NsplTest\OpTest\OpTest::testPropertyGetter PHP Метод

    public function testPropertyGetter()
    {
        $users = [new User('John', 18), new User('Jack', 20), new User('Sarah', 19)];
        $this->assertEquals(['John', 'Jack', 'Sarah'], map(propertyGetter('name'), $users));
        $this->assertEquals([18, 20, 19], map(propertyGetter('age'), $users));
        $this->assertEquals([array('name' => 'John', 'age' => 18), array('name' => 'Jack', 'age' => 20), array('name' => 'Sarah', 'age' => 19)], map(propertyGetter('name', 'age'), $users));
    }