Interpolator1DFactoryTest.java example

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

import static org.testng.AssertJUnit.assertEquals;
import static org.testng.AssertJUnit.assertNull;

import org.testng.annotations.Test;

import com.opengamma.util.test.TestGroup;

/**
 * Test.
 */
@Test(groups = TestGroup.UNIT)
public class Interpolator1DFactoryTest {

  @Test(expectedExceptions = IllegalArgumentException.class)
  public void testBadName() {
    Interpolator1DFactory.getInterpolator("x");
  }

  @Test
  public void testNullCalculator() {
    assertNull(Interpolator1DFactory.getInterpolatorName(null));
  }

  @Test
  public void test() {
    assertEquals(Interpolator1DFactory.LINEAR, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.LINEAR)));
    assertEquals(Interpolator1DFactory.EXPONENTIAL, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.EXPONENTIAL)));
    assertEquals(Interpolator1DFactory.LOG_LINEAR, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.LOG_LINEAR)));
    assertEquals(Interpolator1DFactory.NATURAL_CUBIC_SPLINE, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.NATURAL_CUBIC_SPLINE)));
    assertEquals(Interpolator1DFactory.DOUBLE_QUADRATIC, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.DOUBLE_QUADRATIC)));
    assertEquals(Interpolator1DFactory.STEP, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.STEP)));
    assertEquals(Interpolator1DFactory.STEP_UPPER, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.STEP_UPPER)));
    assertEquals(Interpolator1DFactory.TIME_SQUARE, Interpolator1DFactory.getInterpolatorName(Interpolator1DFactory.getInterpolator(Interpolator1DFactory.TIME_SQUARE)));
    assertEquals(Interpolator1DFactory.LINEAR_EXTRAPOLATOR, Interpolator1DFactory.getInterpolatorName(new LinearExtrapolator1D(new LinearInterpolator1D())));
    assertEquals(Interpolator1DFactory.FLAT_EXTRAPOLATOR, Interpolator1DFactory.getInterpolatorName(new FlatExtrapolator1D()));
    assertEquals(Interpolator1DFactory.EXPONENTIAL_EXTRAPOLATOR, Interpolator1DFactory.getInterpolatorName(new ExponentialExtrapolator1D()));
    assertEquals(Interpolator1DFactory.PRODUCT_NATURAL_CUBIC,
        Interpolator1DFactory.getInterpolatorName(new ProductPiecewisePolynomialInterpolator1D(
            new NaturalSplineInterpolator())));
    assertEquals(Interpolator1DFactory.RECIPROCAL_EXTRAPOLATOR,
        Interpolator1DFactory.getInterpolatorName(new ReciprocalExtrapolator1D(
            Interpolator1DFactory.PRODUCT_NATURAL_CUBIC_INSTANCE)));
    assertEquals(Interpolator1DFactory.PRODUCT_POLYNOMIAL_EXTRAPOLATOR,
        Interpolator1DFactory.getInterpolatorName(new ProductPolynomialExtrapolator1D(
            Interpolator1DFactory.PRODUCT_NATURAL_CUBIC_INSTANCE)));
  }
}