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JSR 354 provides an API for representing, transporting, and performing comprehensive calculations with Money and Currency. This module implements JSR 354. This module provides the test code that is compatible with both the Java 7 and the Java 8 based API. The targeted API must be provided as well as the implementation under test to execute this TCK.

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/*
 * Copyright (c) 2012, 2013, Werner Keil, Credit Suisse (Anatole Tresch). Licensed under the Apache
 * License, Version 2.0 (the "License"); you may not use this file except in compliance with the
 * License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License. Contributors: Anatole Tresch - initial version.
 */
package org.javamoney.tck.tests.conversion;

import org.javamoney.tck.tests.internal.TestCurrencyUnit;
import org.jboss.test.audit.annotations.SpecAssertion;
import org.jboss.test.audit.annotations.SpecVersion;
import org.testng.AssertJUnit;
import org.testng.annotations.Test;

import javax.money.CurrencyUnit;
import javax.money.MonetaryAmount;
import javax.money.Monetary;
import javax.money.convert.CurrencyConversion;
import javax.money.convert.CurrencyConversionException;
import javax.money.convert.ExchangeRate;
import javax.money.convert.MonetaryConversions;

/**
 * Test for converting amounts.
 * Created by Anatole on 10.03.14.
 */
@SpecVersion(spec = "JSR 354", version = "1.0.0")
public class ConvertingAmountsTest {

    // ******************************* A. Test Basic MonetaryConversions Accessors ******************************

    /**
     * Test successful conversion for possible currency pairs.
     * Hint: you may only check for rate factory, when using a hardcoded ExchangeRateProvider, such a provider
     * must be also implemented and registered as an SPI.
     */
    @Test(description = "4.3.2 Test successful conversion for CHF -> FOO, using TestRateProvider.")
    @SpecAssertion(id = "432-A1", section = "4.3.2")
    public void testConversion() {
        CurrencyUnit cu = new TestCurrencyUnit("FOO");
        CurrencyConversion conv = MonetaryConversions.getConversion(cu, "TestRateProvider");
        MonetaryAmount m = Monetary.getDefaultAmountFactory().setNumber(10).setCurrency("CHF").create();
        MonetaryAmount m2 = m.with(conv);
        AssertJUnit.assertEquals(m2.getCurrency().getCurrencyCode(), "FOO");
        AssertJUnit.assertEquals(20L, m2.getNumber().longValueExact());
        m2 = m.with(conv);
        AssertJUnit.assertEquals(m2.getCurrency().getCurrencyCode(), "FOO");
        AssertJUnit.assertEquals(20L, m2.getNumber().longValueExact());
    }

    /**
     * Compare conversions done with exchange rates provided for same currency pair.
     */
    @Test(description = "4.3.2 Test correct ExchangeRate is returned for CHF -> FOO, using TestRateProvider.")
    @SpecAssertion(id = "432-A2", section = "4.3.2")
    public void testConversionComparedWithRate() {
        final CurrencyUnit FOO = new TestCurrencyUnit("FOO");
        ExchangeRate rate = MonetaryConversions.getExchangeRateProvider("TestRateProvider")
                .getExchangeRate(Monetary.getCurrency("CHF"), FOO);
        AssertJUnit.assertEquals(rate.getBaseCurrency(), Monetary.getCurrency("CHF"));
        AssertJUnit.assertEquals(rate.getCurrency().getCurrencyCode(), FOO.getCurrencyCode());
        AssertJUnit.assertEquals(rate.getFactor().intValueExact(), 2);
        AssertJUnit.assertEquals("TestRateProvider", rate.getContext().getProviderName());
    }

    /**
     * Bad case: try converting from/to an inconvertible (custom) currency, ensure CurrencyConversionException is
     * thrown.
     *
     * @see org.javamoney.tck.tests.internal.TestCurrencyUnit } for creating a custom currency,
     * with some fancy non-ISO currency code.
     */
    @Test(description = "4.3.2 Bad case: Try CurrencyConversion to an inconvertible (custom) " +
            "currency (FOOANY), ensure CurrencyConversionException is thrown.")
    @SpecAssertion(id = "432-A3", section = "4.3.2")
    public void testUnsupportedConversion() {
        MonetaryAmount m = Monetary.getDefaultAmountFactory().setNumber(10).setCurrency("CHF").create();
        CurrencyUnit cu = new TestCurrencyUnit("FOOANY");
        try {
            CurrencyConversion conv = MonetaryConversions.getConversion(cu);
            m.with(conv);
        } catch (CurrencyConversionException e) {
            // expected
        }
    }

    /**
     * Bad case: try converting from/to a null currency, ensure NullPointerException is thrown.
     */
    @Test(expectedExceptions = NullPointerException.class,
            description = "4.3.2 Bad case: Access CurrencyConversion " +
                    "with a CurrencyUnit==null, ensure NullPointerException is thrown.")
    @SpecAssertion(id = "432-A4", section = "4.3.2")
    public void testNullConversion1() {
        MonetaryConversions.getConversion((CurrencyUnit) null);
    }

    /**
     * Bad case: try converting from/to a null currency, ensure NullPointerException is thrown.
     */
    @Test(expectedExceptions = NullPointerException.class,
            description = "4.3.2 Bad case: Access CurrencyConversion with a currency code==null, ensure " +
                    "NullPointerException is thrown.")
    @SpecAssertion(id = "432-A4", section = "4.3.2")
    public void testNullConversion2() {
        MonetaryConversions.getConversion((String) null);
    }

}