assFormulaQuestionTest.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */
 
class assFormulaQuestionTest extends PHPUnit_Framework_TestCase
{
        protected $backupGlobals = FALSE;
 
        protected function setUp()
        {
                if (defined('ILIAS_PHPUNIT_CONTEXT'))
                {
                        include_once("./Services/PHPUnit/classes/class.ilUnitUtil.php");
                        ilUnitUtil::performInitialisation();
                }
                else
                {
                        chdir( dirname( __FILE__ ) );
                        chdir('../../../');
 
                        require_once './Services/UICore/classes/class.ilCtrl.php';
                        $ilCtrl_mock = $this->getMock('ilCtrl');
                        $ilCtrl_mock->expects( $this->any() )->method( 'saveParameter' );
                        $ilCtrl_mock->expects( $this->any() )->method( 'saveParameterByClass' );
                        global $ilCtrl;
                        $ilCtrl = $ilCtrl_mock;
 
                        require_once './Services/Language/classes/class.ilLanguage.php';
                        $lng_mock = $this->getMock('ilLanguage', array('txt'), array(), '', false);
                        //$lng_mock->expects( $this->once() )->method( 'txt' )->will( $this->returnValue('Test') );
                        global $lng;
                        $lng = $lng_mock;
 
                        $ilias_mock = new stdClass();
                        $ilias_mock->account = new stdClass();
                        $ilias_mock->account->id = 6;
                        $ilias_mock->account->fullname = 'Esther Tester';
                        global $ilias;
                        $ilias = $ilias_mock;
                }
        }
 
        public function test_instantiateObject_shouldReturnInstance()
        {
                // Arrange
                require_once './Modules/TestQuestionPool/classes/class.assFormulaQuestion.php';
 
                // Act
                $instance = new assFormulaQuestion();
 
                $this->assertInstanceOf('assFormulaQuestion', $instance);
        }
        
        public function testSimpleRatedFormulaQuestionCalculations(
                assFormulaQuestionResult $result, array $variables, array $results, $userResult, $userResultUnit, $expectedResult
        )
        {
                $isCorrect = $result->isCorrect($variables, $results, $userResult, $userResultUnit);
                $this->assertEquals($expectedResult, $isCorrect);
        }
 
        public function simpleRatedCalculationsData()
        {
                $points = 5;
                $precision = 2;
                
                $meter = new assFormulaQuestionUnit();
                $meter->initFormArray([
                        'unit_id' => 1,
                        'category' => 1,
                        'sequence' => 1,
                        'unit' => 'Meter',
                        'factor' => 1,
                        'baseunit_fi' => -1,
                        'baseunit_title' => ''
                ]);
                
                $centimeter = new assFormulaQuestionUnit();
                $centimeter->initFormArray([
                        'unit_id' => 2,
                        'category' => 1,
                        'sequence' => 2,
                        'unit' => 'Centimeter',
                        'factor' => 0.01,
                        'baseunit_fi' => 1,
                        'baseunit_title' => 'Meter'
                ]);
                
                $newtonmetre = new assFormulaQuestionUnit();
                $newtonmetre->initFormArray([
                        'unit_id' => 3,
                        'category' => 1,
                        'sequence' => 3,
                        'unit' => 'Newton Metre',
                        'factor' => 1,
                        'baseunit_fi' => -1,
                        'baseunit_title' => ''
                ]);
                
                $newtoncentimeter = new assFormulaQuestionUnit();
                $newtoncentimeter->initFormArray([
                        'unit_id' => 4,
                        'category' => 1,
                        'sequence' => 4,
                        'unit' => 'Newton Centimeter',
                        'factor' => 0.01,
                        'baseunit_fi' => 3,
                        'baseunit_title' => 'Newton Metre'
                ]);
                
                $v1 = new assFormulaQuestionVariable('$v1', 1, 20, $newtonmetre, 1);
                $v2 = new assFormulaQuestionVariable('$v2', 1, 10, $centimeter, 1);
                $v1->setValue(19.6);
                $v1->setIntprecision(1);
                $v2->setValue(6.6);
                $v2->setIntprecision(1);
                
                $v3 = clone $v1;
                $v4 = clone $v2;
                $v3->setUnit(null);
                $v3->setVariable('$v3');
                $v4->setUnit(null);
                $v4->setVariable('$v4');
                
                $r1 = new assFormulaQuestionResult(
                        '$r1', 0, 0, 0, $newtoncentimeter, '$v1 * $v2', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                $r2 = new assFormulaQuestionResult(
                        '$r2', 0, 0, 0, $newtonmetre, '$v1 * $v2', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                $r3 = new assFormulaQuestionResult(
                        '$r3', 0, 0, 0, null, '$v1 * $v2', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                $r4 = new assFormulaQuestionResult(
                        '$r4', 0, 0, 0, null, '$v1 * $v2', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                $r5 = new assFormulaQuestionResult(
                        '$r5', 0, 0, 0, null, '$v1 * $v2', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                $r6 = new assFormulaQuestionResult(
                        '$r6', 0, 0, 0, null, '$v3 * $v4', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_DEC
                );
                
                // RESULT_FRAC
                $v5 = new assFormulaQuestionVariable('$v5', 1, 20, null, 1);
                $v6 = new assFormulaQuestionVariable('$v6', 1, 10, null, 1);
                $v5->setValue(1);
                $v6->setValue(3);
                
                $v7 = new assFormulaQuestionVariable('$v7', 1, 20, null, 1);
                $v8 = new assFormulaQuestionVariable('$v8', 1, 10, null, 1);
                $v7->setValue(2);
                $v8->setValue(4);
                
                $r7 = new assFormulaQuestionResult(
                        '$r7', 0, 0, 0, null, '$v5/$v6', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_FRAC
                );
                
                $r8 = new assFormulaQuestionResult(
                        '$r8', 0, 0, 0, null, '$v7/$v8', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_FRAC
                );
                
                // RESULT_CO_FRAC
                $v9 = clone $v7;
                $v9->setVariable('$v9');
                $v10 = clone $v8;
                $v10->setVariable('$v10');
                
                $v11 = clone $v7;
                $v11->setVariable('$v11');
                $v12 = clone $v8;
                $v12->setVariable('$v12');
                
                $r9 = new assFormulaQuestionResult(
                        '$r9', 0, 0, 0, null, '$v9/$v10', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_CO_FRAC
                );
                
                $r10 = new assFormulaQuestionResult(
                        '$r10', 0, 0, 0, null, '$v11/$v12', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_CO_FRAC
                );
                
                // RESULT_NO_SELECTION
                $v13 = new assFormulaQuestionVariable('$v13', 1, 20, null, 1);
                $v14 = new assFormulaQuestionVariable('$v14', 1, 10, null, 1);
                $v13->setValue(1);
                $v14->setValue(3);
                $r11 = new assFormulaQuestionResult(
                        '$r11', 0, 0, 0, null, '$v13/$v14', $points, $precision, true, 33, 34, 33, assFormulaQuestionResult::RESULT_NO_SELECTION);
                
                $v15 = new assFormulaQuestionVariable('$v15', 200, 800, null, 0);
                $v16 = new assFormulaQuestionVariable('$v16', 50, 250, null, 0);
                $v17 = new assFormulaQuestionVariable('$v17', 3, 18, null, 0);
                $v15->setIntprecision(25);
                $v16->setIntprecision(5);
                $v17->setIntprecision(1);
                $v15->setValue(225);
                $v16->setValue(85);
                $v17->setValue(10);
                $r12 = new assFormulaQuestionResult(
                        '$r12', 0, 0, 0, null, '1/(2*pi)*sqrt($v16*1000/$v15)+$v17-$v17', $points, 1, true, 33, 34, 33, assFormulaQuestionResult::RESULT_NO_SELECTION
                );
                
                $variables = [
                        $v1->getVariable() => $v1,
                        $v2->getVariable() => $v2,
                        $v3->getVariable() => $v3,
                        $v4->getVariable() => $v4,
                        $v5->getVariable() => $v5,
                        $v6->getVariable() => $v6,
                        $v7->getVariable() => $v7,
                        $v8->getVariable() => $v8,
                        $v9->getVariable() => $v9,
                        $v10->getVariable() => $v10,
                        $v11->getVariable() => $v11,
                        $v12->getVariable() => $v12,
                        $v13->getVariable() => $v13,
                        $v14->getVariable() => $v14,
                        $v15->getVariable() => $v15,
                        $v16->getVariable() => $v16,
                        $v17->getVariable() => $v17,
                ];
                
                $results = [
                        $r1->getResult() => $r1,
                        $r2->getResult() => $r2,
                        $r3->getResult() => $r3,
                        $r4->getResult() => $r4,
                        $r5->getResult() => $r5,
                        $r6->getResult() => $r6,
                        $r7->getResult() => $r7,
                        $r8->getResult() => $r8,
                        $r9->getResult() => $r9,
                        $r10->getResult() => $r10,
                        $r11->getResult() => $r11,
                        $r12->getResult() => $r12,
                ];
                
                return [
                        //result, all variables, all results, user solution, unit chosen by user for solution
                        [$r1, $variables, $results, '129.36', $newtoncentimeter, true],
                        [$r2, $variables, $results, '1.29', $newtonmetre, true],
                        [$r3, $variables, $results, '1.29', $newtonmetre, true],
                        [$r4, $variables, $results, '129.36', $newtoncentimeter, true],
                        [$r5, $variables, $results, '1.29', null, true],
                        [$r6, $variables, $results, '129.36', null, true],
                        // RESULT_FRAC
                        [$r7, $variables, $results, '1/3', null, true],
                        [$r8, $variables, $results, '4/8', null, true],
                        // RESULT_CO_FRAC
                        [$r9, $variables, $results, '1/2', null, true],
                        [$r10, $variables, $results, '4/8', null, false],
                        // RESULT_NO_SELECTION
                        [$r11, $variables, $results, '1/3', null, true],
                        // Test for #22381
                        [$r12, $variables, $results, '3.1', null, true],
                ];
        }
}