AmountCalculatorCalculateSpecifiedMonetarySummationTest.java

package io.konik.validation;

import io.konik.InvoiceTransformer;
import io.konik.util.Items;
import io.konik.zugferd.Invoice;
import io.konik.zugferd.entity.trade.item.Item;
import io.konik.zugferd.entity.trade.item.SpecifiedMonetarySummation;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;

import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.Collection;
import java.util.List;

import static org.assertj.core.api.Assertions.assertThat;

@RunWith(Parameterized.class)
public class AmountCalculatorCalculateSpecifiedMonetarySummationTest {

	@Parameterized.Parameters(name = "Calculating specified monetary summation for object with index = {index}")
	public static Collection<Object[]> data() throws IOException {
		InputStream xml = AmountCalculatorCalculateSpecifiedMonetarySummationTest.class
				.getResourceAsStream("/ZUGFeRD_Invoice_with_discounts_and_charges.xml");

		InvoiceTransformer transformer = new InvoiceTransformer();
		Invoice invoice = transformer.toModel(xml);
		List<Item> items = Items.purchasableItemsOnly(invoice.getTrade().getItems());

		Object[][] objects = new Object[items.size()][1];
		for (int i = 0; i < items.size(); i++) {
			objects[i][0] = items.get(i);
		}
		return Arrays.asList(objects);
	}

	@Parameterized.Parameter
	public Item item;

	@Test
	public void test() {
		//when:
		SpecifiedMonetarySummation monetarySummation = AmountCalculator.calculateSpecifiedMonetarySummation(item);

		//then:
		assertThat(item.getSettlement().getMonetarySummation().getLineTotal())
				.isEqualToComparingFieldByField(monetarySummation.getLineTotal());

		assertThat(item.getSettlement().getMonetarySummation().getTotalAllowanceCharge().getValue())
				.isEqualByComparingTo(monetarySummation.getTotalAllowanceCharge().getValue());
	}
}