pipelinetest/tests/IbanValidatorTest.php

<?php

declare(strict_types = 1);

namespace Systopia\PipelineTest;

use PHPUnit\Framework\TestCase;

/**
 * @covers \Systopia\PipelineTest\IbanValidator
 */
final class IbanValidatorTest extends TestCase {

  /**
   * @dataProvider validIbans
   */
  public function testAValidIban(string $iban): void {
    static::assertTrue((new IbanValidator())->isValid($iban));
  }

  /**
   * @return array<string, array{0: string}>
   */
  public static function validIbans(): array {
    return [
      'germany' => ['DE89370400440532013000'],
      'grouped' => ['DE89 3704 0044 0532 0130 00'],
      'lowercase' => ['de89370400440532013000'],
      'austria' => ['AT611904300234573201'],
      'netherlands with letters' => ['NL91ABNA0417164300'],
    ];
  }

  /**
   * @dataProvider invalidIbans
   */
  public function testAnInvalidIban(string $iban): void {
    static::assertFalse((new IbanValidator())->isValid($iban));
  }

  /**
   * @return array<string, array{0: string}>
   */
  public static function invalidIbans(): array {
    return [
      'wrong checksum' => ['DE88370400440532013000'],
      'too short' => ['DE8937040044053201300'],
      'unknown country' => ['XX89370400440532013000'],
      'invalid character' => ['DE89370400440532013!00'],
      'empty' => [''],
    ];
  }

  public function testNormalizeStripsSeparatorsAndUppercases(): void {
    static::assertSame('DE89370400440532013000', (new IbanValidator())->normalize(' de89 3704-0044 0532 0130 00 '));
  }

}