NsplTest\ATest::testExtend PHP Метод

    public function testExtend()
    {
        $this->assertEquals([1, 2, 3, 4, 5, 6], extend([1, 2, 3], [4, 5, 6]));
        $this->assertEquals([1, 2, 3, 3, 4, 5], extend([1, 2, 3], [3, 4, 5]));
        $this->assertEquals([1, 2, 3, 3, 4, 5], extend(new \ArrayIterator([1, 2, 3]), [3, 4, 5]));
        $this->assertEquals([1, 2, 3, 3, 4, 5], extend([1, 2, 3], new \ArrayIterator([3, 4, 5])));
        $this->assertEquals([4, 5, 6], extend([], [4, 5, 6]));
        $this->assertEquals([1, 2, 3], extend([1, 2, 3], []));
        $this->assertEquals([1, 2, 3, 4, 5, 6], call_user_func(extend, [1, 2, 3], [4, 5, 6]));
        $this->assertEquals('\\nspl\\a\\merge', extend);
    }