Cepstral Pitch Tracker

BOOST_AUTO_TEST_CASE(start)

{

    // Can't meaningfully interpolate if we're identifying element 0

    // as the peak

    double data[] = { 1.0, 1.0, 0.0, 0.0 };

    PeakInterpolator p;

    double result = p.findPeakLocation(data, 4, 0);

    BOOST_CHECK_EQUAL(result, 0.0);

}

BOOST_AUTO_TEST_CASE(end)

{

    // Likewise for the final element

    double data[] = { 0.0, 0.0, 1.0, 1.0 };

    PeakInterpolator p;

    double result = p.findPeakLocation(data, 4, 3);

    BOOST_CHECK_EQUAL(result, 3.0);

}

BOOST_AUTO_TEST_CASE(longHalfway)

{

    double data[] = { 1.0, 1.0, 1.0, 2.0, 2.0, 1.0, 1.0, 1.0 };

    PeakInterpolator p;

    double result = p.findPeakLocation(data, 8, 4);

    BOOST_CHECK_EQUAL(result, 3.5);

}

BOOST_AUTO_TEST_CASE(shortHalfway)

{

    double data[] = { 1.0, 2.0, 2.0, 1.0 };

    PeakInterpolator p;

    double result = p.findPeakLocation(data, 4, 1);

    BOOST_CHECK_EQUAL(result, 1.5);

}