remove unused tests and make new tests.

.gitignore

@@ -1,2 +1,4 @@
 /vendor/
 /composer.lock
+
+/tests/*.db

tests/cfg.php

@@ -7,6 +7,8 @@
 * There is no `$active_group` option, this library will choose first index (in this example, it was `mysql-1`).
 * `$query_builder` option is always `true`, that was the purpose of this library.
 * 
+* @return array
+* 
 */
 
 return array(
@@ -31,33 +33,20 @@
 		'failover' => array(),
 		'save_queries' => TRUE
 	),
-	'firebird-1' => array(
-		'dsn' => '',
+	'firebirdsql' => array(
 		'hostname' => 'localhost',
 		'username' => 'sysdba',
 		'password' => 'masterkey',
-		'database' => '/var/www/database/firebird/ci3db_test.fdb',
+		'database' => 'employee',
 		'dbdriver' => 'ibase',
-		'dbprefix' => '',
-		'pconnect' => TRUE,
-		'db_debug' => true,
-		'cache_on' => FALSE,
-		'cachedir' => '',
-		'char_set' => 'utf8',
-		'dbcollat' => 'utf8_general_ci',
-		'swap_pre' => '',
-		'encrypt' => FALSE,
-		'compress' => FALSE,
-		'stricton' => FALSE,
-		'failover' => array(),
-		'save_queries' => TRUE
-	)
+		'pconnect' => true,
+	),
 );
 
 /**
-* default CodeIgniter3 database config file format.
+* example CodeIgniter3 default database config file.
 * 
-* @link https://github.com/bcit-ci/CodeIgniter/blob/develop/application/config/database.php
+* @see https://github.com/bcit-ci/CodeIgniter/blob/develop/application/config/database.php
 * 
 */
 $active_group = 'db-1';

tests/firebirdsql.php

@@ -0,0 +1,52 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+define('BASEPATH', __DIR__ . '/../vendor/codeigniter/framework/system/'); // endslash!
+
+/* LI-V3.0.4.33054 Firebird 3.0 (superserver) */
+
+$ci3db =& anovsiradj\CI3DataBase::init();
+$ci3db->set_db_config_file(__DIR__ . '/cfg.php');
+
+$dsn = 'ibase://sysdba:masterkey@localhost/employee?pconnect=true';
+$ci3db->set_db_config('firebirdsql-dsn', $dsn);
+
+try {
+	// throw new Exception('${ibase_errmsg}', 1);
+
+	/**
+	* cannot using $db0 and $db1
+	* @see https://bugs.php.net/bug.php?id=72175
+	*/
+	$db =& $ci3db->db('firebirdsql');
+	// $db =& $ci3db->db('firebirdsql-dsn');
+
+} catch (\Exception $e) {
+	echo 'can\'t firebirdsql.', PHP_EOL, $e->getMessage(), PHP_EOL;
+	die();
+}
+
+$db->trans_start();
+if ($db->query('SELECT 1 FROM rdb$relations WHERE rdb$relation_name = UPPER(\'ci3db_tests\')')->num_rows() < 1) {
+	$db->query('
+		CREATE TABLE ci3db_tests(
+			k INTEGER GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
+			v BLOB SUB_TYPE TEXT
+		)
+	');
+}
+$db->trans_complete();
+
+$db->insert(strtoupper('ci3db_tests'), [strtoupper('v') => 'lorem ipsum']);
+$db->insert(strtoupper('ci3db_tests'), [strtoupper('v') => 'anovsiradj']);
+$db->insert(strtoupper('ci3db_tests'), [strtoupper('v') => 'foo bar']);
+
+$q = $db->from(strtoupper('ci3db_tests'))->get();
+dump(
+	$q->num_rows(),
+	$q->first_row(),
+	$q->last_row()
+);
+
+$db->simple_query('DROP TABLE ci3db_tests');
+
+$db->close();

tests/sqlite3.php

@@ -0,0 +1,43 @@
+<?php
+require __DIR__ . '/../vendor/autoload.php';
+define('BASEPATH', __DIR__ . '/../vendor/codeigniter/framework/system/'); // endslash!
+
+$ci3db =& \anovsiradj\CI3DataBase::init();
+$ci3db->set_db_config('sqlite3', [
+	'dbdriver' => 'sqlite3',
+	'database' => (__DIR__ . '/sqlite3.db'),
+]);
+
+$dsn = 'sqlite3://whatever/' . __DIR__ . '/sqlite3.db';
+$ci3db->set_db_config('sqlite3-dsn', $dsn);
+
+try {
+	// throw new Exception('${sqlite_error_string}', 1);
+	$db0 =& $ci3db->db('sqlite3');
+	$db1 =& $ci3db->db('sqlite3-dsn');
+} catch (\Exception $e) {
+	echo 'can\'t sqlite3.', PHP_EOL, $e->getMessage(), PHP_EOL;
+	die();
+}
+
+$db0->simple_query('CREATE TABLE IF NOT EXISTS ci3db_tests(k integer PRIMARY KEY AUTOINCREMENT, v TEXT)');
+
+$db1->insert('ci3db_tests', ['v' => 'lorem ipsum']);
+dump($db1->insert_id());
+
+$db0->set('v', 'foo bar')->update('ci3db_tests');
+dump($db0->affected_rows());
+
+$q = $db1->from('ci3db_tests')->get();
+dump(
+	$q->num_rows(),
+	$q->row()
+);
+
+$q = $db0->where('k !=', null)->delete('ci3db_tests');
+dump( $q, $db0->affected_rows() );
+
+$db1->simple_query('DROP TABLE ci3db_tests');
+
+$db0->close();
+$db1->close();