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   1  <?php
   2  
   3  if (!defined('MOODLE_INTERNAL')) {
   4      die('Direct access to this script is forbidden.');    ///  It must be included from a Moodle page
   5  }
   6  
   7  require_once($CFG->libdir . '/mathslib.php');
   8  
   9  /**
  10   * Unit tests of mathslib wrapper and underlying EvalMath library.
  11   *
  12   * @author Petr Skoda (skodak)
  13   * @version $Id: testmathslib.php,v 1.6 2007/06/18 13:43:40 skodak Exp $
  14   */
  15  class mathsslib_test extends UnitTestCase {
  16  
  17      /**
  18       * Tests the basic formula evaluation
  19       */
  20      function test__basic() {
  21          $formula = new calc_formula('=1+2');
  22          $res = $formula->evaluate();
  23          $this->assertEqual($res, 3, '3+1 is: %s');
  24      }
  25  
  26      /**
  27       * Tests the formula params
  28       */
  29      function test__params() {
  30          $formula = new calc_formula('=a+b+c', array('a'=>10,'b'=>20,'c'=>30));
  31          $res = $formula->evaluate();
  32          $this->assertEqual($res, 60, '10+20+30 is: %s');
  33      }
  34  
  35      /**
  36       * Tests the changed params
  37       */
  38      function test__changing_params() {
  39          $formula = new calc_formula('=a+b+c', array('a'=>10,'b'=>20,'c'=>30));
  40          $res = $formula->evaluate();
  41          $this->assertEqual($res, 60, '10+20+30 is: %s');
  42          $formula->set_params(array('a'=>1,'b'=>2,'c'=>3));
  43          $res = $formula->evaluate();
  44          $this->assertEqual($res, 6, 'changed params 1+2+3 is: %s');
  45      }
  46  
  47      /**
  48       * Tests the spreadsheet emulation function in formula
  49       */
  50      function test__calc_function() {
  51          $formula = new calc_formula('=sum(a,b,c)', array('a'=>10,'b'=>20,'c'=>30));
  52          $res = $formula->evaluate();
  53          $this->assertEqual($res, 60, 'sum(a,b,c) is: %s');
  54      }
  55  
  56      /**
  57       * Tests the min and max functions
  58       */
  59      function test__minmax_function() {
  60          $formula = new calc_formula('=min(a,b,c)', array('a'=>10,'b'=>20,'c'=>30));
  61          $res = $formula->evaluate();
  62          $this->assertEqual($res, 10, 'minimum is: %s');
  63          $formula = new calc_formula('=max(a,b,c)', array('a'=>10,'b'=>20,'c'=>30));
  64          $res = $formula->evaluate();
  65          $this->assertEqual($res, 30, 'maximum is: %s');
  66      }
  67  
  68      /**
  69       * Tests special chars
  70       */
  71      function test__specialchars() {
  72          $formula = new calc_formula('=gi1 + gi2 + gi11', array('gi1'=>10,'gi2'=>20,'gi11'=>30));
  73          $res = $formula->evaluate();
  74          $this->assertEqual($res, 60, 'sum is: %s');
  75      }
  76  
  77  }
  78  
  79  ?>