[ticket/11959] Add unit tests.

PHPBB3-11959

tests/functions/generate_string_list.php

@@ -0,0 +1,60 @@
+<?php
+/**
+*
+* @package testing
+* @copyright (c) 2014 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+*/
+
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions_display.php';
+require_once dirname(__FILE__) . '/../../phpBB/includes/functions.php';
+
+class phpbb_generate_string_list_test extends phpbb_test_case
+{
+	public $user;
+
+	public function setUp()
+	{
+		parent::setUp();
+
+		$this->user = new \phpbb\user();
+		$this->user->data = array('user_lang' => 'en');
+		$this->user->add_lang('common');
+	}
+
+	public function generate_string_list_data()
+	{
+		return array(
+			array(
+				array(),
+				'',
+			),
+			array(
+				array('A'),
+				'A',	
+			),
+			array(
+				array(2 => 'A', 3 => 'B'),
+				'A and B',
+			),
+			array(
+				array('A' => 'A', 'B' => 'B', 'C' => 'C'),
+				'A, B, and C',
+			),
+			array(
+				array('A', 'B', 'C', 'D'),
+				'A, B, C, and D',
+			)
+		);
+	}
+
+	/**
+	* @dataProvider generate_string_list_data
+	*/
+	public function test_generate_string_list($items, $expected_result)
+	{
+		$result = phpbb_generate_string_list($items, $this->user);
+		$this->assertEquals($expected_result, $result);
+	}
+}