MathPHP\SetTheory\SetOperationsTest::testAddWithResources PHP Метод

    public function testAddWithResources()
    {
        $set = new Set();
        $fh = fopen(__FILE__, 'r');
        $set->add($fh);
        $set->add($fh);
        // Should only get added once
        $this->assertEquals(1, count($set));
        $this->assertEquals(1, count($set->asArray()));
        $resources = 0;
        foreach ($set as $key => $value) {
            if (is_resource($value)) {
                $resources++;
                $vector_key = 'Resource(' . strval($value) . ')';
                $this->assertEquals($vector_key, $key);
                $this->assertEquals($fh, $value);
            }
        }
        // There should have been one resource
        $this->assertEquals(1, $resources);
    }