Proyectos de Subversion Moodle

<?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/>.

namespace tool_policy;

use tool_policy\test\helper;

/**

 * Unit tests for the {@link \tool_policy\api} class.

 *

 * @package   tool_policy

 * @category  test

 * @copyright 2018 David Mudrak <david@moodle.com>

 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class api_test extends \advanced_testcase {

    /**

     * Test the common operations with a policy document and its versions.

     */

    public function test_policy_document_life_cycle() {

        $this->resetAfterTest();

        $this->setAdminUser();

        // Prepare the form data for adding a new policy document.

        $formdata = api::form_policydoc_data(new policy_version(0));

        $this->assertObjectHasProperty('name', $formdata);

        $this->assertArrayHasKey('text', $formdata->summary_editor);

        $this->assertArrayHasKey('format', $formdata->content_editor);

        // Save the form.

        $formdata->name = 'Test terms & conditions';

        $formdata->type = policy_version::TYPE_OTHER;

        $policy = api::form_policydoc_add($formdata);

        $record = $policy->to_record();

        $this->assertNotEmpty($record->id);

        $this->assertNotEmpty($record->policyid);

        $this->assertNotEmpty($record->timecreated);

        $this->assertNotEmpty($record->timemodified);

        $this->assertNotNull($record->name);

        $this->assertNotNull($record->summary);

        $this->assertNotNull($record->summaryformat);

        $this->assertNotNull($record->content);

        $this->assertNotNull($record->contentformat);

        // Update the policy document version.

        $formdata = api::form_policydoc_data($policy);

        $formdata->revision = '*** Unit test ***';

        $formdata->summary_editor['text'] = '__Just a summary__';

        $formdata->summary_editor['format'] = FORMAT_MARKDOWN;

        $formdata->content_editor['text'] = '### Just a test ###';

        $formdata->content_editor['format'] = FORMAT_MARKDOWN;

        $updated = api::form_policydoc_update_overwrite($formdata);

        $this->assertEquals($policy->get('id'), $updated->get('id'));

        $this->assertEquals($policy->get('policyid'), $updated->get('policyid'));

        // Save form as a new version.

        $formdata = api::form_policydoc_data($policy);

        $formdata->name = 'New terms & conditions';

        $formdata->revision = '*** Unit test 2 ***';

        $formdata->summary_editor['text'] = '<strong>Yet another summary</strong>';

        $formdata->summary_editor['format'] = FORMAT_MOODLE;

        $formdata->content_editor['text'] = '<h3>Yet another test</h3>';

        $formdata->content_editor['format'] = FORMAT_HTML;

        $new = api::form_policydoc_update_new($formdata);

        $this->assertNotEquals($policy->get('id'), $new->get('id'));

        $this->assertEquals($policy->get('policyid'), $new->get('policyid'));

        // Add yet another policy document.

        $formdata = api::form_policydoc_data(new policy_version(0));

        $formdata->name = 'Privacy terms';

        $formdata->type = policy_version::TYPE_PRIVACY;

        $another = api::form_policydoc_add($formdata);

        // Get the list of all policies and their versions.

        $docs = api::list_policies();

        $this->assertEquals(2, count($docs));

        // Get just one policy and all its versions.

        $docs = api::list_policies($another->get('policyid'));

        $this->assertEquals(1, count($docs));

        // Activate a policy.

        $this->assertEquals(0, count(api::list_current_versions()));

        api::make_current($updated->get('id'));

        $current = api::list_current_versions();

        $this->assertEquals(1, count($current));

        $first = reset($current);

        $this->assertEquals('Test terms & conditions', $first->name);

        // Activate another policy version.

        api::make_current($new->get('id'));

        $current = api::list_current_versions();

        $this->assertEquals(1, count($current));

        $first = reset($current);

        $this->assertEquals('New terms & conditions', $first->name);

        // Inactivate the policy.

        api::inactivate($new->get('policyid'));

        $this->assertEmpty(api::list_current_versions());

        $archived = api::get_policy_version($new->get('id'));

        $this->assertEquals(policy_version::STATUS_ARCHIVED, $archived->status);

        // Create a new draft from an archived version.

        $draft = api::revert_to_draft($archived->id);

        $draft = api::get_policy_version($draft->get('id'));

        $archived = api::get_policy_version($archived->id);

        $this->assertEmpty(api::list_current_versions());

        $this->assertNotEquals($draft->id, $archived->id);

        $this->assertEquals(policy_version::STATUS_DRAFT, $draft->status);

        $this->assertEquals(policy_version::STATUS_ARCHIVED, $archived->status);

        // An active policy can't be set to draft.

        api::make_current($draft->id);

        $this->expectException('coding_exception');

        $this->expectExceptionMessage('Version not found or is not archived');

        api::revert_to_draft($draft->id);

    }

    /**

     * Test changing the sort order of the policy documents.

     */

    public function test_policy_sortorder() {

        global $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $formdata = api::form_policydoc_data(new policy_version(0));

        $formdata->name = 'Policy1';

        $formdata->summary_editor = ['text' => 'P1 summary', 'format' => FORMAT_HTML, 'itemid' => 0];

        $formdata->content_editor = ['text' => 'P1 content', 'format' => FORMAT_HTML, 'itemid' => 0];

        $policy1 = api::form_policydoc_add($formdata);

        $policy1sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy1->get('policyid')]);

        $formdata = api::form_policydoc_data(new policy_version(0));

        $formdata->name = 'Policy2';

        $formdata->summary_editor = ['text' => 'P2 summary', 'format' => FORMAT_HTML, 'itemid' => 0];

        $formdata->content_editor = ['text' => 'P2 content', 'format' => FORMAT_HTML, 'itemid' => 0];

        $policy2 = api::form_policydoc_add($formdata);

        $policy2sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy2->get('policyid')]);

        $this->assertTrue($policy1sortorder < $policy2sortorder);

        $formdata = api::form_policydoc_data(new policy_version(0));

        $formdata->name = 'Policy3';

        $formdata->summary_editor = ['text' => 'P3 summary', 'format' => FORMAT_HTML, 'itemid' => 0];

        $formdata->content_editor = ['text' => 'P3 content', 'format' => FORMAT_HTML, 'itemid' => 0];

        $policy3 = api::form_policydoc_add($formdata);

        $policy3sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy3->get('policyid')]);

        $this->assertTrue($policy1sortorder < $policy2sortorder);

        $this->assertTrue($policy2sortorder < $policy3sortorder);

        api::move_up($policy3->get('policyid'));

        $policy1sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy1->get('policyid')]);

        $policy2sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy2->get('policyid')]);

        $policy3sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy3->get('policyid')]);

        $this->assertTrue($policy1sortorder < $policy3sortorder);

        $this->assertTrue($policy3sortorder < $policy2sortorder);

        api::move_down($policy1->get('policyid'));

        $policy1sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy1->get('policyid')]);

        $policy2sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy2->get('policyid')]);

        $policy3sortorder = $DB->get_field('tool_policy', 'sortorder', ['id' => $policy3->get('policyid')]);

        $this->assertTrue($policy3sortorder < $policy1sortorder);

        $this->assertTrue($policy1sortorder < $policy2sortorder);

        $orderedlist = [];

        foreach (api::list_policies() as $policy) {

            $orderedlist[] = $policy->id;

        }

        $this->assertEquals([$policy3->get('policyid'), $policy1->get('policyid'), $policy2->get('policyid')], $orderedlist);

    }

    /**

     * Test that list of policies can be filtered by audience

     */

    public function test_list_policies_audience() {

        $this->resetAfterTest();

        $this->setAdminUser();

        $policy1 = helper::add_policy(['audience' => policy_version::AUDIENCE_LOGGEDIN]);

        $policy2 = helper::add_policy(['audience' => policy_version::AUDIENCE_GUESTS]);

        $policy3 = helper::add_policy();

        api::make_current($policy1->get('id'));

        api::make_current($policy2->get('id'));

        api::make_current($policy3->get('id'));

        $list = array_map(function ($version) {

            return $version->policyid;

        }, api::list_current_versions());

        $this->assertEquals([$policy1->get('policyid'), $policy2->get('policyid'), $policy3->get('policyid')],

            array_values($list));

        $ids = api::get_current_versions_ids();

        $this->assertEquals([$policy1->get('policyid') => $policy1->get('id'),

            $policy2->get('policyid') => $policy2->get('id'),

            $policy3->get('policyid') => $policy3->get('id')], $ids);

        $list = array_map(function ($version) {

            return $version->policyid;

        }, api::list_current_versions(policy_version::AUDIENCE_LOGGEDIN));

        $this->assertEquals([$policy1->get('policyid'), $policy3->get('policyid')], array_values($list));

        $ids = api::get_current_versions_ids(policy_version::AUDIENCE_LOGGEDIN);

        $this->assertEquals([$policy1->get('policyid') => $policy1->get('id'),

            $policy3->get('policyid') => $policy3->get('id')], $ids);

        $list = array_map(function ($version) {

            return $version->policyid;

        }, api::list_current_versions(policy_version::AUDIENCE_GUESTS));

        $this->assertEquals([$policy2->get('policyid'), $policy3->get('policyid')], array_values($list));

        $ids = api::get_current_versions_ids(policy_version::AUDIENCE_GUESTS);

        $this->assertEquals([$policy2->get('policyid') => $policy2->get('id'),

            $policy3->get('policyid') => $policy3->get('id')], $ids);

    }

    /**

     * Test behaviour of the {@link api::can_user_view_policy_version()} method.

     */

    public function test_can_user_view_policy_version() {

        global $CFG;

        $this->resetAfterTest();

        $this->setAdminUser();

        $child = $this->getDataGenerator()->create_user();

        $parent = $this->getDataGenerator()->create_user();

        $this->getDataGenerator()->create_user();

        $officer = $this->getDataGenerator()->create_user();

        $manager = $this->getDataGenerator()->create_user();

        $syscontext = \context_system::instance();

        $childcontext = \context_user::instance($child->id);

        $roleminorid = create_role('Digital minor', 'digiminor', 'Not old enough to accept site policies themselves');

        $roleparentid = create_role('Parent', 'parent', 'Can accept policies on behalf of their child');

        $roleofficerid = create_role('Policy officer', 'policyofficer', 'Can see all acceptances but can\'t edit policy documents');

        $rolemanagerid = create_role('Policy manager', 'policymanager', 'Can manage policy documents');

        assign_capability('tool/policy:accept', CAP_PROHIBIT, $roleminorid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleparentid, $syscontext->id);

        assign_capability('tool/policy:viewacceptances', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:managedocs', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        role_assign($roleminorid, $child->id, $syscontext->id);

        // Becoming a parent is easy. Being a good one is difficult.

        role_assign($roleparentid, $parent->id, $childcontext->id);

        role_assign($roleofficerid, $officer->id, $syscontext->id);

        role_assign($rolemanagerid, $manager->id, $syscontext->id);

        accesslib_clear_all_caches_for_unit_testing();

        // Prepare a policy document with some versions.

        list($policy1, $policy2, $policy3) = helper::create_versions(3);

        // Normally users do not have access to policy drafts.

        $this->assertFalse(api::can_user_view_policy_version($policy1, null, $child->id));

        $this->assertFalse(api::can_user_view_policy_version($policy2, null, $parent->id));

        $this->assertFalse(api::can_user_view_policy_version($policy3, null, $CFG->siteguest));

        // Officers and managers have access even to drafts.

        $this->assertTrue(api::can_user_view_policy_version($policy1, null, $officer->id));

        $this->assertTrue(api::can_user_view_policy_version($policy3, null, $manager->id));

        // Current versions are public so that users can decide whether to even register on such a site.

        api::make_current($policy2->id);

        $policy1 = api::get_policy_version($policy1->id);

        $policy2 = api::get_policy_version($policy2->id);

        $policy3 = api::get_policy_version($policy3->id);

        $this->assertFalse(api::can_user_view_policy_version($policy1, null, $child->id));

        $this->assertTrue(api::can_user_view_policy_version($policy2, null, $child->id));

        $this->assertTrue(api::can_user_view_policy_version($policy2, null, $CFG->siteguest));

        $this->assertFalse(api::can_user_view_policy_version($policy3, null, $child->id));

        // Let the parent accept the policy on behalf of her child.

        $this->setUser($parent);

        api::accept_policies($policy2->id, $child->id);

        // Release a new version of the policy.

        api::make_current($policy3->id);

        $policy1 = api::get_policy_version($policy1->id);

        $policy2 = api::get_policy_version($policy2->id);

        $policy3 = api::get_policy_version($policy3->id);

        api::get_user_minors($parent->id);

        // They should now have access to the archived version (because they agreed) and the current one.

        $this->assertFalse(api::can_user_view_policy_version($policy1, null, $child->id));

        $this->assertFalse(api::can_user_view_policy_version($policy1, null, $parent->id));

        $this->assertTrue(api::can_user_view_policy_version($policy2, null, $child->id));

        $this->assertTrue(api::can_user_view_policy_version($policy2, null, $parent->id));

        $this->assertTrue(api::can_user_view_policy_version($policy3, null, $child->id));

        $this->assertTrue(api::can_user_view_policy_version($policy3, null, $parent->id));

    }

    /**

     * Test behaviour of the {@link api::can_accept_policies()} method.

     */

    public function test_can_accept_policies() {

        global $CFG;

        $this->resetAfterTest();

        $this->setAdminUser();

        $user = $this->getDataGenerator()->create_user();

        $child = $this->getDataGenerator()->create_user();

        $parent = $this->getDataGenerator()->create_user();

        $officer = $this->getDataGenerator()->create_user();

        $manager = $this->getDataGenerator()->create_user();

        $syscontext = \context_system::instance();

        $childcontext = \context_user::instance($child->id);

        $roleminorid = create_role('Digital minor', 'digiminor', 'Not old enough to accept site policies themselves');

        $roleparentid = create_role('Parent', 'parent', 'Can accept policies on behalf of their child');

        $roleofficerid = create_role('Policy officer', 'policyofficer', 'Can see all acceptances but can\'t edit policy documents');

        $rolemanagerid = create_role('Policy manager', 'policymanager', 'Can manage policy documents');

        assign_capability('tool/policy:accept', CAP_PROHIBIT, $roleminorid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleparentid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:viewacceptances', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        assign_capability('tool/policy:managedocs', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        role_assign($roleminorid, $child->id, $syscontext->id);

        role_assign($roleparentid, $parent->id, $childcontext->id);

        role_assign($roleofficerid, $officer->id, $syscontext->id);

        role_assign($rolemanagerid, $manager->id, $syscontext->id);

        accesslib_clear_all_caches_for_unit_testing();

        $policy1 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        $policy2 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        $policy3 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        $policy4 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        $mixed = [$policy1->id, $policy2->id, $policy3->id, $policy4->id];

        $compulsory = [$policy1->id, $policy2->id];

        $optional = [$policy3->id, $policy4->id];

        // Normally users can accept all policies.

        $this->setUser($user);

        $this->assertTrue(api::can_accept_policies($mixed));

        $this->assertTrue(api::can_accept_policies($compulsory));

        $this->assertTrue(api::can_accept_policies($optional));

        // Digital minors can be set to not be able to accept policies themselves.

        $this->setUser($child);

        $this->assertFalse(api::can_accept_policies($mixed));

        $this->assertFalse(api::can_accept_policies($compulsory));

        $this->assertFalse(api::can_accept_policies($optional));

        // The parent can accept optional policies on child's behalf.

        $this->setUser($parent);

        $this->assertTrue(api::can_accept_policies($mixed, $child->id));

        $this->assertTrue(api::can_accept_policies($compulsory, $child->id));

        $this->assertTrue(api::can_accept_policies($optional, $child->id));

        // Officers and managers can accept on other user's behalf.

        $this->setUser($officer);

        $this->assertTrue(api::can_accept_policies($mixed, $parent->id));

        $this->assertTrue(api::can_accept_policies($compulsory, $parent->id));

        $this->assertTrue(api::can_accept_policies($optional, $parent->id));

        $this->setUser($manager);

        $this->assertTrue(api::can_accept_policies($mixed, $parent->id));

        $this->assertTrue(api::can_accept_policies($compulsory, $parent->id));

        $this->assertTrue(api::can_accept_policies($optional, $parent->id));

    }

    /**

     * Test behaviour of the {@link api::can_decline_policies()} method.

     */

    public function test_can_decline_policies() {

        global $CFG;

        $this->resetAfterTest();

        $this->setAdminUser();

        $user = $this->getDataGenerator()->create_user();

        $child = $this->getDataGenerator()->create_user();

        $parent = $this->getDataGenerator()->create_user();

        $officer = $this->getDataGenerator()->create_user();

        $manager = $this->getDataGenerator()->create_user();

        $syscontext = \context_system::instance();

        $childcontext = \context_user::instance($child->id);

        $roleminorid = create_role('Digital minor', 'digiminor', 'Not old enough to accept site policies themselves');

        $roleparentid = create_role('Parent', 'parent', 'Can accept policies on behalf of their child');

        $roleofficerid = create_role('Policy officer', 'policyofficer', 'Can see all acceptances but can\'t edit policy documents');

        $rolemanagerid = create_role('Policy manager', 'policymanager', 'Can manage policy documents');

        assign_capability('tool/policy:accept', CAP_PROHIBIT, $roleminorid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleparentid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:viewacceptances', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        assign_capability('tool/policy:managedocs', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        role_assign($roleminorid, $child->id, $syscontext->id);

        role_assign($roleparentid, $parent->id, $childcontext->id);

        role_assign($roleofficerid, $officer->id, $syscontext->id);

        role_assign($rolemanagerid, $manager->id, $syscontext->id);

        accesslib_clear_all_caches_for_unit_testing();

        $policy1 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        $policy2 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        $policy3 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        $policy4 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        $mixed = [$policy1->id, $policy2->id, $policy3->id, $policy4->id];

        $compulsory = [$policy1->id, $policy2->id];

        $optional = [$policy3->id, $policy4->id];

        // Normally users can decline only optional policies.

        $this->setUser($user);

        $this->assertFalse(api::can_decline_policies($mixed));

        $this->assertFalse(api::can_decline_policies($compulsory));

        $this->assertTrue(api::can_decline_policies($optional));

        // If they can't accept them, they can't decline them too.

        $this->setUser($child);

        $this->assertFalse(api::can_decline_policies($mixed));

        $this->assertFalse(api::can_decline_policies($compulsory));

        $this->assertFalse(api::can_decline_policies($optional));

        // The parent can decline optional policies on child's behalf.

        $this->setUser($parent);

        $this->assertFalse(api::can_decline_policies($mixed, $child->id));

        $this->assertFalse(api::can_decline_policies($compulsory, $child->id));

        $this->assertTrue(api::can_decline_policies($optional, $child->id));

        // Even officers or managers cannot decline compulsory policies.

        $this->setUser($officer);

        $this->assertFalse(api::can_decline_policies($mixed));

        $this->assertFalse(api::can_decline_policies($compulsory));

        $this->assertTrue(api::can_decline_policies($optional));

        $this->assertFalse(api::can_decline_policies($mixed, $child->id));

        $this->assertFalse(api::can_decline_policies($compulsory, $child->id));

        $this->assertTrue(api::can_decline_policies($optional, $child->id));

        $this->setUser($manager);

        $this->assertFalse(api::can_decline_policies($mixed));

        $this->assertFalse(api::can_decline_policies($compulsory));

        $this->assertTrue(api::can_decline_policies($optional));

        $this->assertFalse(api::can_decline_policies($mixed, $child->id));

        $this->assertFalse(api::can_decline_policies($compulsory, $child->id));

        $this->assertTrue(api::can_decline_policies($optional, $child->id));

    }

    /**

     * Test behaviour of the {@link api::can_revoke_policies()} method.

     */

    public function test_can_revoke_policies() {

        global $CFG;

        $this->resetAfterTest();

        $this->setAdminUser();

        $user = $this->getDataGenerator()->create_user();

        $child = $this->getDataGenerator()->create_user();

        $parent = $this->getDataGenerator()->create_user();

        $officer = $this->getDataGenerator()->create_user();

        $manager = $this->getDataGenerator()->create_user();

        $syscontext = \context_system::instance();

        $childcontext = \context_user::instance($child->id);

        $roleminorid = create_role('Digital minor', 'digiminor', 'Not old enough to accept site policies themselves');

        $roleparentid = create_role('Parent', 'parent', 'Can accept policies on behalf of their child');

        $roleofficerid = create_role('Policy officer', 'policyofficer', 'Can see all acceptances but can\'t edit policy documents');

        $rolemanagerid = create_role('Policy manager', 'policymanager', 'Can manage policy documents');

        assign_capability('tool/policy:accept', CAP_PROHIBIT, $roleminorid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleparentid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:viewacceptances', CAP_ALLOW, $roleofficerid, $syscontext->id);

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        assign_capability('tool/policy:managedocs', CAP_ALLOW, $rolemanagerid, $syscontext->id);

        role_assign($roleminorid, $child->id, $syscontext->id);

        // Becoming a parent is easy. Being a good one is difficult.

        role_assign($roleparentid, $parent->id, $childcontext->id);

        role_assign($roleofficerid, $officer->id, $syscontext->id);

        role_assign($rolemanagerid, $manager->id, $syscontext->id);

        accesslib_clear_all_caches_for_unit_testing();

        $policy1 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        $policy2 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        $versionids = [$policy1->id, $policy2->id];

        // Guests cannot revoke anything.

        $this->setGuestUser();

        $this->assertFalse(api::can_revoke_policies($versionids));

        // Normally users do not have access to revoke policies.

        $this->setUser($user);

        $this->assertFalse(api::can_revoke_policies($versionids, $user->id));

        $this->setUser($child);

        $this->assertFalse(api::can_revoke_policies($versionids, $child->id));

        // Optional policies can be revoked if the user can accept them.

        $this->setUser($user);

        $this->assertTrue(api::can_revoke_policies([$policy2->id]));

        $this->assertTrue(api::can_revoke_policies([$policy2->id], $user->id));

        $this->setUser($child);

        $this->assertFalse(api::can_revoke_policies([$policy2->id]));

        $this->assertFalse(api::can_revoke_policies([$policy2->id], $child->id));

        // The parent can revoke the policy on behalf of her child (but not her own policies, unless they are optional).

        $this->setUser($parent);

        $this->assertFalse(api::can_revoke_policies($versionids, $parent->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $child->id));

        $this->assertTrue(api::can_revoke_policies([$policy2->id]));

        $this->assertTrue(api::can_revoke_policies([$policy2->id], $child->id));

        // Officers and managers can revoke everything.

        $this->setUser($officer);

        $this->assertTrue(api::can_revoke_policies($versionids, $officer->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $child->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $parent->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $manager->id));

        $this->setUser($manager);

        $this->assertTrue(api::can_revoke_policies($versionids, $manager->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $child->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $parent->id));

        $this->assertTrue(api::can_revoke_policies($versionids, $officer->id));

    }

    /**

     * Test {@link api::fix_revision_values()} behaviour.

     */

    public function test_fix_revision_values() {

        $this->resetAfterTest();

        $this->setAdminUser();

        $versions = [

            (object) ['id' => 80, 'timecreated' => mktime(1, 1, 1, 12, 28, 2018), 'revision' => '', 'e' => '28 December 2018'],

            (object) ['id' => 70, 'timecreated' => mktime(1, 1, 1, 12, 27, 2018), 'revision' => '', 'e' => '27 December 2018 - v2'],

            (object) ['id' => 60, 'timecreated' => mktime(1, 1, 1, 12, 27, 2018), 'revision' => '', 'e' => '27 December 2018 - v1'],

            (object) ['id' => 50, 'timecreated' => mktime(0, 0, 0, 12, 26, 2018), 'revision' => '0', 'e' => '0'],

            (object) ['id' => 40, 'timecreated' => mktime(0, 0, 0, 12, 26, 2018), 'revision' => '1.1', 'e' => '1.1 - v2'],

            (object) ['id' => 30, 'timecreated' => mktime(0, 0, 0, 12, 26, 2018), 'revision' => '1.1', 'e' => '1.1 - v1'],

            (object) ['id' => 20, 'timecreated' => mktime(0, 0, 0, 12, 26, 2018), 'revision' => '', 'e' => '26 December 2018'],

            (object) ['id' => 10, 'timecreated' => mktime(17, 57, 00, 12, 25, 2018), 'revision' => '1.0', 'e' => '1.0'],

        ];

        api::fix_revision_values($versions);

        foreach ($versions as $version) {

            $this->assertSame($version->revision, $version->e);

        }

    }

    /**

     * Test that accepting policy updates 'policyagreed'

     */

    public function test_accept_policies() {

        global $DB, $USER;

        $this->resetAfterTest();

        $this->setAdminUser();

        $policy1 = helper::add_policy()->to_record();

        api::make_current($policy1->id);

        $policy2 = helper::add_policy()->to_record();

        api::make_current($policy2->id);

        $policy3 = helper::add_policy(['optional' => true])->to_record();

        api::make_current($policy3->id);

        // Accept policy on behalf of somebody else.

        $user1 = $this->getDataGenerator()->create_user();

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Accepting just compulsory policies is not enough, we want to hear explicitly about the optional one, too.

        api::accept_policies([$policy1->id, $policy2->id], $user1->id);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Optional policy does not need to be accepted, but it must be answered explicitly.

        api::decline_policies([$policy3->id], $user1->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Revoke previous agreement to a compulsory policy.

        api::revoke_acceptance($policy1->id, $user1->id);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Accept policies for oneself.

        $user2 = $this->getDataGenerator()->create_user();

        $this->setUser($user2);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

        api::accept_policies([$policy1->id]);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

        api::accept_policies([$policy2->id]);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

        api::decline_policies([$policy3->id]);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

        api::accept_policies([$policy3->id]);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

        // Ensure policies are always accepted when all are responded regardless the $USER->policyagreed value.

        $USER->policyagreed = 1;

        $DB->set_field('user', 'policyagreed', 0, ['id' => $user2->id]);

        api::accept_policies([$policy3->id]);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user2->id]));

    }

    /**

     * Test that activating a new policy resets everybody's policyagreed flag in the database.

     */

    public function test_reset_policyagreed() {

        global $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $user1 = $this->getDataGenerator()->create_user();

        // Introducing a new policy.

        list($policy1v1, $policy1v2) = helper::create_versions(2);

        api::make_current($policy1v1->id);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        api::accept_policies([$policy1v1->id], $user1->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Introducing another policy.

        $policy2v1 = helper::add_policy()->to_record();

        api::make_current($policy2v1->id);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        api::accept_policies([$policy2v1->id], $user1->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Updating an existing policy (major update).

        api::make_current($policy1v2->id);

        $this->assertEquals(0, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        api::accept_policies([$policy1v2->id], $user1->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Do not touch the flag if there is no new version (e.g. a minor update).

        api::make_current($policy2v1->id);

        api::make_current($policy1v2->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Do not touch the flag if inactivating a policy.

        api::inactivate($policy1v2->policyid);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

        // Do not touch the flag if setting to draft a policy.

        api::revert_to_draft($policy1v2->id);

        $this->assertEquals(1, $DB->get_field('user', 'policyagreed', ['id' => $user1->id]));

    }

    /**

     * Test behaviour of the {@link api::get_user_minors()} method.

     */

    public function test_get_user_minors() {

        $this->resetAfterTest();

        // A mother having two children, each child having own father.

        $mother1 = $this->getDataGenerator()->create_user();

        $father1 = $this->getDataGenerator()->create_user();

        $father2 = $this->getDataGenerator()->create_user();

        $child1 = $this->getDataGenerator()->create_user();

        $child2 = $this->getDataGenerator()->create_user();

        $syscontext = \context_system::instance();

        $child1context = \context_user::instance($child1->id);

        $child2context = \context_user::instance($child2->id);

        $roleparentid = create_role('Parent', 'parent', 'Can accept policies on behalf of their child');

        assign_capability('tool/policy:acceptbehalf', CAP_ALLOW, $roleparentid, $syscontext->id);

        role_assign($roleparentid, $mother1->id, $child1context->id);

        role_assign($roleparentid, $mother1->id, $child2context->id);

        role_assign($roleparentid, $father1->id, $child1context->id);

        role_assign($roleparentid, $father2->id, $child2context->id);

        accesslib_clear_all_caches_for_unit_testing();

        $mother1minors = api::get_user_minors($mother1->id);

        $this->assertEquals(2, count($mother1minors));

        $father1minors = api::get_user_minors($father1->id);

        $this->assertEquals(1, count($father1minors));

        $this->assertEquals($child1->id, $father1minors[$child1->id]->id);

        $father2minors = api::get_user_minors($father2->id);

        $this->assertEquals(1, count($father2minors));

        $this->assertEquals($child2->id, $father2minors[$child2->id]->id);

        $this->assertEmpty(api::get_user_minors($child1->id));

        $this->assertEmpty(api::get_user_minors($child2->id));

        $extradata = api::get_user_minors($mother1->id, ['policyagreed', 'deleted']);

        $this->assertTrue(property_exists($extradata[$child1->id], 'policyagreed'));

        $this->assertTrue(property_exists($extradata[$child1->id], 'deleted'));

        $this->assertTrue(property_exists($extradata[$child2->id], 'policyagreed'));

        $this->assertTrue(property_exists($extradata[$child2->id], 'deleted'));

    }

    /**

     * Test behaviour of the {@link api::create_acceptances_user_created()} method.

     */

    public function test_create_acceptances_user_created() {

        global $CFG, $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $CFG->sitepolicyhandler = 'tool_policy';

        $policy = helper::add_policy()->to_record();

        api::make_current($policy->id);

        // User has not accepted any policies.

        $user1 = $this->getDataGenerator()->create_user();

        \core\event\user_created::create_from_userid($user1->id)->trigger();

        $this->assertEquals(0, $DB->count_records('tool_policy_acceptances',

            ['userid' => $user1->id, 'policyversionid' => $policy->id]));

        // User has accepted policies.

        $user2 = $this->getDataGenerator()->create_user();

        $DB->set_field('user', 'policyagreed', 1, ['id' => $user2->id]);

        \core\event\user_created::create_from_userid($user2->id)->trigger();

        $this->assertEquals(1, $DB->count_records('tool_policy_acceptances',

            ['userid' => $user2->id, 'policyversionid' => $policy->id]));

    }

    /**

     * Test that user can login if sitepolicyhandler is set but there are no policies.

     */

    public function test_login_with_handler_without_policies() {

        global $CFG;

        $this->resetAfterTest();

        $user = $this->getDataGenerator()->create_user();

        $this->setUser($user);

        $CFG->sitepolicyhandler = 'tool_policy';

        require_login(null, false, null, false, true);

    }

    /**

     * Test the three-state logic of the value returned by {@link api::is_user_version_accepted()}.

     */

    public function test_is_user_version_accepted() {

        $preloadedacceptances = [

            4 => (object) [

                'policyversionid' => 4,

                'mainuserid' => 13,

                'status' => 1,

            ],

            6 => (object) [

                'policyversionid' => 6,

                'mainuserid' => 13,

                'status' => 0,

            ],

        ];

        $this->assertTrue(api::is_user_version_accepted(13, 4, $preloadedacceptances));

        $this->assertFalse(api::is_user_version_accepted(13, 6, $preloadedacceptances));

        $this->assertNull(api::is_user_version_accepted(13, 5, $preloadedacceptances));

    }

    /**

     * Test the functionality of {@link api::get_agreement_optional()}.

     */

    public function test_get_agreement_optional() {

        global $DB;

        $this->resetAfterTest();

        $this->setAdminUser();

        $policy1 = helper::add_policy(['optional' => policy_version::AGREEMENT_OPTIONAL])->to_record();

        api::make_current($policy1->id);

        $policy2 = helper::add_policy(['optional' => policy_version::AGREEMENT_COMPULSORY])->to_record();

        api::make_current($policy2->id);

        $this->assertEquals(api::get_agreement_optional($policy1->id), policy_version::AGREEMENT_OPTIONAL);

        $this->assertEquals(api::get_agreement_optional($policy2->id), policy_version::AGREEMENT_COMPULSORY);

    }

}