GaussianQuadratureDataTest.java

/**
 * Copyright (C) 2009 - present by OpenGamma Inc. and the OpenGamma group of companies
 *
 * Please see distribution for license.
 */
package com.opengamma.strata.math.impl.integration;

import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertFalse;
import static org.testng.internal.junit.ArrayAsserts.assertArrayEquals;

import org.testng.annotations.Test;

/**
 * Test.
 */
@Test
public class GaussianQuadratureDataTest {
  private static final double[] X = new double[] {1, 2, 3, 4 };
  private static final double[] W = new double[] {6, 7, 8, 9 };
  private static final GaussianQuadratureData F = new GaussianQuadratureData(X, W);

  @Test(expectedExceptions = IllegalArgumentException.class)
  public void testNullAbscissas() {
    new GaussianQuadratureData(null, W);
  }

  @Test(expectedExceptions = IllegalArgumentException.class)
  public void testNullWeights() {
    new GaussianQuadratureData(X, null);
  }

  @Test(expectedExceptions = IllegalArgumentException.class)
  public void testWrongLength() {
    new GaussianQuadratureData(X, new double[] {1, 2, 3 });
  }

  @Test
  public void test() {
    GaussianQuadratureData other = new GaussianQuadratureData(X, W);
    assertEquals(F, other);
    assertEquals(F.hashCode(), other.hashCode());
    other = new GaussianQuadratureData(W, W);
    assertFalse(F.equals(other));
    other = new GaussianQuadratureData(X, X);
    assertFalse(F.equals(other));
    assertArrayEquals(F.getAbscissas(), X, 0);
    assertArrayEquals(F.getWeights(), W, 0);
  }
}