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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * This file contains tests that walks a question through the manual graded
 * behaviour.
 *
 * @package    qbehaviour_manualgraded
 * @copyright  2009 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

defined('MOODLE_INTERNAL') || die();

global $CFG;
require_once(__DIR__ . '/../../../engine/lib.php');
require_once(__DIR__ . '/../../../engine/tests/helpers.php');

/**
 * Unit tests for the manual graded behaviour.
 *
 * @copyright  2009 The Open University
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class qbehaviour_manualgraded_walkthrough_testcase extends qbehaviour_walkthrough_test_base {
    public function test_manual_graded_essay() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);
        $this->check_current_output($this->get_contains_question_text_expectation($essay),
                $this->get_does_not_contain_feedback_expectation());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Verify.
        $this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);
        $this->check_current_output(
                new question_contains_tag_with_attribute('textarea', 'name',
                $this->quba->get_question_attempt($this->slot)->get_qt_field_name('answer')),
                $this->get_does_not_contain_feedback_expectation());

// Process the same data again, check it does not create a new step.
        $numsteps = $this->get_step_count();
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));
        $this->check_step_count($numsteps);

// Process different data, check it creates a new step.
        $this->process_submission(array('answer' => '', 'answerformat' => FORMAT_HTML));
        $this->check_step_count($numsteps + 1);
        $this->check_current_state(question_state::$todo);

// Change back, check it creates a new step.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));
        $this->check_step_count($numsteps + 2);

// Finish the attempt.
        $this->quba->finish_all_questions();

// Verify.
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);
        $this->assertEquals('This is my wonderful essay!',
                $this->quba->get_response_summary($this->slot));

// Process a manual comment.
        $this->manual_grade('Not good enough!', 10, FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrright);
        $this->check_current_mark(10);
        $this->check_current_output(
                new question_pattern_expectation('/' . preg_quote('Not good enough!', '/') . '/'));

// Now change the max mark for the question and regrade.
        $this->quba->regrade_question($this->slot, true, 1);

// Verify.
        $this->check_current_state(question_state::$mangrright);
        $this->check_current_mark(1);
    }

public function test_manual_graded_essay_not_answered() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Finish the attempt.
        $this->quba->finish_all_questions();

// Verify.
        $this->check_current_state(question_state::$gaveup);
        $this->check_current_mark(null);
        $this->assertEquals('',
                $this->quba->get_response_summary($this->slot));

// Process a manual comment.
        $this->manual_grade('Not good enough!', 1, FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(1);
        $this->check_current_output(
                new question_pattern_expectation('/' . preg_quote('Not good enough!') . '/'));

// Now change the max mark for the question and regrade.
        $this->quba->regrade_question($this->slot, true, 1);

// Verify.
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(0.1);
    }

public function test_manual_graded_truefalse() {

// Create a true-false question with correct answer true.
        $tf = test_question_maker::make_question('truefalse', 'true');
        $this->start_attempt_at_question($tf, 'manualgraded', 2);

// Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);
        $this->check_current_output(
                $this->get_contains_question_text_expectation($tf),
                $this->get_does_not_contain_feedback_expectation());

// Process a true answer and check the expected result.
        $this->process_submission(array('answer' => 1));

$this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);
        $this->check_current_output(
                $this->get_contains_tf_true_radio_expectation(true, true),
                $this->get_does_not_contain_correctness_expectation(),
                $this->get_does_not_contain_feedback_expectation());

// Finish the attempt.
        $this->quba->finish_all_questions();

// Verify.
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);
        $this->check_current_output(
                $this->get_does_not_contain_correctness_expectation(),
                $this->get_does_not_contain_specific_feedback_expectation());

// Process a manual comment.
        $this->manual_grade('Not good enough!', 1, FORMAT_HTML);

$this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(1);
        $this->check_current_output(
            $this->get_does_not_contain_correctness_expectation(),
            $this->get_does_not_contain_specific_feedback_expectation(),
            new question_pattern_expectation('/' . preg_quote('Not good enough!', '/') . '/'));
    }

public function test_manual_grade_ungraded_question() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 0);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Process a manual comment. Note: null mark is the whole point here.
        $this->manual_grade('Not good enough!', null, FORMAT_HTML);

// Verify.
        // I am pretty sure this next assertion is incorrect. We should change
        // the question state to indicate that this quetion has now been commented
        // on. However, that is tricky, because what if, after that, the mam mark
        // for the qusetions is changed. So, for now, this assertion verifies
        // the current behaviour.
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);
        $this->check_current_output(
                new question_pattern_expectation('/' . preg_quote('Not good enough!', '/') . '/'));
    }

public function test_manual_graded_ignore_repeat_sumbission() {
        // Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Verify.
        $this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);

// Finish the attempt.
        $this->quba->finish_all_questions();

// Process a blank manual comment. Ensure it does not change the state.
        $numsteps = $this->get_step_count();
        $this->manual_grade('', '', FORMAT_HTML);
        $this->check_step_count($numsteps);
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);

// Process a comment, but with the mark blank. Should be recorded, but
        // not change the mark.
        $this->manual_grade('I am not sure what grade to award.', '', FORMAT_HTML);
        $this->check_step_count($numsteps + 1);
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);
        $this->check_current_output(
                new question_pattern_expectation('/' .
                        preg_quote('I am not sure what grade to award.', '/') . '/'));

// Now grade it.
        $this->manual_grade('Pretty good!', '9.00000', FORMAT_HTML);
        $this->check_step_count($numsteps + 2);
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(9);
        $this->check_current_output(
                new question_pattern_expectation('/' . preg_quote('Pretty good!', '/') . '/'));

// Process the same data again, and make sure it does not add a step.
        $this->manual_grade('Pretty good!', '9.00000', FORMAT_HTML);
        $this->check_step_count($numsteps + 2);
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(9);

// Now set the mark back to blank.
        $this->manual_grade('Actually, I am not sure any more.', '', FORMAT_HTML);
        $this->check_step_count($numsteps + 3);
        $this->check_current_state(question_state::$needsgrading);
        $this->check_current_mark(null);
        $this->check_current_output(
                new question_pattern_expectation('/' .
                        preg_quote('Actually, I am not sure any more.', '/') . '/'));

$qa = $this->quba->get_question_attempt($this->slot);
        $this->assertEquals('Commented: Actually, I am not sure any more.',
                $qa->summarise_action($qa->get_last_step()));
    }

public function test_manual_graded_ignore_repeat_sumbission_commas() {
        // Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Check the initial state.
        $this->check_current_state(question_state::$todo);
        $this->check_current_mark(null);

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Verify.
        $this->check_current_state(question_state::$complete);
        $this->check_current_mark(null);

// Finish the attempt.
        $this->quba->finish_all_questions();

// Now grade it with a mark with a comma.
        $numsteps = $this->get_step_count();
        $this->manual_grade('Pretty good!', '9,00000', FORMAT_HTML);
        $this->check_step_count($numsteps + 1);
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(9);
        $qa = $this->get_question_attempt();
        $this->assertEquals('Manually graded 9 with comment: Pretty good!',
                $qa->summarise_action($qa->get_last_step()));
        $this->check_current_output(
                new question_pattern_expectation('/' . preg_quote('Pretty good!', '/') . '/'));

// Process the same mark with a dot. Verify it does not add a new step.
        $this->manual_grade('Pretty good!', '9.00000', FORMAT_HTML);
        $this->check_step_count($numsteps + 1);
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(9);
    }

public function test_manual_graded_essay_can_grade_0() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Process a blank comment and a grade of 0.
        $this->manual_grade('', 0, FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrwrong);
        $this->check_current_mark(0);
    }

public function test_manual_graded_change_comment_format() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Process an example comment and a grade of 0.
        $this->manual_grade('example', 0, FORMAT_HTML);
        // Verify the format is FORMAT_HTML.
        $this->check_comment('example', FORMAT_HTML);

// Process the same grade and comment with different format.
        $this->manual_grade('example', 0, FORMAT_MARKDOWN);
        // Verify the format is FORMAT_MARKDOWN.
        $this->check_comment('example', FORMAT_MARKDOWN);
    }

public function test_manual_graded_respects_display_options() {
        // This test is for MDL-43874. Manual comments were not respecting the
        // Display options for feedback.
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Process a comment and a grade.
        $this->manual_grade('This should only appear if the displya options allow it', 5, FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(5);

$this->displayoptions->manualcomment = question_display_options::HIDDEN;
        $this->check_output_does_not_contain('This should only appear if the displya options allow it');
        $this->displayoptions->manualcomment = question_display_options::VISIBLE;
        $this->check_output_contains('This should only appear if the displya options allow it');
    }

public function test_manual_graded_invalid_value_throws_exception() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Try to process a an invalid grade.
        $this->expectException('coding_exception');
        $this->manual_grade('Comment', 'frog', FORMAT_HTML);
    }

public function test_manual_graded_out_of_range_throws_exception() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));

// Finish the attempt.
        $this->quba->finish_all_questions();

// Try to process a an invalid grade.
        $this->expectException('coding_exception');
        $this->manual_grade('Comment', '10.1', FORMAT_HTML);
    }

public function test_manual_graded_displays_proper_comment_format () {

global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);

// Check the right model is being used.
        $this->assertEquals('manualgraded', $this->quba->get_question_attempt(
                $this->slot)->get_behaviour_name());

// Simulate some data submitted by the student.
        $this->process_submission(
                array(
                    'answer' => "A submission!",
                    'answerformat' => FORMAT_PLAIN
                )
        );

// Finish the attempt.
        $this->quba->finish_all_questions();

// Write a manual comment in markdown.
        $this->manual_grade("*one\n*two\n*three\n", 10, FORMAT_MARKDOWN);

// Check that feedback contains the original markdown format.
        $preg = '/<textarea [^>]+name="[^"]+-comment"[^>]+>\*one\n\*two\n\*three\n/';
        $this->displayoptions->manualcomment = question_display_options::EDITABLE;
        $this->check_current_output(
            new question_pattern_expectation($preg)
        );
    }

public function test_manual_grading_reshows_exactly_the_mark_input() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question graded out of 15 and attempt it.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 15);
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));
        $this->quba->finish_all_questions();

// Try to process a grade where the score will be stored rounded.
        $this->manual_grade('Comment', '5.0', FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(5);
        $this->displayoptions->manualcomment = question_display_options::EDITABLE;
        $this->render();
        $this->check_output_contains_text_input('-mark', '5.0');

// Rescale what the question is worth, and verify the display.
        $this->get_question_attempt()->set_max_mark(1);
        $this->render();
        $this->check_output_contains_text_input('-mark', '0.3333333');
    }

public function test_manual_grading_history_display() {
        global $PAGE;

// The current text editor depends on the users profile setting - so it needs a valid user.
        $this->setAdminUser();
        // Required to init a text editor.
        $PAGE->set_url('/');

// Create an essay question graded out of 15 and attempt it.
        $essay = test_question_maker::make_an_essay_question();
        $this->start_attempt_at_question($essay, 'deferredfeedback', 10);
        $this->process_submission(array('answer' => 'This is my wonderful essay!', 'answerformat' => FORMAT_HTML));
        $this->quba->finish_all_questions();

// Verify.
        $this->check_current_state(question_state::$needsgrading);

// Process an initial grade and comment.
        $this->manual_grade('First comment', '5.0', FORMAT_HTML);

// Process a second grade and comment.
        $this->manual_grade('Second comment', '7.0', FORMAT_HTML);

// Verify.
        $this->check_current_state(question_state::$mangrpartial);
        $this->check_current_mark(7);
        $this->displayoptions->history = question_display_options::VISIBLE;
        $this->render();
        $this->check_output_contains('Manually graded 5 with comment: First comment');
        $this->check_output_contains('Manually graded 7 with comment: Second comment');
    }
}