PaymentTest.java

/**
 * Copyright (C) 2015 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.strata.basics.currency;

import static com.opengamma.strata.basics.currency.Currency.EUR;
import static com.opengamma.strata.basics.currency.Currency.GBP;
import static com.opengamma.strata.collect.TestHelper.assertSerialization;
import static com.opengamma.strata.collect.TestHelper.coverBeanEquals;
import static com.opengamma.strata.collect.TestHelper.coverImmutableBean;
import static com.opengamma.strata.collect.TestHelper.date;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertSame;

import java.time.LocalDate;
import java.time.temporal.TemporalAdjusters;

import org.testng.annotations.Test;

/**
 * Test {@link Payment}.
 */
@Test
public class PaymentTest {

  private static final CurrencyAmount GBP_P1000 = CurrencyAmount.of(GBP, 1_000);
  private static final CurrencyAmount GBP_M1000 = CurrencyAmount.of(GBP, -1_000);
  private static final CurrencyAmount EUR_P1600 = CurrencyAmount.of(EUR, 1_600);
  private static final LocalDate DATE_2015_06_29 = date(2015, 6, 29);
  private static final LocalDate DATE_2015_06_30 = date(2015, 6, 30);

  //-------------------------------------------------------------------------
  public void test_of_3args() {
    Payment test = Payment.of(GBP, 1000, DATE_2015_06_30);
    assertEquals(test.getValue(), GBP_P1000);
    assertEquals(test.getCurrency(), GBP);
    assertEquals(test.getAmount(), 1_000, 0d);
    assertEquals(test.getDate(), DATE_2015_06_30);
  }

  public void test_of_2args() {
    Payment test = Payment.of(GBP_P1000, DATE_2015_06_30);
    assertEquals(test.getValue(), GBP_P1000);
    assertEquals(test.getCurrency(), GBP);
    assertEquals(test.getAmount(), 1_000, 0d);
    assertEquals(test.getDate(), DATE_2015_06_30);
  }

  public void test_ofPay() {
    Payment test = Payment.ofPay(GBP_P1000, DATE_2015_06_30);
    assertEquals(test.getValue(), GBP_M1000);
    assertEquals(test.getCurrency(), GBP);
    assertEquals(test.getAmount(), -1_000, 0d);
    assertEquals(test.getDate(), DATE_2015_06_30);
  }

  public void test_ofReceive() {
    Payment test = Payment.ofReceive(GBP_P1000, DATE_2015_06_30);
    assertEquals(test.getValue(), GBP_P1000);
    assertEquals(test.getCurrency(), GBP);
    assertEquals(test.getAmount(), 1_000, 0d);
    assertEquals(test.getDate(), DATE_2015_06_30);
  }

  public void test_builder() {
    Payment test = Payment.builder()
        .value(GBP_P1000)
        .date(DATE_2015_06_30)
        .build();
    assertEquals(test.getValue(), GBP_P1000);
    assertEquals(test.getCurrency(), GBP);
    assertEquals(test.getAmount(), 1_000, 0d);
    assertEquals(test.getDate(), DATE_2015_06_30);
  }

  //-------------------------------------------------------------------------
  public void test_adjustDate() {
    Payment test = Payment.ofReceive(GBP_P1000, DATE_2015_06_29);
    Payment expected = Payment.of(GBP_P1000, DATE_2015_06_29.plusDays(1));
    assertEquals(test.adjustDate(TemporalAdjusters.ofDateAdjuster(d -> d.plusDays(1))), expected);
  }

  public void test_adjustDate_noChange() {
    Payment test = Payment.ofReceive(GBP_P1000, DATE_2015_06_29);
    assertSame(test.adjustDate(TemporalAdjusters.ofDateAdjuster(d -> d.plusDays(1).minusDays(1))), test);
  }

  //-------------------------------------------------------------------------
  public void test_negated() {
    Payment test = Payment.ofReceive(GBP_P1000, DATE_2015_06_30);
    assertEquals(test.negated(), Payment.of(GBP_M1000, DATE_2015_06_30));
  }

  //-------------------------------------------------------------------------
  public void test_convertedTo_rateProvider() {
    Payment test = Payment.ofReceive(GBP_P1000, DATE_2015_06_30);
    FxRateProvider provider = (ccy1, ccy2) -> 1.6d;
    assertEquals(test.convertedTo(EUR, provider), Payment.ofReceive(EUR_P1600, DATE_2015_06_30));
    assertEquals(test.convertedTo(GBP, provider), test);
  }

  //-------------------------------------------------------------------------
  public void coverage() {
    Payment test = Payment.of(GBP_P1000, DATE_2015_06_30);
    coverImmutableBean(test);
    Payment test2 = Payment.of(EUR_P1600, DATE_2015_06_29);
    coverBeanEquals(test, test2);
  }

  public void test_serialization() {
    Payment test = Payment.of(GBP_P1000, DATE_2015_06_30);
    assertSerialization(test);
  }

}