AC-1193: Fix broken MFTF tests

Author: xmav

dev/tests/unit/Util/EntityDataObjectBuilder.php

@@ -18,7 +18,8 @@ class EntityDataObjectBuilder
  "name" => "Hopper",
  "gpa" => "3.5678",
  "phone" => "5555555",
- "isprimary" => "true"
+ "isprimary" => "true",
+ "empty_string" => ""
  ];
 
  /**

dev/tests/unit/Util/OperationElementBuilder.php

@@ -20,7 +20,8 @@ class OperationElementBuilder
  'name' => 'string',
  'gpa' => 'number',
  'phone' => 'integer',
- 'isPrimary' => 'boolean'
+ 'isPrimary' => 'boolean',
+ 'empty_string' => 'string'
  ];
 
  /**

src/Magento/FunctionalTestingFramework/DataGenerator/Persist/OperationDataArrayResolver.php

@@ -403,7 +403,7 @@ private function resolvePrimitiveReferenceElement($entityObject, $operationEleme
  // If data was defined at all, attempt to put it into operation data array
  // If data was not defined, and element is required, throw exception
  // If no data is defined, don't input defaults per primitive into operation data array
- if ($elementData !== null) {
+ if ($elementData !== null && $elementData !== '') {
  if (array_key_exists($operationElement->getKey(), $entityObject->getUniquenessData())) {
  $uniqueData = $entityObject->getUniquenessDataByName($operationElement->getKey());
  if ($uniqueData === 'suffix') {

src/Magento/FunctionalTestingFramework/Util/TestGenerator.php

@@ -1948,7 +1948,7 @@ private function addUniquenessFunctionCall($input, $wrapWithDoubleQuotes = true)
  */
  private function wrapWithDoubleQuotes($input)
  {
- if ($input === null) {
+ if ($input === null || $input === '') {
  return '';
  }
  //Only replace " with \" so that it doesn't break outer string.