MC-39923: Stabilize Integration Tests (PageBuilder)

- ProductTest::testImportExport with data set "simple-product" fails on Jenkins
magento-commerce/magento2ce@bc1c088

Author: loginesta

dev/tests/integration/testsuite/Magento/CatalogImportExport/Model/AbstractProductExportImportTestCase.php

@@ -68,6 +68,11 @@ abstract class AbstractProductExportImportTestCase extends \PHPUnit\Framework\Te
      */
     private $writer;
 
+    /**
+     * @var string
+     */
+    private $csvFile;
+
     /**
      * @inheritdoc
      */
@@ -87,6 +92,11 @@ protected function setUp(): void
     protected function tearDown(): void
     {
         $this->executeFixtures($this->fixtures, true);
+
+        if ($this->csvFile !== null) {
+            $directoryWrite = $this->fileSystem->getDirectoryWrite(DirectoryList::VAR_DIR);
+            $directoryWrite->delete($this->csvFile);
+        }
     }
 
     /**
@@ -104,6 +114,7 @@ protected function tearDown(): void
      */
     public function testImportExport(array $fixtures, array $skus, array $skippedAttributes = []): void
     {
+        $this->csvFile = null;
         $this->fixtures = $fixtures;
         $this->executeFixtures($fixtures);
         $this->modifyData($skus);
@@ -378,6 +389,7 @@ protected function executeImportReplaceTest(
     private function exportProducts(\Magento\CatalogImportExport\Model\Export\Product $exportProduct = null)
     {
         $csvfile = uniqid('importexport_') . '.csv';
+        $this->csvFile = $csvfile;
 
         $exportProduct = $exportProduct ?: $this->objectManager->create(
             \Magento\CatalogImportExport\Model\Export\Product::class