MC-33069: Stabilize Unit tests

Author: StasKozar

app/code/Magento/PageCache/Controller/Block/Render.php

@@ -6,7 +6,9 @@
  */
 namespace Magento\PageCache\Controller\Block;
 
-class Render extends \Magento\PageCache\Controller\Block
+use Magento\Framework\App\Action\HttpGetActionInterface;
+
+class Render extends \Magento\PageCache\Controller\Block implements HttpGetActionInterface
 {
     /**
      * Returns block content depends on ajax request

lib/internal/Magento/Framework/Archive/Tar.php

@@ -16,7 +16,7 @@
 class Tar extends \Magento\Framework\Archive\AbstractArchive implements \Magento\Framework\Archive\ArchiveInterface
 {
     /**
-     * Tar block size
+     * Define acceptable tar block size.
      *
      * @const int
      */

lib/internal/Magento/Framework/View/Helper/PathPattern.php

@@ -39,7 +39,7 @@ public function translatePatternFromGlob($path)
     protected function translateGroupsFromGlob($pattern)
     {
         preg_match_all('~\\\\\\{[^,\\}]+(?:,[^,\\}]*)*\\\\\\}~', $pattern, $matches, PREG_OFFSET_CAPTURE);
-        for ($index = count($matches[0]) - 1; $index >= 0; $index -= 1) {
+        for ($index = count($matches[0]) - 1; $index >= 0; --$index) {
             list($match, $offset) = $matches[0][$index];
             $replacement = substr_replace($match, '(?:', 0, 2);
             $replacement = substr_replace($replacement, ')', -2);
@@ -65,7 +65,7 @@ protected function translateGroupsFromGlob($pattern)
     protected function translateCharacterGroupsFromGlob($pattern)
     {
         preg_match_all('~\\\\\\[(\\\\\\!)?[^\\]]+\\\\\\]~i', $pattern, $matches, PREG_OFFSET_CAPTURE);
-        for ($index = count($matches[0]) - 1; $index >= 0; $index -= 1) {
+        for ($index = count($matches[0]) - 1; $index >= 0; --$index) {
             list($match, $offset) = $matches[0][$index];
             $exclude = !empty($matches[1][$index][0]);
             $replacement = substr_replace($match, '[' . ($exclude ? '^' : ''), 0, $exclude ? 4 : 2);

setup/src/Magento/Setup/Fixtures/Quote/QuoteGenerator.php

@@ -583,7 +583,7 @@ private function prepareQueryTemplates()
      * @param array $replacements
      * @return void
      */
-    protected function query($table, ... $replacements)
+    protected function query($table, ...$replacements)
     {
         $query = $this->queryTemplates[$table];
         foreach ($replacements as $data) {

setup/src/Magento/Setup/Test/Unit/Model/Customer/CustomerDataGeneratorTest.php

@@ -40,6 +40,11 @@ class CustomerDataGeneratorTest extends TestCase
      */
     private $customerGenerator;
 
+    /**
+     * @var CollectionFactory|MockObject
+     */
+    private $groupCollectionFactoryMock;
+
     protected function setUp(): void
     {
         $this->groupCollectionFactoryMock = $this->getMockBuilder(CollectionFactory::class)