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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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/*
 * @test
 * @bug 8347949
 * @summary Ensure underlying element equality of available currency methods
 * @run junit AvailableCurrenciesTest
 */

import java.util.Currency;
import java.util.stream.Collectors;

import org.junit.jupiter.api.Test;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class AvailableCurrenciesTest {

    // Validate the equality of the set and stream of available currencies
    @Test
    public void streamEqualsSetTest() {
        var currencies = Currency.getAvailableCurrencies();
        assertEquals(currencies, Currency.availableCurrencies().collect(Collectors.toSet()),
                "availableCurrencies() and getAvailableCurrencies() do not have the same elements");
    }

    // Ensure there are no duplicates in the available currencies
    @Test
    public void noDuplicatesTest() {
        assertEquals(Currency.getAvailableCurrencies().size(),
                Currency.availableCurrencies().distinct().count(),
                "Duplicate currencies returned by availableCurrencies()");
    }
}