer();
$transformer->transform($fields);
return $fields->keys();
}