/**
* We've got a map of strings, and we should be able to call keys on it
* and get the keys out, even if the keys aren't themselves strings.
*/
public function test_keys_with_exotic_keys()
{
$map = new MapOfStrings();
$map['foo'] = 'bar';
$map[function () {
}] = 'baz';
$map->keys();
}
public function test_fluent_conversion()
{
$words = new MapOfStrings(['foo', 'bar']);
$this->assertSame(6, $words->map('strlen($_0)')->into(new MapOfInts())->sum());
}
