CanInvoiceTest.php

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<?php
namespace Magento\Sales\Test\Unit\Model\Order\Validation;

use Magento\Sales\Model\Order;

class CanInvoiceTest extends \PHPUnit\Framework\TestCase
{
    private $model;

    private $objectManager;

    private $orderMock;

    private $orderItemMock;

    protected function setUp()
    {
        $this->objectManager = new \Magento\Framework\TestFramework\Unit\Helper\ObjectManager($this);

        $this->orderMock = $this->getMockBuilder(\Magento\Sales\Api\Data\OrderInterface::class)
            ->disableOriginalConstructor()
            ->setMethods(['getStatus', 'getItems'])
            ->getMockForAbstractClass();

        $this->orderItemMock = $this->getMockBuilder(\Magento\Sales\Api\Data\OrderItemInterface::class)
            ->disableOriginalConstructor()
            ->setMethods(['getQtyToInvoice', 'getLockedDoInvoice'])
            ->getMockForAbstractClass();

        $this->model = new \Magento\Sales\Model\Order\Validation\CanInvoice();
    }

    public function testCanInvoiceWrongState($state)
    {
        $this->orderMock->expects($this->any())
            ->method('getState')
            ->willReturn($state);
        $this->orderMock->expects($this->never())
            ->method('getItems');
        $this->orderMock->expects($this->once())
            ->method('getStatus')
            ->willReturn('status');
        $this->assertEquals(
            [__('An invoice cannot be created when an order has a status of %1', 'status')],
            $this->model->validate($this->orderMock)
        );
    }

    public function canInvoiceWrongStateDataProvider()
    {
        return [
            [Order::STATE_PAYMENT_REVIEW],
            [Order::STATE_HOLDED],
            [Order::STATE_CANCELED],
            [Order::STATE_COMPLETE],
            [Order::STATE_CLOSED],
        ];
    }

    public function testCanInvoiceNoItems()
    {
        $this->orderMock->expects($this->any())
            ->method('getState')
            ->willReturn(Order::STATE_PROCESSING);

        $this->orderMock->expects($this->once())
            ->method('getItems')
            ->willReturn([]);

        $this->assertNotEmpty(
            $this->model->validate($this->orderMock)
        );
    }

    public function testCanInvoice($qtyToInvoice, $itemLockedDoInvoice, $expectedResult)
    {
        $this->orderMock->expects($this->any())
            ->method('getState')
            ->willReturn(Order::STATE_PROCESSING);

        $items = [$this->orderItemMock];
        $this->orderMock->expects($this->once())
            ->method('getItems')
            ->willReturn($items);
        $this->orderItemMock->expects($this->any())
            ->method('getQtyToInvoice')
            ->willReturn($qtyToInvoice);
        $this->orderItemMock->expects($this->any())
            ->method('getLockedDoInvoice')
            ->willReturn($itemLockedDoInvoice);

        $this->assertEquals(
            $expectedResult,
            $this->model->validate($this->orderMock)
        );
    }

    public function canInvoiceDataProvider()
    {
        return [
            [0, null, [__('The order does not allow an invoice to be created.')]],
            [-1, null, [__('The order does not allow an invoice to be created.')]],
            [1, true, [__('The order does not allow an invoice to be created.')]],
            [0.5, false, []],
        ];
    }
}