Fix PageCache: async rendering of blocks can corrupt layout cache #8554 #9050 #9560

Adapted PageCache and Framework tests

Author: adrian-martinez-interactiv4

dev/tests/integration/testsuite/Magento/Framework/View/Layout/MergeTest.php

@@ -65,6 +65,11 @@ class MergeTest extends \PHPUnit\Framework\TestCase
      */
     protected $pageConfig;
 
+    /**
+     * @var \Magento\Framework\View\Layout\LayoutCacheKeyInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $layoutCacheKeyMock;
+
     protected function setUp()
     {
         $files = [];
@@ -119,6 +124,11 @@ function ($filename) use ($fileDriver) {
             )
         );
 
+        $this->layoutCacheKeyMock = $this->getMockForAbstractClass(\Magento\Framework\View\Layout\LayoutCacheKeyInterface::class);
+        $this->layoutCacheKeyMock->expects($this->any())
+            ->method('getCacheKeys')
+            ->willReturn([]);
+
         $this->_model = $objectHelper->getObject(
             \Magento\Framework\View\Model\Layout\Merge::class,
             [
@@ -134,6 +144,7 @@ function ($filename) use ($fileDriver) {
                 'logger' => $this->_logger,
                 'readFactory' => $readFactory,
                 'pageConfig' => $this->pageConfig,
+                'layoutCacheKey' => $this->layoutCacheKeyMock,
             ]
         );
     }

dev/tests/integration/testsuite/Magento/Framework/View/Model/Layout/MergeTest.php

@@ -18,6 +18,11 @@ class MergeTest extends \PHPUnit\Framework\TestCase
      */
     protected $model;
 
+    /**
+     * @var \Magento\Framework\View\Layout\LayoutCacheKeyInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    protected $layoutCacheKeyMock;
+
     protected function setUp()
     {
         $objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
@@ -62,9 +67,17 @@ protected function setUp()
         $link2->setLayoutUpdateId($layoutUpdate2->getId());
         $link2->save();
 
+        $this->layoutCacheKeyMock = $this->getMockForAbstractClass(\Magento\Framework\View\Layout\LayoutCacheKeyInterface::class);
+        $this->layoutCacheKeyMock->expects($this->any())
+            ->method('getCacheKeys')
+            ->willReturn([]);
+
         $this->model = $objectManager->create(
             \Magento\Framework\View\Model\Layout\Merge::class,
-            ['theme' => $theme]
+            [
+                'theme' => $theme,
+                'layoutCacheKey' => $this->layoutCacheKeyMock,
+            ]
         );
     }
 

lib/internal/Magento/Framework/View/Test/Unit/Model/Layout/MergeTest.php

@@ -59,7 +59,11 @@ protected function setUp()
         $this->appState = $this->getMockBuilder(\Magento\Framework\App\State::class)
             ->disableOriginalConstructor()
             ->getMock();
+
         $this->layoutCacheKeyMock = $this->getMockForAbstractClass(\Magento\Framework\View\Layout\LayoutCacheKeyInterface::class);
+        $this->layoutCacheKeyMock->expects($this->any())
+            ->method('getCacheKeys')
+            ->willReturn([]);
 
         $this->model = $this->objectManagerHelper->getObject(
             \Magento\Framework\View\Model\Layout\Merge::class,
@@ -68,7 +72,7 @@ protected function setUp()
                 'layoutValidator' => $this->layoutValidator,
                 'logger' => $this->logger,
                 'appState' => $this->appState,
-                'layoutCacheKey' => $this->layoutCacheKeyMock
+                'layoutCacheKey' => $this->layoutCacheKeyMock,
             ]
         );
     }
@@ -83,9 +87,6 @@ public function testValidateMergedLayoutThrowsException()
             'Please correct the XSD data and try again.',
         ];
         $this->scope->expects($this->once())->method('getId')->willReturn(1);
-        $this->layoutCacheKeyMock->expects($this->once())
-            ->method('getCacheKeys')
-            ->willReturn([]);
         $this->layoutValidator->expects($this->once())
             ->method('isValid')
             ->willThrowException(