Added tests for begin transactions inc cross-group

tests/ProtoBufTransactionTest.php

@@ -0,0 +1,57 @@
+<?php
+/**
+ * Copyright 2015 Tom Walder
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Tests for Protocol Buffer Transactions
+ *
+ * @author Tom Walder <tom@docnet.nu>
+ */
+class ProtoBufTransactionTest extends GDSTest {
+
+    /**
+     * Start transaction
+     */
+    public function testBeginTransactionBasic()
+    {
+        $obj_request = new \google\appengine\datastore\v4\BeginTransactionRequest();
+        $obj_response = new \google\appengine\datastore\v4\BeginTransactionResponse();
+        $obj_response->setTransaction('test-txn-ref-123');
+        $this->apiProxyMock->expectCall('datastore_v4', 'BeginTransaction', $obj_request, $obj_response);
+        $_SERVER['APPLICATION_ID'] = 'DatasetTest';
+        $obj_gateway = $this->getMockBuilder('\\GDS\\Gateway\\ProtoBuf')->setMethods(['withTransaction','fetchById'])->getMock();
+        $obj_gateway->expects($this->once())->method('withTransaction')->with(
+            $this->equalTo('test-txn-ref-123')
+        )->willReturn($obj_gateway);
+        $obj_store = new GDS\Store('Book', $obj_gateway);
+        $obj_store->beginTransaction();
+        $obj_store->fetchById('123456');
+        $this->apiProxyMock->verify();
+    }
+
+    /**
+     * Start cross-group transaction
+     */
+    public function testBeginCrossGroupTransaction()
+    {
+        $obj_request = new \google\appengine\datastore\v4\BeginTransactionRequest();
+        $obj_request->setCrossGroup(TRUE);
+        $this->apiProxyMock->expectCall('datastore_v4', 'BeginTransaction', $obj_request, new \google\appengine\datastore\v4\BeginTransactionResponse());
+        $this->createBasicStore()->beginTransaction(TRUE);
+        $this->apiProxyMock->verify();
+    }
+
+}