/** * Tests if Luhn validator is able to detect valid Luhn sequences */ public function testIsValid() { // Arrange $luhnValidator = new Luhn(); // Arrange // Assert foreach ($this->validLuhns as $number) { $this->assertTrue($luhnValidator->isValid($number)); } foreach ($this->invalidLuhns as $number) { $this->assertFalse($luhnValidator->isValid($number)); } }