/**
* @covers Mobileka\MosaicArray\MosaicArray::pregKeys
*/
public function test_gets_an_array_of_target_arrays_keys_matching_a_regex()
{
$ma = new MosaicArray($this->target);
// should not be found
$result = $ma->pregKeys('/^\\d{5}$/');
assertNull($result);
$expect = 'Mosaic Soft';
$result = $ma->pregKeys('/^\\d{5}$/', 'Mosaic Soft');
assertEquals($expect, $result);
// keys ending with "s"
$expect = ['numbers', 'students'];
$result = $ma->pregKeys('/^.*s$/');
assertEquals($expect, $result);
// containing two numbers in a row
$target = ['5wrong' => '', 'cor55rect' => '', 'corre76ct' => '', 'hello' => 'world'];
$expect = ['cor55rect', 'corre76ct'];
$result = MosaicArray::make($target)->pregKeys('/^.*\\d{2}.*$/');
assertEquals($expect, $result);
}
