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129 lines
6.3 KiB
129 lines
6.3 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Tests for {@link decompose_update_into_safe_changes()} and
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* {@link update_field_with_unique_index()}.
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*
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* @package core
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* @copyright 2014 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Tests for {@link decompose_update_into_safe_changes()} and
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* {@link update_field_with_unique_index()}.
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*
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* @copyright 2014 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class datalib_update_with_unique_index_testcase extends advanced_testcase {
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public function test_decompose_update_into_safe_changes_identity() {
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$this->assertEquals(array(), decompose_update_into_safe_changes(
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array(1 => 1, 2 => 2), -1));
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}
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public function test_decompose_update_into_safe_changes_no_overlap() {
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$this->assertEquals(array(array(1, 3), array(2, 4)), decompose_update_into_safe_changes(
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array(1 => 3, 2 => 4), -1));
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}
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public function test_decompose_update_into_safe_changes_shift() {
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$this->assertSame(array(array(3, 4), array(2, 3), array(1, 2)), decompose_update_into_safe_changes(
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array(1 => 2, 2 => 3, 3 => 4), -1));
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}
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public function test_decompose_decompose_update_into_safe_changes_simple_swap() {
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$this->assertEquals(array(array(1, -1), array(2, 1), array(-1, 2)), decompose_update_into_safe_changes(
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array(1 => 2, 2 => 1), -1));
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}
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public function test_decompose_update_into_safe_changes_cycle() {
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$this->assertEquals(array(array(1, -2), array(3, 1), array(2, 3), array(-2, 2)),
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decompose_update_into_safe_changes(
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array(1 => 2, 2 => 3 , 3 => 1), -2));
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}
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public function test_decompose_update_into_safe_changes_complex() {
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$this->assertEquals(array(array(9, 10), array(8, 9),
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array(1, -1), array(5, 1), array(7, 5), array(-1, 7),
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array(4, -1), array(6, 4), array(-1, 6)), decompose_update_into_safe_changes(
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array(1 => 7, 2 => 2, 3 => 3, 4 => 6, 5 => 1, 6 => 4, 7 => 5, 8 => 9, 9 => 10), -1));
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}
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public function test_decompose_update_into_safe_changes_unused_value_id_used() {
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try {
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decompose_update_into_safe_changes(array(1 => 1), 1);
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$this->fail('Expected exception was not thrown');
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} catch (coding_exception $e) {
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$this->assertEquals('Supposedly unused value 1 is actually used!', $e->a);
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}
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}
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public function test_decompose_update_into_safe_changes_string_values() {
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// Sometimes this happens when data has been loaded from the database.
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$this->assertEquals(array(array(1, -1), array(2, 1),
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array(3, 2), array(4, 3), array(-1, 4)),
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decompose_update_into_safe_changes(
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array(1 => '4', 2 => '1', 3 => '2', 4 => '3'), -1));
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}
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public function test_reorder_rows() {
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global $DB;
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$dbman = $DB->get_manager();
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$this->resetAfterTest();
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$table = new xmldb_table('test_table');
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$table->setComment("This is a test'n drop table. You can drop it safely");
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$tablename = $table->getName();
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$table->add_field('id', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
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$table->add_field('otherid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
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$table->add_field('sortorder', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
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$table->add_field('otherdata', XMLDB_TYPE_TEXT, 'big', null, null, null);
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$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
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$table->add_key('unique', XMLDB_KEY_UNIQUE, array('otherid', 'sortorder'));
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$dbman->create_table($table);
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// Rows intentionally added in a slightly 'random' order.
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// Note we are testing hat the otherid = 1 rows don't get messed up,
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// as well as testing that the otherid = 2 rows are updated correctly.
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$DB->insert_record($tablename, array('otherid' => 2, 'sortorder' => 1, 'otherdata' => 'To become 4'));
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$DB->insert_record($tablename, array('otherid' => 2, 'sortorder' => 2, 'otherdata' => 'To become 1'));
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$DB->insert_record($tablename, array('otherid' => 1, 'sortorder' => 1, 'otherdata' => 'Other 1'));
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$DB->insert_record($tablename, array('otherid' => 1, 'sortorder' => 2, 'otherdata' => 'Other 2'));
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$DB->insert_record($tablename, array('otherid' => 2, 'sortorder' => 3, 'otherdata' => 'To stay at 3'));
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$DB->insert_record($tablename, array('otherid' => 2, 'sortorder' => 4, 'otherdata' => 'To become 2'));
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update_field_with_unique_index($tablename, 'sortorder',
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array(1 => 4, 2 => 1, 3 => 3, 4 => 2), array('otherid' => 2));
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$this->assertEquals(array(
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3 => (object) array('id' => 3, 'otherid' => 1, 'sortorder' => 1, 'otherdata' => 'Other 1'),
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4 => (object) array('id' => 4, 'otherid' => 1, 'sortorder' => 2, 'otherdata' => 'Other 2'),
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), $DB->get_records($tablename, array('otherid' => 1), 'sortorder'));
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$this->assertEquals(array(
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2 => (object) array('id' => 2, 'otherid' => 2, 'sortorder' => 1, 'otherdata' => 'To become 1'),
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6 => (object) array('id' => 6, 'otherid' => 2, 'sortorder' => 2, 'otherdata' => 'To become 2'),
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5 => (object) array('id' => 5, 'otherid' => 2, 'sortorder' => 3, 'otherdata' => 'To stay at 3'),
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1 => (object) array('id' => 1, 'otherid' => 2, 'sortorder' => 4, 'otherdata' => 'To become 4'),
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), $DB->get_records($tablename, array('otherid' => 2), 'sortorder'));
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}
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}
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