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Covering the AddPaymentWeeeItem and SetWeeeRendererInFormObserver by Unit Tests
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‎app/code/Magento/Weee/Test/Unit/Observer/AddPaymentWeeeItemTest.php

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<?php
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/**
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* Copyright © Magento, Inc. All rights reserved.
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* See COPYING.txt for license details.
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*/
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declare(strict_types=1);
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namespace Magento\Weee\Test\Unit\Observer;
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use Magento\Framework\Event;
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use Magento\Framework\Event\Observer;
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use Magento\Payment\Model\Cart;
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use Magento\Payment\Model\Cart\SalesModel\SalesModelInterface;
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use Magento\Quote\Model\Quote\Item;
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use Magento\Store\Api\Data\StoreInterface;
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use Magento\Store\Model\Store;
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use Magento\Store\Model\StoreManagerInterface;
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use Magento\Weee\Helper\Data;
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use Magento\Weee\Observer\AddPaymentWeeeItem;
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use PHPUnit\Framework\TestCase;
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use PHPUnit_Framework_MockObject_MockObject as MockObject;
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/**
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* Class AddPaymentWeeeItemTest
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*/
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class AddPaymentWeeeItemTest extends TestCase
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{
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/**
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* Testable object
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*
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* @var AddPaymentWeeeItem
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*/
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private $observer;
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/**
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* @var Data|MockObject
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*/
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private $weeeHelperMock;
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/**
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* @var StoreManagerInterface|MockObject
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*/
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private $storeManagerMock;
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/**
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* Set Up
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*/
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protected function setUp()
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{
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$this->weeeHelperMock = $this->createMock(Data::class);
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$this->storeManagerMock = $this->createMock(StoreManagerInterface::class);
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$this->observer = new AddPaymentWeeeItem(
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$this->weeeHelperMock,
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$this->storeManagerMock
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);
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}
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/**
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* Test execute
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*
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* @dataProvider dataProvider
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* @param bool $isEnabled
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* @param bool $includeInSubtotal
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* @return void
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*/
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public function testExecute(bool $isEnabled, bool $includeInSubtotal)
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{
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/** @var Observer|MockObject $observerMock */
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$observerMock = $this->createMock(Observer::class);
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$cartModelMock = $this->createMock(Cart::class);
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$salesModelMock = $this->createMock(SalesModelInterface::class);
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$itemMock = $this->createPartialMock(Item::class, ['getOriginalItem']);
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$originalItemMock = $this->createPartialMock(Item::class, ['getParentItem']);
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$parentItemMock = $this->createMock(Item::class);
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$eventMock = $this->getMockBuilder(Event::class)
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->disableOriginalConstructor()
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->setMethods(['getCart'])
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->getMock();
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$asCustomItem = $this->prepareShouldBeAddedAsCustomItem($isEnabled, $includeInSubtotal);
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$toBeCalled = 1;
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if (!$asCustomItem) {
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$toBeCalled = 0;
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}
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$eventMock->expects($this->atLeast($toBeCalled))
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->method('getCart')
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->willReturn($cartModelMock);
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$observerMock->expects($this->atLeast($toBeCalled))
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->method('getEvent')
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->willReturn($eventMock);
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$itemMock->expects($this->atLeast($toBeCalled))
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->method('getOriginalItem')
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->willReturn($originalItemMock);
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$originalItemMock->expects($this->atLeast($toBeCalled))
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->method('getParentItem')
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->willReturn($parentItemMock);
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$salesModelMock->expects($this->atLeast($toBeCalled))
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->method('getAllItems')
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->willReturn([$itemMock]);
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$cartModelMock->expects($this->atLeast($toBeCalled))
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->method('getSalesModel')
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->willReturn($salesModelMock);
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$this->observer->execute($observerMock);
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}
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/**
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* @return array
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*/
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public function dataProvider(): array
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{
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return [
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[true, false],
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[true, true],
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[false, true],
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[false, false],
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];
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}
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/**
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* Prepare if FPT should be added to payment cart as custom item or not.
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*
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* @param bool $isEnabled
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* @param bool $includeInSubtotal
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* @return bool
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*/
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private function prepareShouldBeAddedAsCustomItem(bool $isEnabled, bool $includeInSubtotal): bool
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{
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$storeMock = $this->getMockBuilder(StoreInterface::class)
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->setMethods(['getId'])
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->getMockForAbstractClass();
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$storeMock->method('getId')->willReturn(Store::DEFAULT_STORE_ID);
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$this->storeManagerMock->method('getStore')->willReturn($storeMock);
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$this->weeeHelperMock->method('isEnabled')->with(Store::DEFAULT_STORE_ID)
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->willReturn($isEnabled);
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if ($isEnabled) {
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$this->weeeHelperMock->method('includeInSubtotal')->with(Store::DEFAULT_STORE_ID)
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->willReturn($includeInSubtotal);
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}
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return $isEnabled && !$includeInSubtotal;
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}
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}

‎app/code/Magento/Weee/Test/Unit/Observer/SetWeeeRendererInFormObserverTest.php

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<?php
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/**
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* Copyright © Magento, Inc. All rights reserved.
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* See COPYING.txt for license details.
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*/
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declare(strict_types=1);
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namespace Magento\Weee\Test\Unit\Observer;
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use Magento\Framework\Data\Form;
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use Magento\Framework\Event;
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use Magento\Framework\Event\Observer;
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use Magento\Framework\View\LayoutInterface;
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use Magento\Weee\Model\Tax;
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use Magento\Weee\Observer\SetWeeeRendererInFormObserver;
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use PHPUnit\Framework\TestCase;
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use PHPUnit_Framework_MockObject_MockObject as MockObject;
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/**
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* Class AddPaymentWeeeItemTest
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*/
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class SetWeeeRendererInFormObserverTest extends TestCase
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{
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/**
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* Testable object
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*
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* @var SetWeeeRendererInFormObserver
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*/
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private $observer;
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/**
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* @var LayoutInterface|MockObject
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*/
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private $layoutMock;
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/**
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* @var Tax|MockObject
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*/
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private $taxModelMock;
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/**
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* Set Up
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*/
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protected function setUp()
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{
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$this->layoutMock = $this->createMock(LayoutInterface::class);
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$this->taxModelMock = $this->createMock(Tax::class);
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$this->observer = new SetWeeeRendererInFormObserver(
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$this->layoutMock,
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$this->taxModelMock
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);
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}
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/**
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* Test assigning a custom renderer for product create/edit form weee attribute element
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*
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* @return void
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*/
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public function testExecute()
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{
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$attributes = new \ArrayIterator(['element_code_1', 'element_code_2']);
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/** @var Event|MockObject $eventMock */
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$eventMock = $this->getMockBuilder(Event::class)->disableOriginalConstructor()
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->setMethods(['getForm'])
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->getMock();
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/** @var Observer|MockObject $observerMock */
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$observerMock = $this->createMock(Observer::class);
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/** @var Form|MockObject $formMock */
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$formMock = $this->createMock(Form::class);
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$eventMock->method('getForm')->willReturn($formMock);
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$observerMock->method('getEvent')->willReturn($eventMock);
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$this->taxModelMock->method('getWeeeAttributeCodes')->willReturn($attributes);
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$formMock->expects($this->exactly($attributes->count()))->method('getElement')->willReturnSelf();
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$this->observer->execute($observerMock);
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}
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}

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