Merge branch 'develop' of git://github.com/EllisLab/CodeIgniter into develop

Conflicts:
	system/core/Loader.php
	system/database/DB_query_builder.php
	system/database/drivers/cubrid/cubrid_driver.php
	system/database/drivers/mssql/mssql_driver.php
	system/database/drivers/mysql/mysql_driver.php
	system/database/drivers/mysqli/mysqli_driver.php
	system/database/drivers/oci8/oci8_driver.php
	system/database/drivers/odbc/odbc_driver.php
	system/database/drivers/pdo/pdo_driver.php
	system/database/drivers/postgre/postgre_driver.php
	system/database/drivers/sqlite/sqlite_driver.php
	user_guide_src/source/changelog.rst
	user_guide_src/source/database/query_builder.rst

2 files changed, 49 insertions, 0 deletions

diff --git a/tests/codeigniter/database/DB_test.php b/tests/codeigniter/database/DB_test.php
new file mode 100644
index 000000000..9b93e223d
--- /dev/null
+++ b/tests/codeigniter/database/DB_test.php
@@ -0,0 +1,49 @@
+<?php
+
+class DB_test extends CI_TestCase {
+
+	// ------------------------------------------------------------------------
+
+	public function test_db_invalid()
+	{
+		$connection = new Mock_Database_DB(array(
+			'undefined' => array(
+				'dsn' => '',
+				'hostname' => 'undefined',
+				'username' => 'undefined',
+				'password' => 'undefined',
+				'database' => 'undefined',
+				'dbdriver' => 'undefined',
+			),
+		));
+
+		$this->setExpectedException('InvalidArgumentException', 'CI Error: Invalid DB driver');
+
+		Mock_Database_DB::DB($connection->set_dsn('undefined'), TRUE);
+	}
+
+	// ------------------------------------------------------------------------
+
+	public function test_db_valid()
+	{
+		$config = Mock_Database_DB::config(DB_DRIVER);
+		$connection = new Mock_Database_DB($config);
+		$db = Mock_Database_DB::DB($connection->set_dsn(DB_DRIVER), TRUE);
+
+		$this->assertTrue($db instanceof CI_DB);
+		$this->assertTrue($db instanceof CI_DB_Driver);
+	}
+
+	// ------------------------------------------------------------------------
+
+	public function test_db_failover()
+	{
+		$config = Mock_Database_DB::config(DB_DRIVER);
+		$connection = new Mock_Database_DB($config);
+		$db = Mock_Database_DB::DB($connection->set_dsn(DB_DRIVER.'_failover'), TRUE);
+
+		$this->assertTrue($db instanceof CI_DB);
+		$this->assertTrue($db instanceof CI_DB_Driver);
+	}
+	
+}
\ No newline at end of file
diff --git a/tests/codeigniter/database/query_builder/.gitkeep b/tests/codeigniter/database/query_builder/.gitkeep
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/tests/codeigniter/database/query_builder/.gitkeep