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.

//

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// 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/>.

/**

 * Unit Tests for the approved contextlist Class

 *

 * @package     core_privacy

 * @category    test

 * @copyright   2018 Andrew Nicols <andrew@nicols.co.uk>

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

 */

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

global $CFG;

use \core_privacy\local\request\contextlist;

/**

 * Tests for the \core_privacy API's approved contextlist functionality.

 *

 * @copyright   2018 Andrew Nicols <andrew@nicols.co.uk>

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

 * @coversDefaultClass \core_privacy\local\request\contextlist

 */

class contextlist_test extends advanced_testcase {

    /**

     * Ensure that valid SQL results in the relevant contexts being added.

     *

     * @covers ::add_from_sql

     */

    public function test_add_from_sql() {

        global $DB;

        $sql = "SELECT c.id FROM {context} c";

        $params = [];

        $allcontexts = $DB->get_records_sql($sql, $params);

        $uit = new contextlist();

        $uit->add_from_sql($sql, $params);

        $this->assertCount(count($allcontexts), $uit);

    }

    /**

     * Ensure that valid system context id is added.

     *

     * @covers ::add_system_context

     */

    public function test_add_system_context() {

        $cl = new contextlist();

        $cl->add_system_context();

        $this->assertCount(1, $cl);

        foreach ($cl->get_contexts() as $context) {

            $this->assertEquals(SYSCONTEXTID, $context->id);

        }

    }

    /**

     * Ensure that a valid user context id is added.

     *

     * @covers ::add_user_context

     */

    public function test_add_user_context() {

        $this->resetAfterTest();

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

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

        $cl = new contextlist();

        $cl->add_user_context($user->id);

        $this->assertCount(1, $cl);

        foreach ($cl->get_contexts() as $context) {

            $this->assertEquals(\context_user::instance($user->id)->id, $context->id);

        }

    }

    /**

     * Ensure that valid user contexts are added.

     *

     * @covers ::add_user_contexts

     */

    public function test_add_user_contexts() {

        $this->resetAfterTest();

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

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

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

        $cl = new contextlist();

        $cl->add_user_contexts([$user1->id, $user2->id]);

        $this->assertCount(2, $cl);

        $contexts = $cl->get_contextids();

        $this->assertContainsEquals(\context_user::instance($user1->id)->id, $contexts);

        $this->assertContainsEquals(\context_user::instance($user2->id)->id, $contexts);

    }

    /**

     * Test {@link \core_privacy\local\request\contextlist::test_guess_id_field_from_sql()} implementation.

     *

     * @dataProvider data_guess_id_field_from_sql

     * @param string $sql Input SQL we try to extract the context id field name from.

     * @param string $expected Expected detected value.

     * @covers ::guess_id_field_from_sql

     */

    public function test_guess_id_field_from_sql($sql, $expected) {

        $rc = new \ReflectionClass(contextlist::class);

        $rcm = $rc->getMethod('guess_id_field_from_sql');

        $actual = $rcm->invoke(new contextlist(), $sql);

        $this->assertEquals($expected, $actual, 'Unable to guess context id field in: '.$sql);

    }

    /**

     * Provides data sets for {@link self::test_guess_id_field_from_sql()}.

     *

     * @return array

     */

    public function data_guess_id_field_from_sql() {

        return [

            'easy' => [

                'SELECT contextid FROM {foo}',

                'contextid',

            ],

            'with_distinct' => [

                'SELECT DISTINCT contextid FROM {foo}',

                'contextid',

            ],

            'with_dot' => [

                'SELECT cx.id FROM {foo} JOIN {context} cx ON blahblahblah',

                'id',

            ],

            'letter_case_does_not_matter' => [

                'Select ctxid From {foo} Where bar = ?',

                'ctxid',

            ],

            'alias' => [

                'SELECT foo.contextid AS ctx FROM {bar} JOIN {foo} ON bar.id = foo.barid',

                'ctx',

            ],

            'tabs' => [

                "SELECT\tctxid\t\tFROM foo f",

                'ctxid',

            ],

            'whitespace' => [

                "SELECT

                    ctxid\t

                   \tFROM foo f",

                'ctxid',

            ],

            'just_number' => [

                '1',

                '1',

            ],

            'select_number' => [

                'SELECT 2',

                '2',

            ],

            'select_number_with_semicolon' => [

                'SELECT 3;',

                '3',

            ],

            'select_number_from_table' => [

                'SELECT 4 FROM users',

                '4',

            ],

            'select_with_complex_subqueries' => [

                'SELECT id FROM table WHERE id IN (

                     SELECT x FROM xtable

                     UNION

                     SELECT y FROM (

                         SELECT y FROM ytable

                         JOIN ztable ON (z = y)))',

                'id'

            ],

            'invalid_union_with_first_being_column_name' => [

                'SELECT id FROM table UNION SELECT 1 FROM table',

                ''

            ],

            'invalid_union_with_first_being_numeric' => [

                'SELECT 1 FROM table UNION SELECT id FROM table',

                ''

            ],

            'invalid_union_without_from' => [

                'SELECT 1 UNION SELECT id FROM table',

                ''

            ],

            'invalid_1' => [

                'SELECT 1+1',

                '',

            ],

            'invalid_2' => [

                'muhehe',

                '',

            ],

        ];

    }

}