CartTest.php

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<?php
namespace Magento\Paypal\Test\Unit\Model;

use Magento\Paypal\Model\Cart;

class CartTest extends \PHPUnit\Framework\TestCase
{
    protected $_model;

    protected $_validItem;

    protected $_salesModel;

    public function __construct($name = null, array $data = [], $dataName = '')
    {
        parent::__construct($name, $data, $dataName);
        $this->_validItem = new \Magento\Framework\DataObject(
            [
                'parent_item' => null,
                'price' => 2.0,
                'qty' => 3,
                'name' => 'valid item',
                'original_item' => new \Magento\Framework\DataObject(['base_row_total' => 6.0]),
            ]
        );
    }

    protected function setUp()
    {
        $this->_salesModel = $this->getMockForAbstractClass(
            \Magento\Payment\Model\Cart\SalesModel\SalesModelInterface::class
        );
        $factoryMock = $this->createPartialMock(\Magento\Payment\Model\Cart\SalesModel\Factory::class, ['create']);
        $factoryMock->expects(
            $this->once()
        )->method(
            'create'
        )->with(
            'sales model'
        )->will(
            $this->returnValue($this->_salesModel)
        );
        $eventManagerMock = $this->getMockForAbstractClass(\Magento\Framework\Event\ManagerInterface::class);

        $this->_model = new \Magento\Paypal\Model\Cart($factoryMock, $eventManagerMock, 'sales model');
    }

    public function testInvalidGetAllItems($items)
    {
        $taxContainer = new \Magento\Framework\DataObject(
            ['base_discount_tax_compensation_amount' => 0.2, 'base_shipping_discount_tax_compensation_amount' => 0.1]
        );
        $this->_salesModel->expects($this->once())->method('getTaxContainer')->will($this->returnValue($taxContainer));
        $this->_salesModel->expects($this->once())->method('getAllItems')->will($this->returnValue($items));
        $this->_salesModel->expects($this->once())->method('getBaseSubtotal')->will($this->returnValue(2.1));
        $this->_salesModel->expects($this->once())->method('getBaseTaxAmount')->will($this->returnValue(0.1));
        $this->_salesModel->expects($this->once())->method('getBaseShippingAmount')->will($this->returnValue(1.1));
        $this->_salesModel->expects($this->once())->method('getBaseDiscountAmount')->will($this->returnValue(0.3));
        $this->assertEmpty($this->_model->getAllItems());
        $this->assertEquals(2.1, $this->_model->getSubtotal());
        $this->assertEquals(0.1 + 0.2 + 0.1, $this->_model->getTax());
        $this->assertEquals(1.1, $this->_model->getShipping());
        $this->assertEquals(0.3, $this->_model->getDiscount());
    }

    public function invalidGetAllItemsDataProvider()
    {
        return [
            [[]],
            [
                [
                    new \Magento\Framework\DataObject(
                        [
                            'parent_item' => new \Magento\Framework\DataObject(),
                            'price' => 2.0,
                            'qty' => 3,
                            'name' => 'item 1',
                        ]
                    ),
                ]
            ],
            [
                [
                    $this->_validItem,
                    new \Magento\Framework\DataObject(
                        [
                            'price' => 2.0,
                            'qty' => 3,
                            'name' => 'item 2',
                            'original_item' => new \Magento\Framework\DataObject(['base_row_total' => 6.01]),
                        ]
                    ),
                ]
            ],
            [
                [
                    $this->_validItem,
                    new \Magento\Framework\DataObject(
                        [
                            'price' => sqrt(2),
                            'qty' => sqrt(2),
                            'name' => 'item 3',
                            'original_item' => new \Magento\Framework\DataObject(['base_row_total' => 2]),
                        ]
                    ),
                ]
            ]
        ];
    }

    public function testInvalidTotalsGetAllItems($values, $transferDiscount)
    {
        $expectedSubtotal = $this->_prepareInvalidModelData($values, $transferDiscount);
        $this->assertEmpty($this->_model->getAllItems());
        $this->assertEquals($expectedSubtotal, $this->_model->getSubtotal());
        $this->assertEquals(
            $values['base_tax_amount'] +
            $values['base_discount_tax_compensation_amount'] +
            $values['base_shipping_discount_tax_compensation_amount'],
            $this->_model->getTax()
        );
        $this->assertEquals($values['base_shipping_amount'], $this->_model->getShipping());
        $this->assertEquals($transferDiscount ? 0.0 : $values['base_discount_amount'], $this->_model->getDiscount());
    }

    public function invalidTotalsGetAllItemsDataProvider()
    {
        return [
            [
                [
                    'base_discount_tax_compensation_amount' => 0,
                    'base_shipping_discount_tax_compensation_amount' => 0,
                    'base_subtotal' => 0,
                    'base_tax_amount' => 0,
                    'base_shipping_amount' => 0,
                    'base_discount_amount' => 6.1,
                    'base_grand_total' => 0,
                ],
                false,
            ],
            [
                [
                    'base_discount_tax_compensation_amount' => 1,
                    'base_shipping_discount_tax_compensation_amount' => 2,
                    'base_subtotal' => 3,
                    'base_tax_amount' => 4,
                    'base_shipping_amount' => 5,
                    'base_discount_amount' => 100,
                    'base_grand_total' => 5.5,
                ],
                true
            ]
        ];
    }

    public function testGetAllItems()
    {
        $totals = $this->_prepareValidModelData();
        $this->assertEquals(
            [
                new \Magento\Framework\DataObject(
                    [
                        'name' => $this->_validItem->getName(),
                        'qty' => $this->_validItem->getQty(),
                        'amount' => $this->_validItem->getPrice(),
                    ]
                ),
            ],
            $this->_model->getAllItems()
        );
        $this->assertEquals($totals['subtotal'], $this->_model->getSubtotal());
        $this->assertEquals($totals['tax'], $this->_model->getTax());
        $this->assertEquals($totals['shipping'], $this->_model->getShipping());
        $this->assertEquals($totals['discount'], $this->_model->getDiscount());
    }

    public function testInvalidGetAmounts($values, $transferDiscount, $transferShipping)
    {
        $expectedSubtotal = $this->_prepareInvalidModelData($values, $transferDiscount);
        if ($transferShipping) {
            $this->_model->setTransferShippingAsItem();
        }
        $result = $this->_model->getAmounts();
        $expectedSubtotal += $this->_model->getTax();
        $expectedSubtotal += $values['base_shipping_amount'];
        if (!$transferDiscount) {
            $expectedSubtotal -= $this->_model->getDiscount();
        }
        $this->assertEquals([Cart::AMOUNT_SUBTOTAL => $expectedSubtotal], $result);
    }

    public function invalidGetAmountsDataProvider()
    {
        $data = [];
        $invalidTotalsData = $this->invalidTotalsGetAllItemsDataProvider();
        foreach ($invalidTotalsData as $dataItem) {
            $data[] = [$dataItem[0], $dataItem[1], true];
            $data[] = [$dataItem[0], $dataItem[1], false];
        }
        return $data;
    }

    protected function _prepareInvalidModelData($values, $transferDiscount)
    {
        $taxContainer = new \Magento\Framework\DataObject(
            [
                'base_discount_tax_compensation_amount' =>
                    $values['base_discount_tax_compensation_amount'],
                'base_shipping_discount_tax_compensation_amount' =>
                    $values['base_shipping_discount_tax_compensation_amount'],
            ]
        );
        $expectedSubtotal = $values['base_subtotal'];
        if ($transferDiscount) {
            $this->_model->setTransferDiscountAsItem();
            $expectedSubtotal -= $values['base_discount_amount'];
        }
        $this->_salesModel->expects($this->once())->method('getTaxContainer')->will($this->returnValue($taxContainer));
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getAllItems'
        )->will(
            $this->returnValue([$this->_validItem])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseSubtotal'
        )->will(
            $this->returnValue($values['base_subtotal'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseTaxAmount'
        )->will(
            $this->returnValue($values['base_tax_amount'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseShippingAmount'
        )->will(
            $this->returnValue($values['base_shipping_amount'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseDiscountAmount'
        )->will(
            $this->returnValue($values['base_discount_amount'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getDataUsingMethod'
        )->with(
            'base_grand_total'
        )->will(
            $this->returnValue($values['base_grand_total'])
        );
        return $expectedSubtotal;
    }

    public function testGetAmounts()
    {
        $totals = $this->_prepareValidModelData();
        $this->assertEquals($totals, $this->_model->getAmounts());
    }

    protected function _prepareValidModelData()
    {
        $totals = ['discount' => 0.1, 'shipping' => 0.2, 'subtotal' => 0.3, 'tax' => 0.4];
        $taxContainer = new \Magento\Framework\DataObject(
            ['base_discount_tax_compensation_amount' => 0, 'base_shipping_discount_tax_compensation_amnt' => 0]
        );
        $this->_salesModel->expects($this->once())->method('getTaxContainer')->will($this->returnValue($taxContainer));
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getAllItems'
        )->will(
            $this->returnValue([$this->_validItem])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseSubtotal'
        )->will(
            $this->returnValue($totals['subtotal'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseTaxAmount'
        )->will(
            $this->returnValue($totals['tax'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseShippingAmount'
        )->will(
            $this->returnValue($totals['shipping'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getBaseDiscountAmount'
        )->will(
            $this->returnValue($totals['discount'])
        );
        $this->_salesModel->expects(
            $this->once()
        )->method(
            'getDataUsingMethod'
        )->with(
            'base_grand_total'
        )->will(
            $this->returnValue(6.0 + $totals['tax'] + $totals['shipping'] - $totals['discount'])
        );
        return $totals;
    }

    public function testHasNegativeItemAmount()
    {
        $this->_model->addCustomItem('item1', 1, 2.1);
        $this->assertFalse($this->_model->hasNegativeItemAmount());
        $this->_model->addCustomItem('item1', 1, -1.3);
        $this->assertTrue($this->_model->hasNegativeItemAmount());
    }
}