<?php
// $Id$

class CommonFormatSizeTestCase extends DrupalWebTestCase {

  /**
   * Implementation of getInfo().
   */
  function getInfo() {
    return array(
      'name' => t('Format size test'),
      'description' => t('Parse a predefined amount of bytes and compare the output with the expected value.'),
      'group' => t('System')
    );
  }

  /**
   * Implementation of setUp().
   */
  function setUp() {
    $this->exact_test_cases = array(
      '1 byte'    => 1, // byte
      '1 KB'      => 1000, // kilobyte
      '1 MB'      => 1000000, // megabyte
      '1 GB'      => 1000000000, // gigabyte
      '1 TB'      => 1000000000000, // terabyte
      '1 PB'      => 1000000000000000, // petabyte
      '1 EB'      => 1000000000000000000, // exabyte
      '1 ZB'      => 1000000000000000000000, // zettabyte
      '1 YB'      => 1000000000000000000000000, // yottabyte
    );
    $this->rounded_test_cases = array(
      '2 bytes'   => 2, // bytes
      '1 MB'      => 999999, // 1 MB (not 1000 kilobyte!)
      '3.62 MB'   => 3623651, // megabytes
      '67.23 PB'  => 67234178751368124, // petabytes
      '235.35 YB' => 235346823821125814962843827, // yottabytes
    );
    parent::setUp();
  }

  /**
   * testCommonFormatSize
   */
  function testCommonFormatSize() {
    foreach (array($this->exact_test_cases, $this->rounded_test_cases) as $test_cases) {
      foreach ($test_cases as $expected => $size) {
        $this->assertTrue(
          ($result = format_size($size, NULL)) == $expected,
          $expected . " == " . $result . " (" . $size . " bytes) %s"
        );
      }
    }
  }
}