Package ffx.numerics.integrate

Class Integrate1DTest

java.lang.Object
ffx.utilities.FFXTest
ffx.numerics.integrate.Integrate1DTest
public class Integrate1DTest extends ffx.utilities.FFXTest
The IntegrationTest is a JUnit test for the Integration program that ensures that the integrals are calculated correctly. This test is run using known integrals calculated with the equation y=10sin(6x)-7cos(5x)+11sin(8x).
Author:
Claire O'Connell

  • Field Summary

    Fields inherited from class ffx.utilities.FFXTest

    ffxCI, ffxOpenMM

  • Constructor Summary

    Constructors
    Constructor
    Description
    Integrate1DTest()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    castToDoubleSetTest()
    Ensures that integration performs the same on a DoublesDataSet constructed from a function as directly from the function; uses both DoublesDataSet constructors.
    void
    parallelTest()
    Tests the parallelized versions of the integration methods.
    void
    polynomialGrinderTest()
    A more difficult test on polynomials, with just five points and larger coefficients; intended to test stability in extreme cases.
    void
    polynomialTest()
    Basic test for polynomial functions; checks to ensure that each integration method is behaving as expected, and returns the exact value (to within machine precision) when the method should be exact.
    void
    testByBinIntegral()
    Ensures that the by-bin integration machinery matches an all-at-once integral.
    void
    testSinCosine()
     

    Methods inherited from class ffx.utilities.FFXTest

    afterClass, afterTest, beforeClass, beforeTest, registerTemporaryDirectory

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Integrate1DTest

      public Integrate1DTest()

  • Method Details

    • castToDoubleSetTest

      public void castToDoubleSetTest()
      Ensures that integration performs the same on a DoublesDataSet constructed from a function as directly from the function; uses both DoublesDataSet constructors.

    • parallelTest

      public void parallelTest()
      Tests the parallelized versions of the integration methods. Overall, these are not recommended for production use; it would require an enormous number of points for numerical integration of a 1-D function to be at all significant for timing, and the parallelized versions are probably not quite as CPU-efficient.

    • polynomialGrinderTest

      public void polynomialGrinderTest()
      A more difficult test on polynomials, with just five points and larger coefficients; intended to test stability in extreme cases.

    • polynomialTest

      public void polynomialTest()
      Basic test for polynomial functions; checks to ensure that each integration method is behaving as expected, and returns the exact value (to within machine precision) when the method should be exact. For example, Simpson's method fits a quadratic curve to 3 points, and should return the exact integral for polynomials of degree 2 or less.

    • testByBinIntegral

      public void testByBinIntegral()
      Ensures that the by-bin integration machinery matches an all-at-once integral.

    • testSinCosine

      public void testSinCosine()