<?php
// +----------------------------------------------------------------------+
// | PHP versions 4 and 5                                                 |
// +----------------------------------------------------------------------+
// | Copyright (c) 1998-2005 Lukas Smith, Lorenzo Alberton                |
// | All rights reserved.                                                 |
// +----------------------------------------------------------------------+
// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
// | API as well as database abstraction for PHP applications.            |
// | This LICENSE is in the BSD license style.                            |
// |                                                                      |
// | Redistribution and use in source and binary forms, with or without   |
// | modification, are permitted provided that the following conditions   |
// | are met:                                                             |
// |                                                                      |
// | Redistributions of source code must retain the above copyright       |
// | notice, this list of conditions and the following disclaimer.        |
// |                                                                      |
// | Redistributions in binary form must reproduce the above copyright    |
// | notice, this list of conditions and the following disclaimer in the  |
// | documentation and/or other materials provided with the distribution. |
// |                                                                      |
// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
// | Lukas Smith nor the names of his contributors may be used to endorse |
// | or promote products derived from this software without specific prior|
// | written permission.                                                  |
// |                                                                      |
// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
// | POSSIBILITY OF SUCH DAMAGE.                                          |
// +----------------------------------------------------------------------+
// | Author: Lorenzo Alberton <l dot alberton at quipo dot it>            |
// +----------------------------------------------------------------------+
//
// $Id$

class MDB2_Function_TestCase extends MDB2_TestCase
{
    function setUp() {
        parent::setUp();
        $this->db->loadModule('Function', null, true);
    }

    /**
     * Test functionTable()
     */
    function testFunctionTable()
    {
        if (!$this->methodExists($this->db->function, 'functionTable')) {
            return;
        }

        $functionTable_clause = $this->db->function->functionTable();
        $query = 'SELECT 1 '.$functionTable_clause;
        $result = $this->db->queryOne($query);
        if (PEAR::isError($result)) {
            $this->assertFalse(true, 'Error fetching from function table');
        } else {
            $this->assertEquals('1', $result, 'Error fetching value from function table');
        }
    }

    /**
     * Test now()
     */
    function testNow()
    {
        if (!$this->methodExists($this->db->function, 'now')) {
            return;
        }

        $tests = array(
            'timestamp' => '/^\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}$/',
            'date' => '/^\d{4}-\d{2}-\d{2}$/',
            'time' => '/^\d{2}:\d{2}:\d{2}$/',
        );

        foreach ($tests as $type => $regexp) {
            $functionTable_clause = $this->db->function->functionTable();
            $now_clause = $this->db->function->now($type);
            $query = 'SELECT '.$now_clause . $functionTable_clause;
            $result = $this->db->queryOne($query, $type);
            if (PEAR::isError($result)) {
                $this->assertFalse(true, 'Error getting '.$type);
            } else {
                $this->assertRegExp($regexp, $result, 'Error: not a proper '.$type);
            }
        }
    }

    /**
     * Test substring()
     */
    function testSubstring()
    {
        if (!$this->methodExists($this->db->function, 'substring')) {
            return;
        }
        $data = $this->getSampleData(1234);

        $stmt = $this->db->prepare('INSERT INTO users (' . implode(', ', array_keys($this->fields)) . ') VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)', array_values($this->fields), false);
        $result = $stmt->execute(array_values($data));
        $stmt->free();

        if (PEAR::isError($result)) {
            $this->assertTrue(false, 'Error executing prepared query'.$result->getMessage());
        }

        $substring_clause = $this->db->function->substring('user_name', 1, 4);
        $query = 'SELECT '.$substring_clause .' FROM users';
        $result = $this->db->queryOne($query);
        if (PEAR::isError($result)) {
            $this->assertFalse(true, 'Error getting substring');
        } else {
            $this->assertEquals('user', $result, 'Error: substrings not equals');
        }

        $substring_clause = $this->db->function->substring('user_name', 5, 1);
        $query = 'SELECT '.$substring_clause .' FROM users';
        $result = $this->db->queryOne($query);
        if (PEAR::isError($result)) {
            $this->assertFalse(true, 'Error getting substring');
        } else {
            $this->assertEquals('_', $result, 'Error: substrings not equals');
        }

        //test NULL 2nd parameter
        $substring_clause = $this->db->function->substring('user_name', 6);
        $query = 'SELECT '.$substring_clause .' FROM users';
        $result = $this->db->queryOne($query);
        if (PEAR::isError($result)) {
            $this->assertFalse(true, 'Error getting substring');
        } else {
            $this->assertEquals('1234', $result, 'Error: substrings not equals');
        }
    }

    /**
     * Test concat()
     */
    function testConcat()
    {
        if (!$this->methodExists($this->db->function, 'concat')) {
            return;
        }

        $functionTable_clause = $this->db->function->functionTable();
        $concat_clause = $this->db->function->concat($this->db->quote('time', 'text'), $this->db->quote('stamp', 'text'));
        $query = 'SELECT '.$concat_clause . $functionTable_clause;
        $result = $this->db->queryOne($query);
        if (PEAR::isError($result)) {
            $this->assertFalse(true, 'Error getting substring');
        } else {
            $this->assertEquals('timestamp', $result, 'Error: could not concatenate "time+stamp"');
        }
    }
}
?>