You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

654 lines
28 KiB

<?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/>.
/**
* Data provider tests.
*
* @package mod_wiki
* @category test
* @copyright 2018 Marina Glancy
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
use core_privacy\tests\provider_testcase;
use mod_wiki\privacy\provider;
use core_privacy\local\request\approved_contextlist;
use core_privacy\local\request\approved_userlist;
use core_privacy\local\request\writer;
require_once($CFG->dirroot.'/mod/wiki/locallib.php');
/**
* Data provider testcase class.
*
* @package mod_wiki
* @category test
* @copyright 2018 Marina Glancy
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class mod_wiki_privacy_testcase extends provider_testcase {
/** @var array */
protected $users = [];
/** @var array */
protected $pages = [];
/** @var array */
protected $contexts = [];
/** @var array */
protected $subwikis = [];
/** @var array */
protected $pagepaths = [];
/**
* Set up for each test.
*
* There are three users and four wikis.
* 1 : collaborative wiki, has context $this->contexts[1] and has a single subwiki $this->subwikis[1]
* 2 : individual wiki, has context $this->contexts[2] and three subwikis (one for each user):
* $this->subwikis[21], $this->subwikis[22], $this->subwikis[23],
* the subwiki for the third user is empty
* 3 : collaborative wiki, has context $this->contexts[3] and has a single subwiki $this->subwikis[3]
* 4 : collaborative wiki, has context $this->contexts[4], this wiki is empty
*
* Each subwiki (except for "23") has pages, for example, in $this->subwiki[1] there are pages
* $this->pages[1][1], $this->pages[1][2] and $this->pages[1][3]
* In the export data they have paths:
* $this->pagepaths[1][1], $this->pagepaths[1][2], $this->pagepaths[1][3]
*/
public function setUp() {
global $DB;
$this->resetAfterTest();
$dg = $this->getDataGenerator();
$course = $dg->create_course();
$this->users[1] = $dg->create_user();
$this->users[2] = $dg->create_user();
$this->users[3] = $dg->create_user();
$this->users[4] = $dg->create_user();
$studentrole = $DB->get_record('role', array('shortname' => 'student'));
$this->getDataGenerator()->enrol_user($this->users[1]->id, $course->id, $studentrole->id, 'manual');
$this->getDataGenerator()->enrol_user($this->users[2]->id, $course->id, $studentrole->id, 'manual');
$this->getDataGenerator()->enrol_user($this->users[3]->id, $course->id, $studentrole->id, 'manual');
$this->getDataGenerator()->enrol_user($this->users[4]->id, $course->id, $studentrole->id, 'manual');
$cm1 = $this->getDataGenerator()->create_module('wiki', ['course' => $course->id]);
$cm2 = $this->getDataGenerator()->create_module('wiki', ['course' => $course->id, 'wikimode' => 'individual']);
$cm3 = $this->getDataGenerator()->create_module('wiki', ['course' => $course->id]);
$cm4 = $this->getDataGenerator()->create_module('wiki', ['course' => $course->id]); // Empty.
// User1.
$this->setUser($this->users[1]);
// Create and modify pages in collaborative wiki.
$this->pages[1][1] = $this->create_first_page($cm1);
$this->pages[1][2] = $this->create_page($cm1, ['content' => 'initial content']);
$this->update_page($cm1, $this->pages[1][2], ['content' => 'update1 <img src="@@PLUGINFILE@@/Dog%20jump.jpg">']);
$this->attach_file($cm1, "Dog jump.jpg", 'jpg:Doggy');
$this->update_page($cm1, $this->pages[1][2], ['content' => 'update2']);
// Create pages in individual wiki, add files that are not used in text.
$this->pages[21][1] = $this->create_first_page($cm2);
$this->pages[21][2] = $this->create_page($cm2);
$this->attach_file($cm2, "mycat.jpg", 'jpg:Cat');
// User2.
$this->setUser($this->users[2]);
// Modify existing pages in the first collaborative wiki.
$this->update_page($cm1, $this->pages[1][2], ['content' => 'update3 <img src="@@PLUGINFILE@@/Hamster.jpg">']);
$this->attach_file($cm1, "Hamster.jpg", 'jpg:Hamster');
// Create pages in individual wiki.
$this->pages[22][1] = $this->create_first_page($cm2);
$this->pages[22][2] = $this->create_page($cm2);
// Create pages in the third wiki.
$this->pages[3][1] = $this->create_first_page($cm3);
// User3 (testing locks and empty subwiki).
$this->setUser($this->users[3]);
// Create a subwiki in the individual wiki without any pages.
$subwiki23 = $dg->get_plugin_generator('mod_wiki')->get_subwiki($cm2);
// Create a page in the first wiki and then lock it.
$this->pages[1][3] = $this->create_page($cm1);
wiki_set_lock($this->pages[1][3]->id, $this->users[3]->id, null, true);
// Lock a page in the third wiki without having any revisions on it.
wiki_set_lock($this->pages[3][1]->id, $this->users[3]->id, null, true);
// User 4 - added to the first wiki, so all users are not part of all edited contexts.
$this->setUser($this->users[4]);
$this->pages[1][4] = $this->create_page($cm1);
$this->subwikis = [
1 => $this->pages[1][1]->subwikiid,
21 => $this->pages[21][1]->subwikiid,
22 => $this->pages[22][1]->subwikiid,
23 => $subwiki23,
3 => $this->pages[3][1]->subwikiid,
];
$this->contexts = [
1 => context_module::instance($cm1->cmid),
2 => context_module::instance($cm2->cmid),
3 => context_module::instance($cm3->cmid),
4 => context_module::instance($cm4->cmid),
];
$this->pagepaths = [
1 => [
1 => $this->pages[1][1]->id . ' ' . $this->pages[1][1]->title,
2 => $this->pages[1][2]->id . ' ' . $this->pages[1][2]->title,
3 => $this->pages[1][3]->id . ' ' . $this->pages[1][3]->title,
4 => $this->pages[1][4]->id . ' ' . $this->pages[1][4]->title,
],
21 => [
1 => $this->pages[21][1]->id . ' ' . $this->pages[21][1]->title,
2 => $this->pages[21][2]->id . ' ' . $this->pages[21][2]->title,
],
22 => [
1 => $this->pages[22][1]->id . ' ' . $this->pages[22][1]->title,
2 => $this->pages[22][2]->id . ' ' . $this->pages[22][2]->title,
],
3 => [
1 => $this->pages[3][1]->id . ' ' . $this->pages[3][1]->title,
]
];
}
/**
* Generate first page in wiki as current user
*
* @param stdClass $wiki
* @param array $record
* @return mixed
*/
protected function create_first_page($wiki, $record = []) {
$dg = $this->getDataGenerator();
$wg = $dg->get_plugin_generator('mod_wiki');
return $wg->create_first_page($wiki, $record);
}
/**
* Generate a page in wiki as current user
*
* @param stdClass $wiki
* @param array $record
* @return mixed
*/
protected function create_page($wiki, $record = []) {
$dg = $this->getDataGenerator();
$wg = $dg->get_plugin_generator('mod_wiki');
return $wg->create_page($wiki, $record);
}
/**
* Update an existing page in wiki as current user
*
* @param stdClass $wiki
* @param stdClass $page
* @param array $record
* @return mixed
*/
protected function update_page($wiki, $page, $record = []) {
$dg = $this->getDataGenerator();
$wg = $dg->get_plugin_generator('mod_wiki');
return $wg->create_page($wiki, ['title' => $page->title] + $record);
}
/**
* Attach file to a wiki as a current user
*
* @param stdClass $wiki
* @param string $filename
* @param string $filecontent
* @return stored_file
*/
protected function attach_file($wiki, $filename, $filecontent) {
$dg = $this->getDataGenerator();
$wg = $dg->get_plugin_generator('mod_wiki');
$subwikiid = $wg->get_subwiki($wiki);
$fs = get_file_storage();
return $fs->create_file_from_string([
'contextid' => context_module::instance($wiki->cmid)->id,
'component' => 'mod_wiki',
'filearea' => 'attachments',
'itemid' => $subwikiid,
'filepath' => '/',
'filename' => $filename,
], $filecontent);
}
/**
* Test getting the contexts for a user.
*/
public function test_get_contexts_for_userid() {
// Get contexts for the first user.
$contextids = provider::get_contexts_for_userid($this->users[1]->id)->get_contextids();
$this->assertEquals([
$this->contexts[1]->id,
$this->contexts[2]->id,
], $contextids, '', 0.0, 10, true);
// Get contexts for the second user.
$contextids = provider::get_contexts_for_userid($this->users[2]->id)->get_contextids();
$this->assertEquals([
$this->contexts[1]->id,
$this->contexts[2]->id,
$this->contexts[3]->id,
], $contextids, '', 0.0, 10, true);
// Get contexts for the third user.
$contextids = provider::get_contexts_for_userid($this->users[3]->id)->get_contextids();
$this->assertEquals([
$this->contexts[1]->id,
$this->contexts[2]->id,
$this->contexts[3]->id,
], $contextids, '', 0.0, 10, true);
}
/**
* Test getting the users within a context.
*/
public function test_get_users_in_context() {
global $DB;
$component = 'mod_wiki';
// Add a comment from user 4 in context 3.
$this->setUser($this->users[4]);
$this->add_comment($this->pages[3][1], 'Look at me, getting involved!');
// Ensure userlist for context 1 contains all users.
$userlist = new \core_privacy\local\request\userlist($this->contexts[1], $component);
provider::get_users_in_context($userlist);
$this->assertCount(4, $userlist);
$expected = [$this->users[1]->id, $this->users[2]->id, $this->users[3]->id, $this->users[4]->id];
$actual = $userlist->get_userids();
sort($expected);
sort($actual);
$this->assertEquals($expected, $actual);
// Ensure userlist for context 2 contains users 1-3 only.
$userlist = new \core_privacy\local\request\userlist($this->contexts[2], $component);
provider::get_users_in_context($userlist);
$this->assertCount(3, $userlist);
$expected = [$this->users[1]->id, $this->users[2]->id, $this->users[3]->id];
$actual = $userlist->get_userids();
sort($expected);
sort($actual);
$this->assertEquals($expected, $actual);
// Ensure userlist for context 3 contains users 2, 3 and 4 only.
$userlist = new \core_privacy\local\request\userlist($this->contexts[3], $component);
provider::get_users_in_context($userlist);
$this->assertCount(3, $userlist);
$expected = [$this->users[2]->id, $this->users[3]->id, $this->users[4]->id];
$actual = $userlist->get_userids();
sort($expected);
sort($actual);
$this->assertEquals($expected, $actual);
// Ensure userlist for context 4 is empty.
$userlist = new \core_privacy\local\request\userlist($this->contexts[4], $component);
provider::get_users_in_context($userlist);
$this->assertEmpty($userlist);
}
/**
* Export data for user 1
*/
public function test_export_user_data1() {
// Export all contexts for the first user.
$contextids = array_values(array_map(function($c) {
return $c->id;
}, $this->contexts));
$appctx = new approved_contextlist($this->users[1], 'mod_wiki', $contextids);
provider::export_user_data($appctx);
// First wiki has two pages ever touched by this user.
$data = writer::with_context($this->contexts[1])->get_related_data([$this->subwikis[1]]);
$this->assertEquals([
$this->pagepaths[1][1],
$this->pagepaths[1][2]
], array_keys($data));
// First page was initially created by this user and all its information is returned to this user.
$data11 = $data[$this->pagepaths[1][1]];
$this->assertEquals($this->pages[1][1]->cachedcontent, $data11['page']['cachedcontent']);
$this->assertNotEmpty($data11['page']['timecreated']);
// Wiki creates two revisions when page is created, first one with empty content.
$this->assertEquals(2, count($data11['revisions']));
$this->assertFalse(array_key_exists('locks', $data11));
// Only one file is returned that was in the revision made by this user.
// The second page was last modified by a different user, so userid in the wiki_pages table is different,
// additional page information is not exported.
$data12 = $data[$this->pagepaths[1][2]];
$this->assertFalse(isset($data12['page']['timecreated']));
// There are two revisions for creating the page and two additional revisions made by this user.
$this->assertEquals(4, count($data12['revisions']));
$lastrevision = array_pop($data12['revisions']);
$this->assertEquals('update2', $lastrevision['content']);
// There is one file that was used in this user's contents - "Dog face.jpg" and one file in page cachedcontents.
$files = writer::with_context($this->contexts[1])->get_files([$this->subwikis[1]]);
$this->assertEquals(['Dog jump.jpg', 'Hamster.jpg'], array_keys($files), '', 0, 10, true);
// Second (individual) wiki for the first user, two pages are returned for this user's subwiki.
$data = writer::with_context($this->contexts[2])->get_related_data([$this->subwikis[21]]);
$this->assertEquals([
$this->pagepaths[21][1],
$this->pagepaths[21][2]
], array_keys($data));
$files = writer::with_context($this->contexts[2])->get_files([$this->subwikis[21]]);
$this->assertEquals(['mycat.jpg'], array_keys($files));
// Second (individual) wiki for the first user, nothing is returned for the second user's subwiki.
$this->assertFalse(writer::with_context($this->contexts[2])->has_any_data([$this->subwikis[22]]));
// Third wiki for the first user, there were no contributions by the first user.
$this->assertFalse(writer::with_context($this->contexts[3])->has_any_data([$this->subwikis[3]]));
}
/**
* Test export data for user 2
*/
public function test_export_user_data2() {
// Export all contexts for the second user.
$contextids = array_values(array_map(function($c) {
return $c->id;
}, $this->contexts));
$appctx = new approved_contextlist($this->users[2], 'mod_wiki', $contextids);
provider::export_user_data($appctx);
// First wiki - this user only modified the second page.
$data = writer::with_context($this->contexts[1])->get_related_data([$this->subwikis[1]]);
$this->assertEquals([
$this->pagepaths[1][2]
], array_keys($data));
// This user was the last one to modify this page, so the page info is returned.
$data12 = $data[$this->pagepaths[1][2]];
$this->assertEquals('update3 <img src="files/Hamster.jpg" alt="Hamster.jpg" />', trim($data12['page']['cachedcontent']));
// He made one revision.
$this->assertEquals(1, count($data12['revisions']));
$lastrevision = reset($data12['revisions']);
$this->assertEquals('update3 <img src="files/Hamster.jpg">', trim($lastrevision['content']));
// Only one file was used in the first wiki by this user - Hamster.jpg.
$files = writer::with_context($this->contexts[1])->get_files([$this->subwikis[1]]);
$this->assertEquals(['Hamster.jpg'], array_keys($files));
// Export second (individual) wiki, nothing is returned for the other user's subwiki.
$this->assertFalse(writer::with_context($this->contexts[2])->has_any_data([$this->subwikis[21]]));
// Export second (individual) wiki, two pages are returned for this user's subwiki.
$data = writer::with_context($this->contexts[2])->get_related_data([$this->subwikis[22]]);
$this->assertEquals([
$this->pagepaths[22][1],
$this->pagepaths[22][2]
], array_keys($data));
$files = writer::with_context($this->contexts[2])->get_files([$this->subwikis[22]]);
$this->assertEmpty($files);
// Second user made contributions to the third wiki.
$data = writer::with_context($this->contexts[3])->get_related_data([$this->subwikis[3]]);
$this->assertEquals([
$this->pagepaths[3][1]
], array_keys($data));
$files = writer::with_context($this->contexts[3])->get_files([$this->subwikis[3]]);
$this->assertEmpty($files);
}
/**
* Test export data for user 3 (locks, empty individual wiki)
*/
public function test_export_user_data3() {
// Export all contexts for the third user.
$contextids = array_values(array_map(function($c) {
return $c->id;
}, $this->contexts));
$appctx = new approved_contextlist($this->users[3], 'mod_wiki', $contextids);
provider::export_user_data($appctx);
// For the third page of the first wiki there are 2 revisions and 1 lock.
$data = writer::with_context($this->contexts[1])->get_related_data([$this->subwikis[1]]);
$this->assertEquals([
$this->pagepaths[1][3]
], array_keys($data));
$data13 = $data[$this->pagepaths[1][3]];
$this->assertNotEmpty($data13['page']['timecreated']);
$this->assertEquals(2, count($data13['revisions']));
$this->assertEquals(1, count($data13['locks']));
$files = writer::with_context($this->contexts[1])->get_files([$this->subwikis[1]]);
$this->assertEmpty($files);
// Empty individual wiki.
$this->assertTrue(writer::with_context($this->contexts[2])->has_any_data());
$data = writer::with_context($this->contexts[2])->get_data([$this->subwikis[23]]);
$this->assertEquals((object)[
'groupid' => 0,
'userid' => $this->users[3]->id
], $data);
$files = writer::with_context($this->contexts[2])->get_files([$this->subwikis[23]]);
$this->assertEmpty($files);
// For the third wiki there is no page information, no revisions and one lock.
$data = writer::with_context($this->contexts[3])->get_related_data([$this->subwikis[3]]);
$this->assertEquals([
$this->pagepaths[3][1]
], array_keys($data));
$data31 = $data[$this->pagepaths[3][1]];
$this->assertTrue(empty($data31['page']['timecreated']));
$this->assertTrue(empty($data31['revisions']));
$this->assertEquals(1, count($data31['locks']));
$files = writer::with_context($this->contexts[3])->get_files([$this->subwikis[3]]);
$this->assertEmpty($files);
// No data for the forth wiki.
$this->assertFalse(writer::with_context($this->contexts[4])->has_any_data());
}
/**
* Creates a comment object
*
* @param stdClass $page
* @param string $text
* @return comment The comment object.
*/
protected function add_comment($page, $text) {
global $DB, $CFG, $USER;
require_once($CFG->dirroot . '/comment/lib.php');
$record = $DB->get_record_sql('SELECT cm.id, cm.course FROM {course_modules} cm
JOIN {modules} m ON m.name = ? AND m.id = cm.module
JOIN {wiki} w ON cm.instance = w.id
JOIN {wiki_subwikis} s ON s.wikiid = w.id
WHERE s.id=?', ['wiki', $page->subwikiid]);
$context = context_module::instance($record->id);
$args = new stdClass;
$args->context = $context;
$args->courseid = $record->course;
$args->area = 'wiki_page';
$args->itemid = $page->id;
$args->component = 'mod_wiki';
$comment = new comment($args);
$comment->set_post_permission(true);
$comment->add($text);
return $comment;
}
/**
* Test export data when there are comments.
*/
public function test_export_user_data_with_comments() {
global $DB;
// Comment on each page in the first wiki as the first user.
$this->setUser($this->users[1]);
$this->add_comment($this->pages[1][1], 'Hello111');
$this->add_comment($this->pages[1][2], 'Hello112');
$this->add_comment($this->pages[1][3], 'Hello113');
// Comment on second and third page as the third user.
$this->setUser($this->users[3]);
$this->add_comment($this->pages[1][2], 'Hello312');
$this->add_comment($this->pages[1][3], 'Hello313');
// Export all contexts for the third user.
$contextids = array_values(array_map(function($c) {
return $c->id;
}, $this->contexts));
$appctx = new approved_contextlist($this->users[3], 'mod_wiki', $contextids);
provider::export_user_data($appctx);
$data = writer::with_context($this->contexts[1])->get_related_data([$this->subwikis[1]]);
// Now user has two pages (comparing to previous test where he had one).
$this->assertEquals([
$this->pagepaths[1][2],
$this->pagepaths[1][3]
], array_keys($data));
// Page 1-2 was exported and it has one comment that this user made (comment from another user was not exported).
$data12 = $data[$this->pagepaths[1][2]];
$this->assertTrue(empty($data12['page']['timecreated']));
$this->assertTrue(empty($data12['revisions']));
$this->assertTrue(empty($data12['locks']));
$this->assertEquals(1, count($data12['page']['comments']));
// Page 1-3 was exported same way as in the previous test and it has two comments.
$data13 = $data[$this->pagepaths[1][3]];
$this->assertNotEmpty($data13['page']['timecreated']);
$this->assertEquals(2, count($data13['revisions']));
$this->assertEquals(1, count($data13['locks']));
$this->assertEquals(2, count($data13['page']['comments']));
}
/**
* Test for delete_data_for_all_users_in_context().
*/
public function test_delete_data_for_all_users_in_context() {
provider::delete_data_for_all_users_in_context($this->contexts[1]);
$appctx = new approved_contextlist($this->users[1], 'mod_wiki',
[$this->contexts[1]->id, $this->contexts[2]->id]);
provider::export_user_data($appctx);
$this->assertFalse(writer::with_context($this->contexts[1])->has_any_data());
$this->assertTrue(writer::with_context($this->contexts[2])->has_any_data());
writer::reset();
$appctx = new approved_contextlist($this->users[2], 'mod_wiki', [$this->contexts[1]->id]);
provider::export_user_data($appctx);
$this->assertFalse(writer::with_context($this->contexts[1])->has_any_data());
writer::reset();
$appctx = new approved_contextlist($this->users[3], 'mod_wiki', [$this->contexts[1]->id]);
provider::export_user_data($appctx);
$this->assertFalse(writer::with_context($this->contexts[1])->has_any_data());
}
/**
* Test for delete_data_for_user().
*/
public function test_delete_data_for_user() {
$appctx = new approved_contextlist($this->users[1], 'mod_wiki',
[$this->contexts[1]->id, $this->contexts[1]->id]);
provider::delete_data_for_user($appctx);
provider::export_user_data($appctx);
$this->assertTrue(writer::with_context($this->contexts[1])->has_any_data());
$this->assertFalse(writer::with_context($this->contexts[2])->has_any_data());
}
/**
* Test for delete_data_for_users().
*/
public function test_delete_data_for_users() {
$component = 'mod_wiki';
// Ensure data exists within context 2 - individual wikis.
// Since each user owns their own subwiki in this context, they can be deleted.
$u1ctx2 = new approved_contextlist($this->users[1], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u1ctx2);
$u2ctx2 = new approved_contextlist($this->users[2], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u2ctx2);
$u3ctx2 = new approved_contextlist($this->users[3], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u3ctx2);
$this->assertTrue(writer::with_context($this->contexts[2])->has_any_data());
writer::reset();
// Delete user 1 and 2 data, user 3's wiki still remains.
$approveduserids = [$this->users[1]->id, $this->users[2]->id];
$approvedlist = new approved_userlist($this->contexts[2], $component, $approveduserids);
provider::delete_data_for_users($approvedlist);
$u1ctx2 = new approved_contextlist($this->users[1], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u1ctx2);
$u2ctx2 = new approved_contextlist($this->users[2], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u2ctx2);
$u3ctx2 = new approved_contextlist($this->users[3], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u3ctx2);
$this->assertTrue(writer::with_context($this->contexts[2])->has_any_data());
writer::reset();
// Delete user 3's wiki. All 3 subwikis now deleted, so ensure no data is found in this context.
$approveduserids = [$this->users[3]->id];
$approvedlist = new approved_userlist($this->contexts[2], $component, $approveduserids);
provider::delete_data_for_users($approvedlist);
$u1ctx2 = new approved_contextlist($this->users[1], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u1ctx2);
$u2ctx2 = new approved_contextlist($this->users[2], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u2ctx2);
$u3ctx2 = new approved_contextlist($this->users[3], 'mod_wiki', [$this->contexts[2]->id]);
provider::export_user_data($u3ctx2);
$this->assertFalse(writer::with_context($this->contexts[2])->has_any_data());
writer::reset();
// Ensure Context 1 still contains data.
$u1ctx1 = new approved_contextlist($this->users[1], 'mod_wiki', [$this->contexts[1]->id]);
provider::export_user_data($u1ctx1);
$u2ctx1 = new approved_contextlist($this->users[2], 'mod_wiki', [$this->contexts[1]->id]);
provider::export_user_data($u2ctx1);
$u3ctx1 = new approved_contextlist($this->users[3], 'mod_wiki', [$this->contexts[1]->id]);
provider::export_user_data($u3ctx1);
$this->assertTrue(writer::with_context($this->contexts[1])->has_any_data());
}
}