BoundsOnRatiosInSampledSetsTest.java

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package org.apache.datasketches.common;

import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.checkInputs;
import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.getEstimateOfA;
import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.getEstimateOfB;
import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.getEstimateOfBoverA;
import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.getLowerBoundForBoverA;
import static org.apache.datasketches.common.BoundsOnRatiosInSampledSets.getUpperBoundForBoverA;
import static org.testng.Assert.assertEquals;

import org.testng.annotations.Test;

public class BoundsOnRatiosInSampledSetsTest {

  @Test
  public void checkNormalReturns() {
    getLowerBoundForBoverA(500, 100, .1);
    getLowerBoundForBoverA(500, 100, 0.75);
    getLowerBoundForBoverA(500, 100, 1.0);
    assertEquals(getLowerBoundForBoverA(0, 0, .1), 0.0, 0.0);

    getUpperBoundForBoverA(500, 100, .1);
    getUpperBoundForBoverA(500, 100, 0.75);
    getUpperBoundForBoverA(500, 100, 1.0);
    assertEquals(getUpperBoundForBoverA(0, 0, .1), 1.0, 0.0);

    getEstimateOfBoverA(500,100);
    getEstimateOfA(500, .1);
    getEstimateOfB(100, .1);
    assertEquals(getEstimateOfBoverA(0, 0), .5, 0.0);
  }

  @Test(expectedExceptions = SketchesArgumentException.class)
  public void checkInputA() {
    checkInputs(-1, 0, .3);
  }

  @Test(expectedExceptions = SketchesArgumentException.class)
  public void checkInputB() {
    checkInputs(500, -1, .3);
  }

  @Test(expectedExceptions = SketchesArgumentException.class)
  public void checkInputF() {
    checkInputs(500, 100, -1);
  }

}