value = '1010100101'; $this->emptyValue = ''; }); it('creates a valid processing code', function (): void { // GIVEN / WHEN $processingCode = new ProcessingCode( $this->value ); // THEN expect($processingCode->value)->toBe($this->value); }); it('rejects invalid processing code', function (): void { // GIVEN / WHEN / THEN expect(fn (): ProcessingCode => new ProcessingCode( $this->emptyValue ))->toThrow(\DomainException::class); }); });