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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace core_question;
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use core_question\statistics\questions\calculated_question_summary;
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/**
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* Class core_question_calculated_question_summary_testcase
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*
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* @package core_question
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* @category test
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* @copyright 2018 Shamim Rezaie <shamim@moodle.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class calculated_question_summary_test extends \advanced_testcase {
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/**
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* Provider for test_get_min_max_of.
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*
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* @return array
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*/
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public function get_min_max_provider() {
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return [
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'negative number and null' => [
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[
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(object)['questionid' => 1, 'index' => 2],
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(object)['questionid' => 2, 'index' => -7],
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(object)['questionid' => 3, 'index' => null],
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(object)['questionid' => 4, 'index' => 12],
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],
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[-7, 12]
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],
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'null and negative number' => [
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[
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(object)['questionid' => 1, 'index' => 2],
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(object)['questionid' => 2, 'index' => null],
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(object)['questionid' => 3, 'index' => -7],
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(object)['questionid' => 4, 'index' => 12],
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],
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[-7, 12]
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],
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'negative number and null as maximum' => [
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[
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(object)['questionid' => 1, 'index' => -2],
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(object)['questionid' => 2, 'index' => null],
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(object)['questionid' => 3, 'index' => -7],
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],
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[-7, null]
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],
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'zero and null' => [
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[
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(object)['questionid' => 1, 'index' => 2],
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(object)['questionid' => 2, 'index' => 0],
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(object)['questionid' => 3, 'index' => null],
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(object)['questionid' => 4, 'index' => 12],
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],
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[0, 12]
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],
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'null as minimum' => [
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[
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(object)['questionid' => 1, 'index' => 2],
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(object)['questionid' => 2, 'index' => null],
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(object)['questionid' => 3, 'index' => 12],
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],
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[null, 12]
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],
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'null and null' => [
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[
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(object)['questionid' => 1, 'index' => 2],
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(object)['questionid' => 2, 'index' => null],
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(object)['questionid' => 3, 'index' => null],
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],
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[null, 2]
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],
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];
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}
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/**
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* Unit test for get_min_max_of() method.
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*
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* @dataProvider get_min_max_provider
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*/
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public function test_get_min_max_of($subqstats, $expected): void {
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$calculatedsummary = new calculated_question_summary(null, null, $subqstats);
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$res = $calculatedsummary->get_min_max_of('index');
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$this->assertEquals($expected, $res);
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}
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/**
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* Provider for test_get_min_max_of.
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*
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* @return array
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*/
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public function get_sd_min_max_provider() {
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return [
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'null and number' => [
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[
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(object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
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(object)['questionid' => 2, 'sd' => null, 'maxmark' => 1],
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(object)['questionid' => 3, 'sd' => 0.1049, 'maxmark' => 1],
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(object)['questionid' => 4, 'sd' => 0.12, 'maxmark' => 1],
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],
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[null, 0.4]
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],
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'null and zero' => [
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[
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(object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
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(object)['questionid' => 2, 'sd' => null, 'maxmark' => 1],
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(object)['questionid' => 3, 'sd' => 0, 'maxmark' => 1],
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(object)['questionid' => 4, 'sd' => 0.12, 'maxmark' => 1],
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],
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[0, 0.4]
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],
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'zero mark' => [
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[
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(object)['questionid' => 1, 'sd' => 0, 'maxmark' => 0],
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(object)['questionid' => 2, 'sd' => 0.1049, 'maxmark' => 1],
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],
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[null, 0.1049]
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],
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'nonzero and nonzero' => [
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[
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(object)['questionid' => 1, 'sd' => 0.2, 'maxmark' => 0.5],
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(object)['questionid' => 2, 'sd' => 0.7, 'maxmark' => 2],
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],
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[0.35, 0.4]
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],
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'zero max mark as loaded from the DB' => [
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[
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(object)['questionid' => 1, 'sd' => '0.0000000000', 'maxmark' => '0.0000000'],
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(object)['questionid' => 2, 'sd' => '0.0000000000', 'maxmark' => '0.0000000'],
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],
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[null, null]
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],
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];
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}
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/**
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* Unit test for get_min_max_of_sd() method.
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*
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* @dataProvider get_sd_min_max_provider
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*/
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public function test_get_min_max_of_sd($subqstats, $expected): void {
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$calculatedsummary = new calculated_question_summary(null, null, $subqstats);
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$res = $calculatedsummary->get_min_max_of('sd');
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$this->assertEquals($expected, $res);
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}
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}
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