MAGETWO-55657: Implement new service OrderInvoice

 - fix ST

Author: NadiyaS

app/code/Magento/Sales/Test/Unit/Model/Order/Invoice/Sender/EmailSenderTest.php

@@ -107,6 +107,7 @@ protected function setUp()
             ->getMock();
 
         $this->storeMock = $this->getMockBuilder(\Magento\Store\Model\Store::class)
+            ->setMethods(['getStoreId'])
             ->disableOriginalConstructor()
             ->getMock();
 

dev/tests/api-functional/testsuite/Magento/Sales/Service/V1/OrderInvoiceCreateTest.php

@@ -38,7 +38,7 @@ protected function setUp()
     public function testInvoiceCreate()
     {
         /** @var \Magento\Sales\Model\Order $existingOrder */
-        $existingOrder = $this->objectManager->create('Magento\Sales\Model\Order')
+        $existingOrder = $this->objectManager->create(\Magento\Sales\Model\Order::class)
             ->loadByIncrementId('100000001');
 
         $serviceInfo = [
@@ -63,7 +63,7 @@ public function testInvoiceCreate()
         ];
 
         /** @var \Magento\Sales\Api\Data\OrderItemInterface $item */
-        foreach($existingOrder->getAllItems() as $item) {
+        foreach ($existingOrder->getAllItems() as $item) {
             $requestData['items'][] = [
                 'order_item_id' => $item->getItemId(),
                 'qty' => $item->getQtyOrdered()
@@ -81,7 +81,7 @@ public function testInvoiceCreate()
         }
 
         /** @var \Magento\Sales\Model\Order $updatedOrder */
-        $updatedOrder = $this->objectManager->create('Magento\Sales\Model\Order')
+        $updatedOrder = $this->objectManager->create(\Magento\Sales\Model\Order::class)
             ->loadByIncrementId('100000001');
 
         $this->assertNotEquals(