MathPHP\LinearAlgebra\MatrixTest::testToString PHP Метод

    public function testToString()
    {
        $string = $this->matrix->__toString();
        $this->assertTrue(is_string($string));
        $this->assertEquals("[1, 2, 3]\n[2, 3, 4]\n[4, 5, 6]", $string);
    }