fix failing tests. test and mocked sources would cause exceptions

lib/Cake/Model/ConnectionManager.php

@@ -78,7 +78,6 @@ class ConnectionManager {
  *
  * @param string $name The name of the DataSource, as defined in app/Config/database.php
  * @return DataSource Instance
- * @throws MissingDatasourceConfigException
  * @throws MissingDatasourceException
  */
 	public static function getDataSource($name) {

lib/Cake/Test/Case/Model/Datasource/DboSourceTest.php

@@ -21,6 +21,9 @@ App::uses('Model', 'Model');
 App::uses('AppModel', 'Model');
 App::uses('DataSource', 'Model/Datasource');
 App::uses('DboSource', 'Model/Datasource');
+App::uses('DboTestSource', 'Model/Datasource');
+App::uses('DboSecondTestSource', 'Model/Datasource');
+App::uses('MockDataSource', 'Model/Datasource');
 require_once dirname(dirname(__FILE__)) . DS . 'models.php';
 
 class MockPDO extends PDO {

lib/Cake/Test/Case/Model/ModelIntegrationTest.php

@@ -20,6 +20,7 @@
 
 require_once dirname(__FILE__) . DS . 'ModelTestBase.php';
 App::uses('DboSource', 'Model/Datasource');
+App::uses('DboMock', 'Model/Datasource');
 
 /**
  * DboMock class

lib/Cake/Test/Case/Model/ModelWriteTest.php

@@ -17,6 +17,11 @@
  * @since         CakePHP(tm) v 1.2.0.4206
  * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
  */
+App::uses('MockTransactionDboSource', 'Model/Datasource');
+App::uses('MockTransactionAssociatedDboSource', 'Model/Datasource');
+App::uses('MockManyTransactionDboSource', 'Model/Datasource');
+App::uses('MockAssociatedTransactionDboSource', 'Model/Datasource');
+
 require_once dirname(__FILE__) . DS . 'ModelTestBase.php';
 /**
  * ModelWriteTest