StreamFactory.java

package org.javamoney.moneta.convert;

import org.javamoney.moneta.Money;

import javax.money.CurrencyUnit;
import javax.money.Monetary;
import javax.money.MonetaryAmount;
import java.math.BigDecimal;
import java.util.stream.Stream;

public final class StreamFactory {

    static final CurrencyUnit EURO = Monetary.getCurrency("EUR");
    static final CurrencyUnit DOLLAR = Monetary.getCurrency("USD");
    static final CurrencyUnit BRAZILIAN_REAL = Monetary
            .getCurrency("BRL");

    /**
     * Private constructor.
     */
    private StreamFactory(){}

    public static Stream<MonetaryAmount> streamCurrencyDifferent() {
        Money m1 = Money.of(BigDecimal.TEN, BRAZILIAN_REAL);
        Money m2 = Money.of(BigDecimal.ZERO, BRAZILIAN_REAL);
        Money m3 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money m4 = Money.of(BigDecimal.valueOf(4L), EURO);
        Money m5 = Money.of(BigDecimal.valueOf(5L), BRAZILIAN_REAL);
        return Stream.of(m1, m2, m3, m4, m5);
    }

    public static Stream<MonetaryAmount> currencies() {
        Money r1 = Money.of(BigDecimal.TEN, BRAZILIAN_REAL);
        Money r2 = Money.of(BigDecimal.ZERO, BRAZILIAN_REAL);
        Money r3 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);

        Money e1 = Money.of(BigDecimal.TEN, EURO);
        Money e2 = Money.of(BigDecimal.ZERO, EURO);
        Money e3 = Money.of(BigDecimal.ONE, EURO);

        Money d1 = Money.of(BigDecimal.TEN, DOLLAR);
        Money d2 = Money.of(BigDecimal.ZERO, DOLLAR);
        Money d3 = Money.of(BigDecimal.ONE, DOLLAR);
        return Stream.of(r1, r2, r3, e1, e2, e3, d1, d2, d3);
    }

    public static Stream<MonetaryAmount> currenciesToSummary() {
        Money r1 = Money.of(BigDecimal.TEN, BRAZILIAN_REAL);
        Money r2 = Money.of(BigDecimal.ZERO, BRAZILIAN_REAL);
        Money r3 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money r4 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money r5 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money r6 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money r7 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money r8 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);

        Money e1 = Money.of(BigDecimal.TEN, EURO);
        Money d1 = Money.of(BigDecimal.ONE, DOLLAR);
        return Stream.of(r1, r2, r3, r4, r5, r6, r7, r8, e1, d1);
    }
    public static  Stream<MonetaryAmount> streamNormal() {
        Money m1 = Money.of(BigDecimal.TEN, BRAZILIAN_REAL);
        Money m2 = Money.of(BigDecimal.ZERO, BRAZILIAN_REAL);
        Money m3 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money m4 = Money.of(BigDecimal.valueOf(4L), BRAZILIAN_REAL);
        Money m5 = Money.of(BigDecimal.valueOf(5L), BRAZILIAN_REAL);
        return Stream.of(m1, m2, m3, m4, m5);
    }

    public static  Stream<MonetaryAmount> streamNull() {
        Money m1 = Money.of(BigDecimal.TEN, BRAZILIAN_REAL);
        Money m2 = Money.of(BigDecimal.ZERO, BRAZILIAN_REAL);
        Money m3 = Money.of(BigDecimal.ONE, BRAZILIAN_REAL);
        Money m4 = Money.of(BigDecimal.valueOf(4L), BRAZILIAN_REAL);
        Money m5 = Money.of(BigDecimal.valueOf(5L), BRAZILIAN_REAL);
        return Stream.of(m1, m2, m3, m4, m5, null);
    }
}