public function testMap()
{
$this->properties->map(function ($key, $item) {
return "mapped_" . $item;
});
$this->assertEquals(['foo1' => 'mapped_bar1', 'foo2' => 'mapped_bar2'], $this->properties->toArray());
}
/** @dataProvider provides_valid_collection */
public function test_toArray($collection, array $array)
{
$c = new Map($collection);
$this->assertSame($array, $c->toArray());
}