describe("->has()", function () {
it("returns `true` if a element has been setted", function () {
$map = new Map();
$instance = new stdClass();
expect($map->set($instance, 'Hello'))->toBe($map);
expect($map->has($instance))->toBe(true);
});
it("returns false if a element doesn't exist", function () {
$map = new Map();
expect($map->has(new stdClass()))->toBe(false);
});
});
describe("->remove()", function () {
it("removes items", function () {
$map = new Map();
$instance = new stdClass();
expect($map->set($instance, 'Hello'))->toBe($map);
expect($map->remove($instance))->toBe($map);
expect($map->has($instance))->toBe(false);
});
});
describe("->count()", function () {
it("removes items", function () {
$map = new Map();
$instance = new stdClass();
expect($map->count())->toBe(0);
expect($map->set($instance, 'Hello'))->toBe($map);
expect($map->count())->toBe(1);
});
});
});
/**
* Indexes a collection.
*
* @param mixed $collection An collection to extract index from.
* @param string $name The field name to build index for.
* @return Map An array of indexes where keys are `$name` values and
* values the corresponding index in the collection.
*/
protected function _index($collection, $name)
{
$indexes = new Map();
foreach ($collection as $key => $entity) {
if (is_object($entity)) {
if ($entity->{$name}) {
$indexes->set($entity->{$name}, $key);
}
} else {
if (isset($entity[$name])) {
$indexes->set($entity[$name], $key);
}
}
}
return $indexes;
}