MangoPay API PHPUnit mock

MangoPayApiPhpUnitMock.php

<?php

namespace Lrqdo\Tests;

use MangoPay\ApiWallets;
use MangoPay\MangoPayApi;
use MangoPay\Money;
use MangoPay\Wallet;
use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;

class MyTest extends WebTestCase
{
    private $mangoPayApi;
    private $webClient;

    protected function setUp()
    {
        $this->mangoPayApi = $this->createMock(MangoPayApi::class);
        $this->mangoPayApi->Wallets = $this->createMock(ApiWallets::class);

        $this->webClient = static::createClient();

        $container = $this->webClient->getContainer();

        // replace the SDK by the mock
        $container->set('mangopay.api', $this->mangoPayApi);
    }

    /**
     * @test
     */
    public function it_returns_balance_of_authenticated_user()
    {
        $this->mangoPayApi->Wallets
            ->expects($this->once())
            ->willReturn($this->createWallet(1000, 'EUR'));

        $this->webClient->request(
            // custom HTTP request on the route we want to test
        );

        $response = json_decode($this->webClient->getResponse()->getContent(), true);
        $this->assertEquals(1000, $response['balance']['amount']);
    }

    private function createWallet($amount, $currency)
    {
        $wallet = new Wallet();

        $wallet->Balance = new Money();
        $wallet->Balance->Amount = $amount;
        $wallet->Balance->Currency = $currency;

        return $wallet;
    }
}