MathPHP\SetTheory\SetOperationsTest::testCopy PHP Метод

    public function testCopy(array $members)
    {
        $set = new Set($members);
        $copy = $set->copy();
        $set_array = $set->asArray();
        $copy_array = $copy->asArray();
        $this->assertEquals($set, $copy);
        $this->assertEquals($set_array, $copy_array);
        $this->assertEquals(count($set), count($copy));
    }