SizeUnitTest.php in Zircon Profile 8

Contains \Drupal\system\Tests\Common\SizeUnitTest.

Namespace

Drupal\system\Tests\Common

File

core/modules/system/src/Tests/Common/SizeUnitTest.php

<?php

/**
 * @file
 * Contains \Drupal\system\Tests\Common\SizeUnitTest.
 */
namespace Drupal\system\Tests\Common;

use Drupal\Component\Utility\Bytes;
use Drupal\simpletest\KernelTestBase;

/**
 * Parse a predefined amount of bytes and compare the output with the expected
 * value.
 *
 * @group Common
 */
class SizeUnitTest extends KernelTestBase {
  protected $exactTestCases;
  protected $roundedTestCases;
  protected function setUp() {
    parent::setUp();
    $kb = Bytes::KILOBYTE;
    $this->exactTestCases = array(
      '1 byte' => 1,
      '1 KB' => $kb,
      '1 MB' => $kb * $kb,
      '1 GB' => $kb * $kb * $kb,
      '1 TB' => $kb * $kb * $kb * $kb,
      '1 PB' => $kb * $kb * $kb * $kb * $kb,
      '1 EB' => $kb * $kb * $kb * $kb * $kb * $kb,
      '1 ZB' => $kb * $kb * $kb * $kb * $kb * $kb * $kb,
      '1 YB' => $kb * $kb * $kb * $kb * $kb * $kb * $kb * $kb,
    );
    $this->roundedTestCases = array(
      '2 bytes' => 2,
      '1 MB' => $kb * $kb - 1,
      // rounded to 1 MB (not 1000 or 1024 kilobyte!)
      round(3623651 / $this->exactTestCases['1 MB'], 2) . ' MB' => 3623651,
      // megabytes
      round(67234178751368124 / $this->exactTestCases['1 PB'], 2) . ' PB' => 67234178751368124,
      // petabytes
      round(2.3534682382112583E+26 / $this->exactTestCases['1 YB'], 2) . ' YB' => 2.3534682382112583E+26,
    );
  }

  /**
   * Checks that format_size() returns the expected string.
   */
  function testCommonFormatSize() {
    foreach (array(
      $this->exactTestCases,
      $this->roundedTestCases,
    ) as $test_cases) {
      foreach ($test_cases as $expected => $input) {
        $this
          ->assertEqual($result = format_size($input, NULL), $expected, $expected . ' == ' . $result . ' (' . $input . ' bytes)');
      }
    }
  }

  /**
   * Cross-tests Bytes::toInt() and format_size().
   */
  function testCommonParseSizeFormatSize() {
    foreach ($this->exactTestCases as $size) {
      $this
        ->assertEqual($size, $parsed_size = Bytes::toInt($string = format_size($size, NULL)), $size . ' == ' . $parsed_size . ' (' . $string . ')');
    }
  }

}

Classes

Name	Description
SizeUnitTest	Parse a predefined amount of bytes and compare the output with the expected value.