Is random in test always bad?

sample.php

<?php

class Demo
{
    
    protected $Property;
    public function getProperty() : int
    {
        return $this->Property;
    }
    public function setProperty(int $Value)
    {
        if ($Value == 1) {
            $this->Property = 1;
        } elseif ($Value == 2) {
            $this->Property = 2;
        } else {
            $this->Property = 3;
        }
    }
    
}

class DemoTest extends TestCase
{
    
    public function setUp()
    {
        $this->demo = new Demo();
    }
    
    /**
     * @expectedException     \DomainException
     * @expectedExceptionCode 1502275279
     */
    public function testInvalidProperty()
    {
        $this->demo->setProperty(null);
    }
    
    public function dataProperty()
    {
        return [
            [1, 1],
            [2, 2],
            [3, 3],
        ];
    }

    /**
     * Verify setProperty stores ANY valid integer in the protected Property variable
     *
     * @param mixed $Set      The value passed to setProperty
     * @param mixed $Expected The expected value
     *
     * @dataProvider dataProperty
     *
     * @return void
     */
    public function testValidProperty($Set, $Expected)
    {
        $this->demo->setProperty($Set);
        $this->assertProperty($Expected, $this->demo->getProperty());  
    }
    
    /**
     * @group fuzzTest
     */
    public function testRandomProperty()
    {
        // This will find bug
        for ($i = 1; $i <= 10; $i++) {
            $RandomInteger = rand(PHP_INT_MIN, PHP_INT_MAX);
            $this->testValidProperty($RandomInteger, $RandomInteger);
        }
    }
    
}