AC-10621::PHPUnit 10 upgrade error: ‘RuntimeException: ObjectManager isn't initialized’

Author: Shradddha

app/code/Magento/Backend/Test/Unit/Block/Widget/Grid/Massaction/ExtendedTest.php

@@ -14,8 +14,10 @@
 use Magento\Backend\Block\Widget\Grid\Massaction;
 use Magento\Backend\Block\Widget\Grid\Massaction\Extended;
 use Magento\Backend\Model\Url;
+use Magento\Directory\Helper\Data as DirectoryHelper;
 use Magento\Framework\App\Request\Http;
 use Magento\Framework\Data\Collection;
+use Magento\Framework\Json\Helper\Data as JsonHelper;
 use Magento\Framework\TestFramework\Unit\Helper\ObjectManager;
 use Magento\Framework\View\Layout;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -98,6 +100,18 @@ protected function setUp(): void
         ];
 
         $objectManagerHelper = new ObjectManager($this);
+        $objects = [
+            [
+                JsonHelper::class,
+                $this->createMock(JsonHelper::class)
+            ],
+            [
+                DirectoryHelper::class,
+                $this->createMock(DirectoryHelper::class)
+            ]
+        ];
+        $objectManagerHelper->prepareObjectManager($objects);
+
         $this->_block = $objectManagerHelper->getObject(
             Extended::class,
             $arguments

app/code/Magento/Backend/Test/Unit/Model/Auth/SessionTest.php

@@ -11,6 +11,7 @@
 use Magento\Backend\Model\Auth\Session;
 use Magento\Framework\Acl;
 use Magento\Framework\Acl\Builder;
+use Magento\Framework\Session\SessionStartChecker;
 use Magento\Framework\Session\Storage;
 use Magento\Framework\Stdlib\Cookie\CookieMetadataFactory;
 use Magento\Framework\Stdlib\Cookie\PhpCookieManager;
@@ -96,6 +97,13 @@ protected function setUp(): void
             ->disableOriginalConstructor()
             ->getMock();
         $objectManager = new ObjectManager($this);
+        $objects = [
+            [
+                SessionStartChecker::class,
+                $this->createMock(SessionStartChecker::class)
+            ]
+        ];
+        $objectManager->prepareObjectManager($objects);
         $this->session = $objectManager->getObject(
             Session::class,
             [
@@ -127,7 +135,8 @@ public function testRefreshAcl($isUserPassedViaParams)
             ->getMock();
         $this->aclBuilder->expects($this->any())->method('getAcl')->willReturn($aclMock);
         $userMock = $this->getMockBuilder(User::class)
-            ->setMethods(['getReloadAclFlag', 'setReloadAclFlag', 'unsetData', 'save'])
+            ->addMethods(['getReloadAclFlag','setReloadAclFlag'])
+            ->onlyMethods(['unsetData', 'save'])
             ->disableOriginalConstructor()
             ->getMock();
         $userMock->expects($this->any())->method('getReloadAclFlag')->willReturn(true);

app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Category/EditTest.php

@@ -117,7 +117,7 @@ class EditTest extends TestCase
      */
     protected function setUp(): void
     {
-        $objectManager = new ObjectManager($this);
+        $this->objectManager = new ObjectManager($this);
 
         $objects = [
             [
@@ -141,7 +141,7 @@ protected function setUp(): void
                 $this->createMock(Session::class)
             ]
         ];
-        $objectManager->prepareObjectManager($objects);
+        $this->objectManager->prepareObjectManager($objects);
 
         $this->categoryMock = $this->createPartialMock(
             Category::class,
@@ -241,7 +241,7 @@ protected function setUp(): void
             ->method('getResultRedirectFactory')
             ->willReturn($this->resultRedirectFactoryMock);
 
-        $this->edit = $objectManager->getObject(
+        $this->edit = $this->objectManager->getObject(
             Edit::class,
             [
                 'context' => $this->contextMock,

app/code/Magento/Catalog/Test/Unit/Controller/Adminhtml/Category/SaveTest.php

@@ -89,7 +89,7 @@ class SaveTest extends TestCase
      */
     protected function setUp(): void
     {
-        $objectManager = new ObjectManager($this);
+        $this->objectManager = new ObjectManager($this);
 
         $objects = [
             [
@@ -109,7 +109,7 @@ protected function setUp(): void
                 $this->createMock(Session::class)
             ]
         ];
-        $objectManager->prepareObjectManager($objects);
+        $this->objectManager->prepareObjectManager($objects);
 
         $this->resultRedirectFactoryMock = $this->createPartialMock(
             RedirectFactory::class,
@@ -151,7 +151,7 @@ protected function setUp(): void
             ['addSuccessMessage', 'getMessages']
         );
 
-        $this->save = $objectManager->getObject(
+        $this->save = $this->objectManager->getObject(
             Save::class,
             [
                 'request' => $this->requestMock,

app/code/Magento/Cms/Test/Unit/Block/Widget/Page/LinkTest.php

@@ -45,7 +45,7 @@ class LinkTest extends TestCase
 
     protected function setUp(): void
     {
-        $objectManager = new ObjectManager($this);
+        $this->objectManager = new ObjectManager($this);
         $objects = [
             [
                 SecureHtmlRenderer::class,
@@ -56,12 +56,12 @@ protected function setUp(): void
                 $this->createMock(Random::class)
             ]
         ];
-        $objectManager->prepareObjectManager($objects);
+        $this->objectManager->prepareObjectManager($objects);
 
         $this->mockCmsPage = $this->createMock(Page::class);
         $this->mockResourcePage = $this->createMock(\Magento\Cms\Model\ResourceModel\Page::class);
 
-        $this->linkElement = $objectManager->getObject(
+        $this->linkElement = $this->objectManager->getObject(
             Link::class,
             [
                 'cmsPage' => $this->mockCmsPage,