AmountsAddingParameterizedTest.java

package io.konik.util;

import com.neovisionaries.i18n.CurrencyCode;
import io.konik.zugferd.unqualified.Amount;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.math.BigDecimal;
import java.util.Arrays;
import java.util.Collection;

import static org.assertj.core.api.Assertions.assertThat;
import static org.junit.runners.Parameterized.Parameter;
import static org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
public class AmountsAddingParameterizedTest {

	private static final CurrencyCode CURRENCY = CurrencyCode.USD;

	@Parameters(name = "Case {index}: {0} + {1} = {2}")
	public static Collection<Object[]> data() {
		return Arrays.asList(new Object[][]{
				{ BigDecimal.ZERO, BigDecimal.ZERO, BigDecimal.ZERO },
				{ BigDecimal.ONE, BigDecimal.ZERO, BigDecimal.ONE },
				{ BigDecimal.ONE, BigDecimal.ONE, BigDecimal.valueOf(2) },
				{ BigDecimal.valueOf(10), BigDecimal.valueOf(-100), BigDecimal.valueOf(-90) },
				{ BigDecimal.valueOf(2.34), BigDecimal.valueOf(3.11), BigDecimal.valueOf(5.45) }
		});
	}

	@Parameter
	public BigDecimal first;

	@Parameter(1)
	public BigDecimal second;

	@Parameter(2)
	public BigDecimal result;

	@Test
	public void test() {
		assertThat(Amounts.add(new Amount(first, CURRENCY), new Amount(second, CURRENCY)))
				.isEqualToComparingFieldByField(new Amount(result, CURRENCY));
	}
}