WebserviceXConversionRateDownloaderTest.java

/*
 * Copyright (c) 2013 Denis Solonenko.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Public License v2.0
 * which accompanies this distribution, and is available at
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 */

package ru.orangesoftware.financisto2.test.rates;

import java.util.List;

import ru.orangesoftware.financisto2.rates.ExchangeRate;
import ru.orangesoftware.financisto2.rates.ExchangeRateProvider;
import ru.orangesoftware.financisto2.rates.WebserviceXConversionRateDownloader;

/**
 * Created with IntelliJ IDEA.
 * User: dsolonenko
 * Date: 2/18/13
 * Time: 10:04 PM
 */
public class WebserviceXConversionRateDownloaderTest extends AbstractRatesDownloaderTest {

    long dateTime = System.currentTimeMillis();
    WebserviceXConversionRateDownloader webserviceX = new WebserviceXConversionRateDownloader(client, dateTime);

    @Override
    ExchangeRateProvider service() {
        return webserviceX;
    }

    public void test_should_download_single_rate_cur_to_cur() {
        //given
        givenResponseFromWebService("USD","SGD",1.2387);
        //when
        ExchangeRate exchangeRate = downloadRate("USD", "SGD");
        //then
        assertEquals(1.2387, exchangeRate.rate);
    }

    public void test_should_download_multiple_rates() {
        //given
        givenResponseFromWebService("USD", "SGD", 1.2);
        givenResponseFromWebService("USD", "RUB", 30);
        givenResponseFromWebService("SGD", "RUB", 25);
        //when
        List<ExchangeRate> rates = webserviceX.getRates(currencies("USD", "SGD", "RUB"));
        //then
        assertEquals(3, rates.size());
        assertRate(rates.get(0), "USD", "SGD", 1.2, dateTime);
        assertRate(rates.get(1), "USD", "RUB", 30, dateTime);
        assertRate(rates.get(2), "SGD", "RUB", 25, dateTime);
    }

    public void test_should_skip_unknown_currency() {
        //given
        givenResponseFromWebService(anyUrl(), "Exception: Unable to convert ToCurrency to Currency\r\nStacktrace...");
        //when
        ExchangeRate rate = downloadRate("USD", "AAA");
        //then
        assertFalse(rate.isOk());
        assertRate(rate, "USD", "AAA");
    }

    public void test_should_handle_error_from_webservice_properly() {
        //given
        givenResponseFromWebService(anyUrl(), "System.IO.IOException: There is not enough space on the disk.\r\nStacktrace...");
        //when
        ExchangeRate downloadedRate = downloadRate("USD", "SGD");
        //then
        assertFalse(downloadedRate.isOk());
        assertEquals("Something wrong with the exchange rates provider. Response from the service - System.IO.IOException: There is not enough space on the disk.",
                downloadedRate.getErrorMessage());
    }

    public void test_should_handle_runtime_error_properly() {
        //given
        givenExceptionWhileRequestingWebService();
        //when
        ExchangeRate downloadedRate = downloadRate("USD", "SGD");
        //then
        assertFalse(downloadedRate.isOk());
        assertRate(downloadedRate, "USD", "SGD");
        assertEquals("Unable to get exchange rates: Timeout", downloadedRate.getErrorMessage());
    }

    private void givenResponseFromWebService(String c1, String c2, double r) {
        givenResponseFromWebService("http://www.webservicex.net/CurrencyConvertor.asmx/ConversionRate?FromCurrency="+c1+"&ToCurrency="+c2,
                "<double xmlns=\"http://www.webserviceX.NET/\">"+r+"</double>");
    }

}