MathPHP\SetTheory\SetOperationsTest::dataProviderForAdd PHP Метод

    public function dataProviderForAdd()
    {
        $vector = new Vector([1, 2, 3]);
        return [[[], null, [null]], [[], new Set(), ['Ø' => new Set()]], [[], 1, [1 => 1]], [[1, 2, 3], 4, [1, 2, 3, 4]], [[1, 2, 3], 1, [1, 2, 3]], [[1, 2, 3], 'new', [1, 2, 3, 'new']], [[1, 2, 3], 3.1, [1, 2, 3, 3.1]], [[1, 2, 3], new Set(), [1, 2, 3, 'Ø']], [[1, 2, 3], new Set([4, 5]), [1, 2, 3, 'Set{4, 5}']], [[1, 2, 3], new Set([1, 2]), [1, 2, 3, 'Set{1, 2}']], [[1, 2, 3], -3, [1, 2, 3, -3]], [[1, 2, 3], $vector, [1, 2, 3, $vector]]];
    }