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Refactor Money and Currency API examples #1318

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Mar 7, 2017
Merged

Refactor Money and Currency API examples #1318

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88 changes: 68 additions & 20 deletions core-java/src/test/java/com/baeldung/money/JavaMoneyTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@
import javax.money.format.AmountFormatQueryBuilder;
import javax.money.format.MonetaryAmountFormat;
import javax.money.format.MonetaryFormats;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;

import static org.junit.Assert.*;
Expand All @@ -40,7 +42,11 @@ public void givenCurrencyCode_whenNoExist_thanThrowsError() {
@Test
public void givenAmounts_whenStringified_thanEquals() {
CurrencyUnit usd = Monetary.getCurrency("USD");
MonetaryAmount fstAmtUSD = Monetary.getDefaultAmountFactory().setCurrency(usd).setNumber(200).create();
MonetaryAmount fstAmtUSD = Monetary
.getDefaultAmountFactory()
.setCurrency(usd)
.setNumber(200)
.create();
Money moneyof = Money.of(12, usd);
FastMoney fastmoneyof = FastMoney.of(2, usd);

Expand All @@ -52,7 +58,11 @@ public void givenAmounts_whenStringified_thanEquals() {

@Test
public void givenCurrencies_whenCompared_thanNotequal() {
MonetaryAmount oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
MonetaryAmount oneDolar = Monetary
.getDefaultAmountFactory()
.setCurrency("USD")
.setNumber(1)
.create();
Money oneEuro = Money.of(1, "EUR");

assertFalse(oneEuro.equals(FastMoney.of(1, "EUR")));
Expand All @@ -61,20 +71,22 @@ public void givenCurrencies_whenCompared_thanNotequal() {

@Test(expected = ArithmeticException.class)
public void givenAmount_whenDivided_thanThrowsException() {
MonetaryAmount oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
MonetaryAmount oneDolar = Monetary
.getDefaultAmountFactory()
.setCurrency("USD")
.setNumber(1)
.create();
oneDolar.divide(3);
fail(); // if no exception
}

@Test
public void givenAmounts_whenSummed_thanCorrect() {
MonetaryAmount[] monetaryAmounts = new MonetaryAmount[]{
Money.of(100, "CHF"), Money.of(10.20, "CHF"), Money.of(1.15, "CHF")};
List<MonetaryAmount> monetaryAmounts = Arrays.asList(Money.of(100, "CHF"), Money.of(10.20, "CHF"), Money.of(1.15, "CHF"));

Money sumAmtCHF = Money.of(0, "CHF");
for (MonetaryAmount monetaryAmount : monetaryAmounts) {
sumAmtCHF = sumAmtCHF.add(monetaryAmount);
}
Money sumAmtCHF = (Money) monetaryAmounts
.stream()
.reduce(Money.of(0, "CHF"), MonetaryAmount::add);

assertEquals("CHF 111.35", sumAmtCHF.toString());
}
Expand All @@ -84,9 +96,19 @@ public void givenArithmetic_whenStringified_thanEqualsAmount() {
CurrencyUnit usd = Monetary.getCurrency("USD");

Money moneyof = Money.of(12, usd);
MonetaryAmount fstAmtUSD = Monetary.getDefaultAmountFactory().setCurrency(usd).setNumber(200.50).create();
MonetaryAmount oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
Money subtractedAmount = Money.of(1, "USD").subtract(fstAmtUSD);
MonetaryAmount fstAmtUSD = Monetary
.getDefaultAmountFactory()
.setCurrency(usd)
.setNumber(200.50)
.create();
MonetaryAmount oneDolar = Monetary
.getDefaultAmountFactory()
.setCurrency("USD")
.setNumber(1)
.create();
Money subtractedAmount = Money
.of(1, "USD")
.subtract(fstAmtUSD);
MonetaryAmount multiplyAmount = oneDolar.multiply(0.25);
MonetaryAmount divideAmount = oneDolar.divide(0.25);

Expand All @@ -101,19 +123,31 @@ public void givenArithmetic_whenStringified_thanEqualsAmount() {

@Test
public void givenAmount_whenRounded_thanEquals() {
MonetaryAmount fstAmtEUR = Monetary.getDefaultAmountFactory().setCurrency("EUR").setNumber(1.30473908).create();
MonetaryAmount fstAmtEUR = Monetary
.getDefaultAmountFactory()
.setCurrency("EUR")
.setNumber(1.30473908)
.create();
MonetaryAmount roundEUR = fstAmtEUR.with(Monetary.getDefaultRounding());
assertEquals("EUR 1.30473908", fstAmtEUR.toString());
assertEquals("EUR 1.3", roundEUR.toString());
}

@Test
public void givenAmount_whenCustomFormat_thanEquals() {
MonetaryAmount oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
MonetaryAmount oneDolar = Monetary
.getDefaultAmountFactory()
.setCurrency("USD")
.setNumber(1)
.create();
MonetaryAmountFormat formatUSD = MonetaryFormats.getAmountFormat(Locale.US);
String usFormatted = formatUSD.format(oneDolar);

MonetaryAmountFormat customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder.of(Locale.US).set(CurrencyStyle.NAME).set("pattern", "00000.00 ¤").build());
MonetaryAmountFormat customFormat = MonetaryFormats.getAmountFormat(AmountFormatQueryBuilder
.of(Locale.US)
.set(CurrencyStyle.NAME)
.set("pattern", "00000.00 ¤")
.build());
String customFormatted = customFormat.format(oneDolar);

assertEquals("USD 1", oneDolar.toString());
Expand All @@ -126,11 +160,25 @@ public void givenAmount_whenCustomFormat_thanEquals() {
@Test
public void givenAmount_whenConversion_thenNotNull() {
CurrencyUnit USD = Monetary.getCurrency("USD");
MonetaryAmount oneDolar = Monetary.getDefaultAmountFactory().setCurrency("USD").setNumber(1).create();
MonetaryAmount fstAmtEUR = Monetary.getDefaultAmountFactory().setCurrency("EUR").setNumber(1.30473908).create();

CurrencyConversion convEUR = MonetaryConversions.getConversion(ConversionQueryBuilder.of().setTermCurrency("EUR").build());
CurrencyConversion convUSD = MonetaryConversions.getConversion(ConversionQueryBuilder.of().setTermCurrency(USD).build());
MonetaryAmount oneDolar = Monetary
.getDefaultAmountFactory()
.setCurrency("USD")
.setNumber(1)
.create();
MonetaryAmount fstAmtEUR = Monetary
.getDefaultAmountFactory()
.setCurrency("EUR")
.setNumber(1.30473908)
.create();

CurrencyConversion convEUR = MonetaryConversions.getConversion(ConversionQueryBuilder
.of()
.setTermCurrency("EUR")
.build());
CurrencyConversion convUSD = MonetaryConversions.getConversion(ConversionQueryBuilder
.of()
.setTermCurrency(USD)
.build());

CurrencyConversion conversionUSD = MonetaryConversions.getConversion("USD");
CurrencyConversion conversionEUR = MonetaryConversions.getConversion("EUR");
Expand Down