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Code Editor : string_filter_test.php

<?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/>.

declare(strict_types=1);

namespace core_table\local\filter;

use advanced_testcase;
use TypeError;

/**
 * Unit tests for core_table\local\filter\string_filter.
 *
 * @package   core_table
 * @category  test
 * @copyright 2020 Simey Lameze <simey@moodle.com>
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class string_filter_test extends advanced_testcase {
    /**
     * Ensure that the add_filter_value function works as expected with valid values.
     */
    public function test_add_filter_value_string(): void {
        $filter = new string_filter('example');

// Initially an empty list.
        $this->assertEmpty($filter->get_filter_values());

// Adding a value should return that value.
        $filter->add_filter_value('apple');
        $this->assertSame([
            'apple',
        ], $filter->get_filter_values());

// Adding a second value should add that value.
        // The values should sorted.
        $filter->add_filter_value('pear');
        $this->assertSame([
            'apple',
            'pear',
        ], $filter->get_filter_values());

// Adding a duplicate value should not lead to that value being added again.
        $filter->add_filter_value('apple');
        $this->assertSame([
            'apple',
            'pear',
        ], $filter->get_filter_values());
    }

/**
     * Ensure that the add_filter_value function rejects invalid types.
     *
     * @dataProvider add_filter_value_invalid_types_provider
     * @param mixed $value
     * @param string $type
     */
    public function test_add_filter_value_type_invalid($value, string $type): void {
        $filter = new string_filter('example');

// Adding empty string is not supported.
        $this->expectException(TypeError::class);
        $this->expectExceptionMessage("The value supplied was of type '{$type}'. A string was expected.");
        $filter->add_filter_value($value);
    }

/**
     * Data provider for add_filter_value tests with invalid types.
     *
     * @return array
     */
    public function add_filter_value_invalid_types_provider(): array {
        return [
            'Null' => [null, 'NULL'],
            '1' => [1, 'integer'],
            '2' => [2, 'integer'],
            'Float 1.0' => [1.0, 'double'],
            'Float 1.1' => [1.1, 'double'],
            'bool' => [false, 'boolean'],
            'array' => [[], 'array'],
            'stdClass' => [(object) [], 'stdClass'],

// Note: The comparison value will be a fully-qualified class name.
            'Class' => [new filter('example'), filter::class],
        ];
    }
}

${this.title}

Code Editor : string_filter_test.php