Manual money tests (#2338)
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package com.baeldung.money;
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import org.javamoney.moneta.FastMoney;
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import org.javamoney.moneta.Money;
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import org.javamoney.moneta.format.CurrencyStyle;
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import org.junit.Ignore;
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import org.junit.Test;
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import javax.money.CurrencyUnit;
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import javax.money.Monetary;
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import javax.money.MonetaryAmount;
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import javax.money.UnknownCurrencyException;
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import javax.money.convert.CurrencyConversion;
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import javax.money.convert.MonetaryConversions;
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import javax.money.format.AmountFormatQueryBuilder;
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import javax.money.format.MonetaryAmountFormat;
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import javax.money.format.MonetaryFormats;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Locale;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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public class JavaMoneyUnitTest {
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@Test
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public void givenCurrencyCode_whenString_thanExist() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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assertNotNull(usd);
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assertEquals(usd.getCurrencyCode(), "USD");
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assertEquals(usd.getNumericCode(), 840);
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assertEquals(usd.getDefaultFractionDigits(), 2);
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}
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@Test(expected = UnknownCurrencyException.class)
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public void givenCurrencyCode_whenNoExist_thanThrowsError() {
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Monetary.getCurrency("AAA");
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}
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@Test
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public void givenAmounts_whenStringified_thanEquals() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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MonetaryAmount fstAmtUSD = Monetary
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.getDefaultAmountFactory()
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.setCurrency(usd)
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.setNumber(200)
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.create();
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Money moneyof = Money.of(12, usd);
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FastMoney fastmoneyof = FastMoney.of(2, usd);
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assertEquals("USD", usd.toString());
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assertEquals("USD 200", fstAmtUSD.toString());
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assertEquals("USD 12", moneyof.toString());
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assertEquals("USD 2.00000", fastmoneyof.toString());
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}
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@Test
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public void givenCurrencies_whenCompared_thanNotequal() {
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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Money oneEuro = Money.of(1, "EUR");
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assertFalse(oneEuro.equals(FastMoney.of(1, "EUR")));
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assertTrue(oneDolar.equals(Money.of(1, "USD")));
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}
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@Test(expected = ArithmeticException.class)
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public void givenAmount_whenDivided_thanThrowsException() {
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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oneDolar.divide(3);
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fail(); // if no exception
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}
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@Test
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public void givenAmounts_whenSummed_thanCorrect() {
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List<MonetaryAmount> monetaryAmounts = Arrays.asList(Money.of(100, "CHF"), Money.of(10.20, "CHF"), Money.of(1.15, "CHF"));
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Money sumAmtCHF = (Money) monetaryAmounts
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.stream()
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.reduce(Money.of(0, "CHF"), MonetaryAmount::add);
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assertEquals("CHF 111.35", sumAmtCHF.toString());
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}
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@Test
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public void givenArithmetic_whenStringified_thanEqualsAmount() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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Money moneyof = Money.of(12, usd);
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MonetaryAmount fstAmtUSD = Monetary
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.getDefaultAmountFactory()
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.setCurrency(usd)
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.setNumber(200.50)
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.create();
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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Money subtractedAmount = Money
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.of(1, "USD")
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.subtract(fstAmtUSD);
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MonetaryAmount multiplyAmount = oneDolar.multiply(0.25);
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MonetaryAmount divideAmount = oneDolar.divide(0.25);
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assertEquals("USD", usd.toString());
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assertEquals("USD 1", oneDolar.toString());
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assertEquals("USD 200.5", fstAmtUSD.toString());
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assertEquals("USD 12", moneyof.toString());
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assertEquals("USD -199.5", subtractedAmount.toString());
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assertEquals("USD 0.25", multiplyAmount.toString());
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assertEquals("USD 4", divideAmount.toString());
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}
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@Test
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public void givenAmount_whenRounded_thanEquals() {
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MonetaryAmount fstAmtEUR = Monetary
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.getDefaultAmountFactory()
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.setCurrency("EUR")
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.setNumber(1.30473908)
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.create();
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MonetaryAmount roundEUR = fstAmtEUR.with(Monetary.getDefaultRounding());
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assertEquals("EUR 1.30473908", fstAmtEUR.toString());
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assertEquals("EUR 1.3", roundEUR.toString());
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}
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@Test
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@Ignore("Currency providers are not always available")
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public void givenAmount_whenConversion_thenNotNull() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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CurrencyConversion conversionEUR = MonetaryConversions.getConversion("EUR");
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MonetaryAmount convertedAmountUSDtoEUR = oneDollar.with(conversionEUR);
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assertEquals("USD 1", oneDollar.toString());
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assertNotNull(convertedAmountUSDtoEUR);
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}
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@Test
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public void givenLocale_whenFormatted_thanEquals() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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MonetaryAmountFormat formatUSD = MonetaryFormats.getAmountFormat(Locale.US);
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String usFormatted = formatUSD.format(oneDollar);
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assertEquals("USD 1", oneDollar.toString());
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assertNotNull(formatUSD);
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assertEquals("USD1.00", usFormatted);
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}
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@Test
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public void givenAmount_whenCustomFormat_thanEquals() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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MonetaryAmountFormat customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder
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.of(Locale.US)
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.set(CurrencyStyle.NAME)
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.set("pattern", "00000.00 ¤")
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.build());
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String customFormatted = customFormat.format(oneDollar);
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assertNotNull(customFormat);
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assertEquals("USD 1", oneDollar.toString());
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assertEquals("00001.00 US Dollar", customFormatted);
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}
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}
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package com.baeldung.money;
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import org.javamoney.moneta.FastMoney;
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import org.javamoney.moneta.Money;
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import org.javamoney.moneta.format.CurrencyStyle;
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import org.junit.Ignore;
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import org.junit.Test;
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import javax.money.CurrencyUnit;
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import javax.money.Monetary;
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import javax.money.MonetaryAmount;
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import javax.money.UnknownCurrencyException;
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import javax.money.convert.CurrencyConversion;
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import javax.money.convert.MonetaryConversions;
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import javax.money.format.AmountFormatQueryBuilder;
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import javax.money.format.MonetaryAmountFormat;
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import javax.money.format.MonetaryFormats;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Locale;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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public class JavaMoneyUnitManualTest {
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@Test
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public void givenCurrencyCode_whenString_thanExist() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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assertNotNull(usd);
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assertEquals(usd.getCurrencyCode(), "USD");
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assertEquals(usd.getNumericCode(), 840);
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assertEquals(usd.getDefaultFractionDigits(), 2);
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}
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@Test(expected = UnknownCurrencyException.class)
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public void givenCurrencyCode_whenNoExist_thanThrowsError() {
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Monetary.getCurrency("AAA");
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}
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@Test
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public void givenAmounts_whenStringified_thanEquals() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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MonetaryAmount fstAmtUSD = Monetary
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.getDefaultAmountFactory()
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.setCurrency(usd)
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.setNumber(200)
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.create();
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Money moneyof = Money.of(12, usd);
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FastMoney fastmoneyof = FastMoney.of(2, usd);
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assertEquals("USD", usd.toString());
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assertEquals("USD 200", fstAmtUSD.toString());
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assertEquals("USD 12", moneyof.toString());
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assertEquals("USD 2.00000", fastmoneyof.toString());
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}
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@Test
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public void givenCurrencies_whenCompared_thanNotequal() {
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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Money oneEuro = Money.of(1, "EUR");
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assertFalse(oneEuro.equals(FastMoney.of(1, "EUR")));
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assertTrue(oneDolar.equals(Money.of(1, "USD")));
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}
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@Test(expected = ArithmeticException.class)
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public void givenAmount_whenDivided_thanThrowsException() {
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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oneDolar.divide(3);
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fail(); // if no exception
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}
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@Test
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public void givenAmounts_whenSummed_thanCorrect() {
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List<MonetaryAmount> monetaryAmounts = Arrays.asList(Money.of(100, "CHF"), Money.of(10.20, "CHF"), Money.of(1.15, "CHF"));
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Money sumAmtCHF = (Money) monetaryAmounts
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.stream()
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.reduce(Money.of(0, "CHF"), MonetaryAmount::add);
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assertEquals("CHF 111.35", sumAmtCHF.toString());
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}
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@Test
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public void givenArithmetic_whenStringified_thanEqualsAmount() {
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CurrencyUnit usd = Monetary.getCurrency("USD");
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Money moneyof = Money.of(12, usd);
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MonetaryAmount fstAmtUSD = Monetary
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.getDefaultAmountFactory()
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.setCurrency(usd)
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.setNumber(200.50)
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.create();
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MonetaryAmount oneDolar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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Money subtractedAmount = Money
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.of(1, "USD")
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.subtract(fstAmtUSD);
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MonetaryAmount multiplyAmount = oneDolar.multiply(0.25);
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MonetaryAmount divideAmount = oneDolar.divide(0.25);
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assertEquals("USD", usd.toString());
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assertEquals("USD 1", oneDolar.toString());
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assertEquals("USD 200.5", fstAmtUSD.toString());
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assertEquals("USD 12", moneyof.toString());
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assertEquals("USD -199.5", subtractedAmount.toString());
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assertEquals("USD 0.25", multiplyAmount.toString());
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assertEquals("USD 4", divideAmount.toString());
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}
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@Test
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public void givenAmount_whenRounded_thanEquals() {
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MonetaryAmount fstAmtEUR = Monetary
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.getDefaultAmountFactory()
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.setCurrency("EUR")
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.setNumber(1.30473908)
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.create();
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MonetaryAmount roundEUR = fstAmtEUR.with(Monetary.getDefaultRounding());
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assertEquals("EUR 1.30473908", fstAmtEUR.toString());
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assertEquals("EUR 1.3", roundEUR.toString());
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}
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@Test
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@Ignore("Currency providers are not always available")
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public void givenAmount_whenConversion_thenNotNull() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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CurrencyConversion conversionEUR = MonetaryConversions.getConversion("EUR");
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MonetaryAmount convertedAmountUSDtoEUR = oneDollar.with(conversionEUR);
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assertEquals("USD 1", oneDollar.toString());
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assertNotNull(convertedAmountUSDtoEUR);
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}
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@Test
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public void givenLocale_whenFormatted_thanEquals() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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MonetaryAmountFormat formatUSD = MonetaryFormats.getAmountFormat(Locale.US);
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String usFormatted = formatUSD.format(oneDollar);
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assertEquals("USD 1", oneDollar.toString());
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assertNotNull(formatUSD);
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assertEquals("USD1.00", usFormatted);
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}
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@Test
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public void givenAmount_whenCustomFormat_thanEquals() {
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MonetaryAmount oneDollar = Monetary
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.getDefaultAmountFactory()
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.setCurrency("USD")
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.setNumber(1)
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.create();
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MonetaryAmountFormat customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder
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.of(Locale.US)
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.set(CurrencyStyle.NAME)
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.set("pattern", "00000.00 <EFBFBD>")
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.build());
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String customFormatted = customFormat.format(oneDollar);
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assertNotNull(customFormat);
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assertEquals("USD 1", oneDollar.toString());
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assertEquals("00001.00 US Dollar", customFormatted);
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}
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}
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