MAGETWO-66318: Remove usages of serialize/unserialize in CmsSampleData

- isolate unstable function tests

Author: Joan He

dev/tests/functional/tests/app/Magento/Bundle/Test/TestCase/CreateBundleProductEntityTest.xml

@@ -332,7 +332,7 @@
             <data name="product/data/category" xsi:type="string">category_%isolation%</data>
             <data name="product/data/shipment_type" xsi:type="string">Together</data>
             <data name="product/data/bundle_selections/dataset" xsi:type="string">one_options_assigned_simple_big_qty</data>
-            <data name="tag" xsi:type="string">test_type:acceptance_test</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test, stable:no</data>
             <constraint name="Magento\Catalog\Test\Constraint\AssertProductSaveMessage" />
             <constraint name="Magento\Catalog\Test\Constraint\AssertProductInGrid" />
             <constraint name="Magento\Bundle\Test\Constraint\AssertBundleInCategory" />

dev/tests/functional/tests/app/Magento/Catalog/Test/TestCase/Category/CreateCategoryEntityTest.xml

@@ -144,7 +144,7 @@
             <constraint name="Magento\Catalog\Test\Constraint\AssertCategoryPage" />
         </variation>
         <variation name="CreateCategoryEntityTestVariation8_WithProducts" summary="Assign Products at the Category Level" ticketId="MAGETWO-16351">
-            <data name="tag" xsi:type="string">test_type:acceptance_test, test_type:extended_acceptance_test</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test, test_type:extended_acceptance_test, stable:no</data>
             <data name="addCategory" xsi:type="string">addSubcategory</data>
             <data name="category/data/parent_id/dataset" xsi:type="string">default_category</data>
             <data name="category/data/is_active" xsi:type="string">Yes</data>

dev/tests/functional/tests/app/Magento/GroupedProduct/Test/TestCase/CreateGroupedProductEntityTest.xml

@@ -8,7 +8,7 @@
 <config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../../../../vendor/magento/mtf/etc/variations.xsd">
     <testCase name="Magento\GroupedProduct\Test\TestCase\CreateGroupedProductEntityTest" summary="Create Grouped Product" ticketId="MAGETWO-24877">
         <variation name="CreateGroupedProductEntityTestVariation1" summary="Create Grouped Product and Assign It to the Category" ticketId="MAGETWO-13610">
-            <data name="tag" xsi:type="string">test_type:acceptance_test, test_type:extended_acceptance_test</data>
+            <data name="tag" xsi:type="string">test_type:acceptance_test, test_type:extended_acceptance_test, stable:no</data>
             <data name="product/data/url_key" xsi:type="string">test-grouped-product-%isolation%</data>
             <data name="product/data/name" xsi:type="string">GroupedProduct %isolation%</data>
             <data name="product/data/sku" xsi:type="string">GroupedProduct_sku%isolation%</data>