MTA-1478: Resolve issue with generating repository xml files using collection provider

Author: orykh

dev/tests/functional/lib/Magento/Mtf/Util/Generate/Repository/CollectionProvider.php

@@ -62,7 +62,7 @@ public function getCollection(array $fixture)
     {
         $type = $fixture['type'];
         $method = $type . 'Collection';
-        if (!method_exists($this, $method)) {
+        if (!method_exists($this, $method) || empty($fixture['collection'])) {
             return [];
         }
 

dev/tests/functional/tests/app/Magento/Checkout/Test/Fixture/Cart.xml

@@ -11,7 +11,6 @@
     <module>Magento_Checkout</module>
     <type>flat</type>
     <entity_type>quote</entity_type>
-    <collection>Magento\Checkout\Model\Resource\Cart</collection>
     <repository_class>Magento\Checkout\Test\Repository\Cart</repository_class>
     <handler_interface>Magento\Checkout\Test\Handler\Cart\CartInterface</handler_interface>
     <fields>

dev/tests/functional/tests/app/Magento/Checkout/Test/etc/fixture.xml

@@ -9,6 +9,5 @@
     <cart module="Magento_Checkout">
         <type>flat</type>
         <entity_type>quote</entity_type>
-        <collection>Magento\Checkout\Model\Resource\Cart</collection>
     </cart>
 </fixture>

dev/tests/functional/utils/bootstrap.php

@@ -16,3 +16,6 @@
 
 $objectManager = \Magento\Mtf\ObjectManagerFactory::getObjectManager();
 \Magento\Mtf\ObjectManagerFactory::configure($objectManager);
+
+$magentoObjectManagerFactory = \Magento\Framework\App\Bootstrap::createObjectManagerFactory(BP, $_SERVER);
+$magentoObjectManager = $magentoObjectManagerFactory->create($_SERVER);

dev/tests/functional/utils/generate/factory.php

@@ -5,7 +5,5 @@
  */
 require_once dirname(__DIR__) . '/' . 'bootstrap.php';
 
-$magentoObjectManagerFactory = \Magento\Framework\App\Bootstrap::createObjectManagerFactory(BP, $_SERVER);
-$magentoObjectManager = $magentoObjectManagerFactory->create($_SERVER);
 $magentoObjectManager->create('Magento\Mtf\Util\Generate\Factory')->launch();
 \Magento\Mtf\Util\Generate\GenerateResult::displayResults();

dev/tests/functional/utils/generate/fixture.php

@@ -5,7 +5,5 @@
  */
 require_once dirname(__DIR__) . '/' . 'bootstrap.php';
 
-$magentoObjectManagerFactory = \Magento\Framework\App\Bootstrap::createObjectManagerFactory(BP, $_SERVER);
-$magentoObjectManager = $magentoObjectManagerFactory->create($_SERVER);
 $fieldsProvider = $magentoObjectManager->create('\Magento\Mtf\Util\Generate\Fixture\FieldsProvider');
 $objectManager->create('Magento\Mtf\Util\Generate\Fixture', ['fieldsProvider' => $fieldsProvider])->launch();