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See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.

Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403] [Versions 39 and 310]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * This file contains tests for the {@link question_utils} class.
  19   *
  20   * @package    moodlecore
  21   * @subpackage questionengine
  22   * @copyright  2010 The Open University
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  global $CFG;
  30  require_once (__DIR__ . '/../lib.php');
  31  
  32  
  33  /**
  34   * Unit tests for the {@link question_utils} class.
  35   *
  36   * @copyright  2010 The Open University
  37   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38   */
  39  class question_utils_test extends advanced_testcase {
  40      public function test_arrays_have_same_keys_and_values() {
  41          $this->assertTrue(question_utils::arrays_have_same_keys_and_values(
  42                  array(),
  43                  array()));
  44          $this->assertTrue(question_utils::arrays_have_same_keys_and_values(
  45                  array('key' => 1),
  46                  array('key' => '1')));
  47          $this->assertFalse(question_utils::arrays_have_same_keys_and_values(
  48                  array(),
  49                  array('key' => 1)));
  50          $this->assertFalse(question_utils::arrays_have_same_keys_and_values(
  51                  array('key' => 2),
  52                  array('key' => 1)));
  53          $this->assertFalse(question_utils::arrays_have_same_keys_and_values(
  54                  array('key' => 1),
  55                  array('otherkey' => 1)));
  56          $this->assertFalse(question_utils::arrays_have_same_keys_and_values(
  57                  array('sub0' => '2', 'sub1' => '2', 'sub2' => '3', 'sub3' => '1'),
  58                  array('sub0' => '1', 'sub1' => '2', 'sub2' => '3', 'sub3' => '1')));
  59      }
  60  
  61      public function test_arrays_same_at_key() {
  62          $this->assertTrue(question_utils::arrays_same_at_key(
  63                  array(),
  64                  array(),
  65                  'key'));
  66          $this->assertFalse(question_utils::arrays_same_at_key(
  67                  array(),
  68                  array('key' => 1),
  69                  'key'));
  70          $this->assertFalse(question_utils::arrays_same_at_key(
  71                  array('key' => 1),
  72                  array(),
  73                  'key'));
  74          $this->assertTrue(question_utils::arrays_same_at_key(
  75                  array('key' => 1),
  76                  array('key' => 1),
  77                  'key'));
  78          $this->assertFalse(question_utils::arrays_same_at_key(
  79                  array('key' => 1),
  80                  array('key' => 2),
  81                  'key'));
  82          $this->assertTrue(question_utils::arrays_same_at_key(
  83                  array('key' => 1),
  84                  array('key' => '1'),
  85                  'key'));
  86          $this->assertFalse(question_utils::arrays_same_at_key(
  87                  array('key' => 0),
  88                  array('key' => ''),
  89                  'key'));
  90          $this->assertFalse(question_utils::arrays_same_at_key(
  91                  array(),
  92                  array('key' => ''),
  93                  'key'));
  94      }
  95  
  96      public function test_arrays_same_at_key_missing_is_blank() {
  97          $this->assertTrue(question_utils::arrays_same_at_key_missing_is_blank(
  98                  array(),
  99                  array(),
 100                  'key'));
 101          $this->assertFalse(question_utils::arrays_same_at_key_missing_is_blank(
 102                  array(),
 103                  array('key' => 1),
 104                  'key'));
 105          $this->assertFalse(question_utils::arrays_same_at_key_missing_is_blank(
 106                  array('key' => 1),
 107                  array(),
 108                  'key'));
 109          $this->assertTrue(question_utils::arrays_same_at_key_missing_is_blank(
 110                  array('key' => 1),
 111                  array('key' => 1),
 112                  'key'));
 113          $this->assertFalse(question_utils::arrays_same_at_key_missing_is_blank(
 114                  array('key' => 1),
 115                  array('key' => 2),
 116                  'key'));
 117          $this->assertTrue(question_utils::arrays_same_at_key_missing_is_blank(
 118                  array('key' => 1),
 119                  array('key' => '1'),
 120                  'key'));
 121          $this->assertFalse(question_utils::arrays_same_at_key_missing_is_blank(
 122                  array('key' => '0'),
 123                  array('key' => ''),
 124                  'key'));
 125          $this->assertTrue(question_utils::arrays_same_at_key_missing_is_blank(
 126                  array(),
 127                  array('key' => ''),
 128                  'key'));
 129      }
 130  
 131      public function test_arrays_same_at_key_integer() {
 132          $this->assertTrue(question_utils::arrays_same_at_key_integer(
 133                  array(),
 134                  array(),
 135                  'key'));
 136          $this->assertFalse(question_utils::arrays_same_at_key_integer(
 137                  array(),
 138                  array('key' => 1),
 139                  'key'));
 140          $this->assertFalse(question_utils::arrays_same_at_key_integer(
 141                  array('key' => 1),
 142                  array(),
 143                  'key'));
 144          $this->assertTrue(question_utils::arrays_same_at_key_integer(
 145                  array('key' => 1),
 146                  array('key' => 1),
 147                  'key'));
 148          $this->assertFalse(question_utils::arrays_same_at_key_integer(
 149                  array('key' => 1),
 150                  array('key' => 2),
 151                  'key'));
 152          $this->assertTrue(question_utils::arrays_same_at_key_integer(
 153                  array('key' => 1),
 154                  array('key' => '1'),
 155                  'key'));
 156          $this->assertTrue(question_utils::arrays_same_at_key_integer(
 157                  array('key' => '0'),
 158                  array('key' => ''),
 159                  'key'));
 160          $this->assertTrue(question_utils::arrays_same_at_key_integer(
 161                  array(),
 162                  array('key' => 0),
 163                  'key'));
 164      }
 165  
 166      public function test_int_to_roman() {
 167          $this->assertSame('i', question_utils::int_to_roman(1));
 168          $this->assertSame('iv', question_utils::int_to_roman(4));
 169          $this->assertSame('v', question_utils::int_to_roman(5));
 170          $this->assertSame('vi', question_utils::int_to_roman(6));
 171          $this->assertSame('ix', question_utils::int_to_roman(9));
 172          $this->assertSame('xi', question_utils::int_to_roman(11));
 173          $this->assertSame('xlviii', question_utils::int_to_roman(48));
 174          $this->assertSame('lxxxvii', question_utils::int_to_roman(87));
 175          $this->assertSame('c', question_utils::int_to_roman(100));
 176          $this->assertSame('mccxxxiv', question_utils::int_to_roman(1234));
 177          $this->assertSame('mmmcmxcix', question_utils::int_to_roman(3999));
 178      }
 179  
 180      public function test_int_to_letter() {
 181          $this->assertEquals('A', question_utils::int_to_letter(1));
 182          $this->assertEquals('B', question_utils::int_to_letter(2));
 183          $this->assertEquals('C', question_utils::int_to_letter(3));
 184          $this->assertEquals('D', question_utils::int_to_letter(4));
 185          $this->assertEquals('E', question_utils::int_to_letter(5));
 186          $this->assertEquals('F', question_utils::int_to_letter(6));
 187          $this->assertEquals('G', question_utils::int_to_letter(7));
 188          $this->assertEquals('H', question_utils::int_to_letter(8));
 189          $this->assertEquals('I', question_utils::int_to_letter(9));
 190          $this->assertEquals('J', question_utils::int_to_letter(10));
 191          $this->assertEquals('K', question_utils::int_to_letter(11));
 192          $this->assertEquals('L', question_utils::int_to_letter(12));
 193          $this->assertEquals('M', question_utils::int_to_letter(13));
 194          $this->assertEquals('N', question_utils::int_to_letter(14));
 195          $this->assertEquals('O', question_utils::int_to_letter(15));
 196          $this->assertEquals('P', question_utils::int_to_letter(16));
 197          $this->assertEquals('Q', question_utils::int_to_letter(17));
 198          $this->assertEquals('R', question_utils::int_to_letter(18));
 199          $this->assertEquals('S', question_utils::int_to_letter(19));
 200          $this->assertEquals('T', question_utils::int_to_letter(20));
 201          $this->assertEquals('U', question_utils::int_to_letter(21));
 202          $this->assertEquals('V', question_utils::int_to_letter(22));
 203          $this->assertEquals('W', question_utils::int_to_letter(23));
 204          $this->assertEquals('X', question_utils::int_to_letter(24));
 205          $this->assertEquals('Y', question_utils::int_to_letter(25));
 206          $this->assertEquals('Z', question_utils::int_to_letter(26));
 207      }
 208  
 209      public function test_int_to_roman_too_small() {
 210          $this->expectException(moodle_exception::class);
 211          question_utils::int_to_roman(0);
 212      }
 213  
 214      public function test_int_to_roman_too_big() {
 215          $this->expectException(moodle_exception::class);
 216          question_utils::int_to_roman(4000);
 217      }
 218  
 219      public function test_int_to_roman_not_int() {
 220          $this->expectException(moodle_exception::class);
 221          question_utils::int_to_roman(1.5);
 222      }
 223  
 224      public function test_clean_param_mark() {
 225          $this->assertNull(question_utils::clean_param_mark(null));
 226          $this->assertNull(question_utils::clean_param_mark('frog'));
 227          $this->assertSame('', question_utils::clean_param_mark(''));
 228          $this->assertSame(0.0, question_utils::clean_param_mark('0'));
 229          $this->assertSame(1.5, question_utils::clean_param_mark('1.5'));
 230          $this->assertSame(1.5, question_utils::clean_param_mark('1,5'));
 231          $this->assertSame(-1.5, question_utils::clean_param_mark('-1.5'));
 232          $this->assertSame(-1.5, question_utils::clean_param_mark('-1,5'));
 233      }
 234  }