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

   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  namespace core;
  18  
  19  /**
  20   * Test case for recordset_walk.
  21   *
  22   * @package    core
  23   * @category   test
  24   * @copyright  2015 David Monllao
  25   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  26   */
  27  class recordset_walk_test extends \advanced_testcase {
  28  
  29      public function setUp(): void {
  30          parent::setUp();
  31          $this->resetAfterTest();
  32      }
  33  
  34      public function test_no_data() {
  35          global $DB;
  36  
  37          $recordset = $DB->get_recordset('assign');
  38          $walker = new \core\dml\recordset_walk($recordset, array($this, 'simple_callback'));
  39          $this->assertFalse($walker->valid());
  40  
  41          $count = 0;
  42          foreach ($walker as $data) {
  43              // No error here.
  44              $count++;
  45          }
  46          $this->assertEquals(0, $count);
  47          $walker->close();
  48      }
  49  
  50      public function test_simple_callback() {
  51          global $DB;
  52  
  53          /** @var \mod_assign_generator $generator */
  54          $generator = $this->getDataGenerator()->get_plugin_generator('mod_assign');
  55          $courses = array();
  56          for ($i = 0; $i < 10; $i++) {
  57              $courses[$i] = $generator->create_instance(array('course' => SITEID));
  58          }
  59  
  60          // Simple iteration.
  61          $recordset = $DB->get_recordset('assign');
  62          $walker = new \core\dml\recordset_walk($recordset, array($this, 'simple_callback'));
  63  
  64          $count = 0;
  65          foreach ($walker as $data) {
  66              // Checking that the callback is being executed on each iteration.
  67              $this->assertEquals($data->id . ' potatoes', $data->newfield);
  68              $count++;
  69          }
  70          $this->assertEquals(10, $count);
  71          // No exception if we double-close.
  72          $walker->close();
  73      }
  74  
  75      public function test_extra_params_callback() {
  76          global $DB;
  77  
  78          /** @var \mod_assign_generator $generator */
  79          $generator = $this->getDataGenerator()->get_plugin_generator('mod_assign');
  80          $courses = array();
  81          for ($i = 0; $i < 10; $i++) {
  82              $courses[$i] = $generator->create_instance(array('course' => SITEID));
  83          }
  84  
  85          // Iteration with extra callback arguments.
  86          $recordset = $DB->get_recordset('assign');
  87  
  88          $walker = new \core\dml\recordset_walk(
  89              $recordset,
  90              array($this, 'extra_callback'),
  91              array('brown' => 'onions')
  92          );
  93  
  94          $count = 0;
  95          foreach ($walker as $data) {
  96              // Checking that the callback is being executed on each
  97              // iteration and the param is being passed.
  98              $this->assertEquals('onions', $data->brown);
  99              $count++;
 100          }
 101          $this->assertEquals(10, $count);
 102  
 103          $walker->close();
 104      }
 105  
 106      /**
 107       * Simple callback requiring 1 row fields.
 108       *
 109       * @param \stdClass $data
 110       * @return \Traversable
 111       */
 112      public function simple_callback($data, $nothing = 'notpassed') {
 113          // Confirm nothing was passed.
 114          $this->assertEquals('notpassed', $nothing);
 115          $data->newfield = $data->id . ' potatoes';
 116          return $data;
 117      }
 118  
 119      /**
 120       * Callback requiring 1 row fields + other params.
 121       *
 122       * @param \stdClass $data
 123       * @param mixed $extra
 124       * @return \Traversable
 125       */
 126      public function extra_callback($data, $extra) {
 127          $data->brown = $extra['brown'];
 128          return $data;
 129      }
 130  }