#27500 - Added return type void to setUp method.

Author: cristiano-pacheco

app/code/Magento/OfflinePayments/Test/Unit/Block/Form/AbstractInstructionTest.php

@@ -19,7 +19,7 @@ class AbstractInstructionTest extends TestCase
      */
     protected $model;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $context = $this->createMock(Context::class);
         $this->model = $this->getMockForAbstractClass(

app/code/Magento/OfflinePayments/Test/Unit/Block/Info/CheckmoTest.php

@@ -31,7 +31,7 @@ class CheckmoTest extends TestCase
     /**
      * @inheritdoc
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         $context = $this->getMockBuilder(Context::class)
             ->disableOriginalConstructor()

app/code/Magento/OfflinePayments/Test/Unit/Model/BanktransferTest.php

@@ -28,7 +28,7 @@ class BanktransferTest extends TestCase
      */
     private $scopeConfigMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $objectManagerHelper = new ObjectManager($this);
         $eventManager = $this->createMock(ManagerInterface::class);

app/code/Magento/OfflinePayments/Test/Unit/Model/CashondeliveryTest.php

@@ -28,7 +28,7 @@ class CashondeliveryTest extends TestCase
      */
     private $scopeConfigMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $helper = new ObjectManager($this);
 

app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoConfigProviderTest.php

@@ -31,7 +31,7 @@ class CheckmoConfigProviderTest extends TestCase
      */
     private $escaperMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->methodMock = $this->createMock(Checkmo::class);
 

app/code/Magento/OfflinePayments/Test/Unit/Model/CheckmoTest.php

@@ -27,7 +27,7 @@ class CheckmoTest extends TestCase
      */
     private $scopeConfigMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $objectManagerHelper = new ObjectManager($this);
         $eventManager = $this->createMock(ManagerInterface::class);

app/code/Magento/OfflinePayments/Test/Unit/Model/InstructionsConfigProviderTest.php

@@ -38,7 +38,7 @@ class InstructionsConfigProviderTest extends TestCase
      */
     private $escaperMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $this->methodOneMock = $this->createPartialMock(
             AbstractMethod::class,

app/code/Magento/OfflinePayments/Test/Unit/Model/PurchaseorderTest.php

@@ -33,7 +33,7 @@ class PurchaseorderTest extends TestCase
      */
     private $scopeConfigMock;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         $objectManagerHelper = new ObjectManager($this);
         $eventManager = $this->createMock(EventManagerInterface::class);

app/code/Magento/OfflinePayments/Test/Unit/Observer/BeforeOrderPaymentSaveObserverTest.php

@@ -54,7 +54,7 @@ class BeforeOrderPaymentSaveObserverTest extends TestCase
     /**
      * @inheritdoc
      */
-    protected function setUp()
+    protected function setUp(): void
     {
         $objectManagerHelper = new ObjectManager($this);
         $this->paymentMock = $this->getMockBuilder(Payment::class)