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HistogramTest.h
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HistogramTest.h
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// Mantid Repository : https://github.com/mantidproject/mantid
//
// Copyright © 2018 ISIS Rutherford Appleton Laboratory UKRI,
// NScD Oak Ridge National Laboratory, European Spallation Source,
// Institut Laue - Langevin & CSNS, Institute of High Energy Physics, CAS
// SPDX - License - Identifier: GPL - 3.0 +
#pragma once
#include <cxxtest/TestSuite.h>
#include "MantidHistogramData/Histogram.h"
#include "MantidHistogramData/HistogramIterator.h"
#include "MantidHistogramData/LinearGenerator.h"
using Mantid::HistogramData::BinEdges;
using Mantid::HistogramData::Counts;
using Mantid::HistogramData::CountStandardDeviations;
using Mantid::HistogramData::CountVariances;
using Mantid::HistogramData::Frequencies;
using Mantid::HistogramData::FrequencyStandardDeviations;
using Mantid::HistogramData::FrequencyVariances;
using Mantid::HistogramData::getHistogramXMode;
using Mantid::HistogramData::Histogram;
using Mantid::HistogramData::HistogramE;
using Mantid::HistogramData::HistogramX;
using Mantid::HistogramData::HistogramY;
using Mantid::HistogramData::LinearGenerator;
using Mantid::HistogramData::Points;
using Mantid::HistogramData::PointStandardDeviations;
class HistogramTest : public CxxTest::TestSuite {
public:
// This pair of boilerplate methods prevent the suite being created statically
// This means the constructor isn't called when running other tests
static HistogramTest *createSuite() { return new HistogramTest(); }
static void destroySuite(HistogramTest *suite) { delete suite; }
void test_construction_Points_Counts() {
TS_ASSERT_THROWS_NOTHING(Histogram hist(Histogram::XMode::Points, Histogram::YMode::Counts));
}
void test_construction_BinEdges_Counts() {
TS_ASSERT_THROWS_NOTHING(Histogram hist(Histogram::XMode::BinEdges, Histogram::YMode::Counts));
}
void test_construction_Points_Frequencies() {
TS_ASSERT_THROWS_NOTHING(Histogram hist(Histogram::XMode::Points, Histogram::YMode::Frequencies));
}
void test_construction_BinEdges_Frequencies() {
TS_ASSERT_THROWS_NOTHING(Histogram hist(Histogram::XMode::BinEdges, Histogram::YMode::Frequencies));
}
void test_construct_from_Points() {
TS_ASSERT_THROWS_NOTHING(Histogram src(Points(0)));
TS_ASSERT_THROWS_NOTHING(Histogram src(Points{0.1, 0.2, 0.4}));
}
void test_construct_from_BinEdges() {
TS_ASSERT_THROWS_NOTHING(Histogram src(BinEdges(0)));
TS_ASSERT_THROWS_NOTHING(Histogram src(BinEdges{0.1, 0.2, 0.4}));
}
void test_construct_from_invalid_BinEdges() {
BinEdges binEdges(1);
TS_ASSERT_THROWS(Histogram{binEdges}, const std::logic_error &);
}
void test_construct_Points_Counts() {
TS_ASSERT_THROWS_NOTHING(Histogram src(Points{0.1, 0.2, 0.4}, Counts{1, 2, 4}));
}
void test_construct_Points_Counts_CountVariances() {
TS_ASSERT_THROWS_NOTHING(Histogram src(Points{1.0, 2.0}, Counts(2), CountVariances(2)));
}
void test_construct_Points_null_Counts_CountVariances() {
TS_ASSERT_THROWS_NOTHING(Histogram src(Points{1.0, 2.0}, Counts(), CountVariances()));
}
void test_construct_values_size_mismatch() {
TS_ASSERT_THROWS(Histogram(Points(1), Counts(2)), const std::logic_error &);
TS_ASSERT_THROWS(Histogram(BinEdges{1.0, 2.0}, Counts(2)), const std::logic_error &);
TS_ASSERT_THROWS(Histogram(Points(1), Frequencies(2)), const std::logic_error &);
TS_ASSERT_THROWS(Histogram(BinEdges{1.0, 2.0}, Frequencies(2)), const std::logic_error &);
}
void test_construct_values_uncertainties_size_mismatch() {
TS_ASSERT_THROWS(Histogram(Points{1.0, 2.0}, Counts(2), CountVariances(1)), const std::logic_error &);
TS_ASSERT_THROWS(Histogram(Points{1.0, 2.0}, Frequencies(2), FrequencyVariances(1)), const std::logic_error &);
}
void test_construct_null_values_but_uncertainties_fail() {
TS_ASSERT_THROWS(Histogram(Points{1.0, 2.0}, Counts(), CountVariances(2)), const std::logic_error &);
}
void test_construct_Counts_automatic_errors() {
Histogram histogram(BinEdges{1.0, 2.0, 3.0}, Counts{4.0, 9.0});
TS_ASSERT(histogram.sharedE());
TS_ASSERT_EQUALS(histogram.e()[0], 2.0);
TS_ASSERT_EQUALS(histogram.e()[1], 3.0);
}
void test_copy_constructor() {
Histogram src(Points{0.1, 0.2, 0.4});
Histogram dest(src);
TS_ASSERT(src.points());
auto points = dest.points();
TS_ASSERT(points);
TS_ASSERT_EQUALS(points.size(), 3);
TS_ASSERT_EQUALS(points[0], 0.1);
TS_ASSERT_EQUALS(points[1], 0.2);
TS_ASSERT_EQUALS(points[2], 0.4);
}
void test_move_constructor() {
Histogram src(Points{0.1, 0.2, 0.4});
Histogram dest(std::move(src));
TS_ASSERT(!src.points());
TS_ASSERT(dest.points());
}
void test_copy_assignment() {
Histogram src(Points{0.1, 0.2, 0.4});
Histogram dest(Histogram::XMode::BinEdges, Histogram::YMode::Counts);
TS_ASSERT_EQUALS(dest.xMode(), Histogram::XMode::BinEdges);
dest = src;
TS_ASSERT(src.points());
TS_ASSERT_EQUALS(dest.xMode(), Histogram::XMode::Points);
auto points = dest.points();
TS_ASSERT(points);
TS_ASSERT_EQUALS(points.size(), 3);
TS_ASSERT_EQUALS(points[0], 0.1);
TS_ASSERT_EQUALS(points[1], 0.2);
TS_ASSERT_EQUALS(points[2], 0.4);
}
void test_move_assignment() {
Histogram src(Points{0.1, 0.2, 0.4});
Histogram dest(Histogram::XMode::BinEdges, Histogram::YMode::Counts);
TS_ASSERT_EQUALS(dest.xMode(), Histogram::XMode::BinEdges);
dest = std::move(src);
TS_ASSERT(!src.points());
TS_ASSERT(dest.points());
TS_ASSERT_EQUALS(dest.xMode(), Histogram::XMode::Points);
}
void test_size() {
TS_ASSERT_EQUALS(Histogram(BinEdges(0)).size(), 0);
TS_ASSERT_EQUALS(Histogram(BinEdges(2)).size(), 1);
TS_ASSERT_EQUALS(Histogram(BinEdges(3)).size(), 2);
TS_ASSERT_EQUALS(Histogram(Points(0)).size(), 0);
TS_ASSERT_EQUALS(Histogram(Points(1)).size(), 1);
TS_ASSERT_EQUALS(Histogram(Points(2)).size(), 2);
}
void test_resize_point_data() {
Histogram histogram(Points(3), Counts(3));
histogram.resize(2);
TS_ASSERT_EQUALS(histogram.size(), 2);
TS_ASSERT_EQUALS(histogram.x().size(), 2);
TS_ASSERT_EQUALS(histogram.y().size(), 2);
histogram.resize(1);
TS_ASSERT_EQUALS(histogram.size(), 1);
TS_ASSERT_EQUALS(histogram.x().size(), 1);
TS_ASSERT_EQUALS(histogram.y().size(), 1);
histogram.resize(0);
TS_ASSERT_EQUALS(histogram.size(), 0);
TS_ASSERT_EQUALS(histogram.x().size(), 0);
TS_ASSERT_EQUALS(histogram.y().size(), 0);
}
void test_resize_histogram() {
Histogram histogram(BinEdges(4), Counts(3));
histogram.resize(2);
TS_ASSERT_EQUALS(histogram.size(), 2);
TS_ASSERT_EQUALS(histogram.x().size(), 3);
TS_ASSERT_EQUALS(histogram.y().size(), 2);
histogram.resize(1);
TS_ASSERT_EQUALS(histogram.size(), 1);
TS_ASSERT_EQUALS(histogram.x().size(), 2);
TS_ASSERT_EQUALS(histogram.y().size(), 1);
histogram.resize(0);
TS_ASSERT_EQUALS(histogram.size(), 0);
TS_ASSERT_EQUALS(histogram.x().size(), 0);
TS_ASSERT_EQUALS(histogram.y().size(), 0);
}
void test_xMode() {
Histogram hist1(Histogram::XMode::Points, Histogram::YMode::Counts);
TS_ASSERT_EQUALS(hist1.xMode(), Histogram::XMode::Points);
Histogram hist2(Histogram::XMode::BinEdges, Histogram::YMode::Counts);
TS_ASSERT_EQUALS(hist2.xMode(), Histogram::XMode::BinEdges);
}
void test_getHistogramXMode() {
TS_ASSERT_EQUALS(getHistogramXMode(0, 0), Histogram::XMode::Points);
TS_ASSERT_EQUALS(getHistogramXMode(1, 1), Histogram::XMode::Points);
TS_ASSERT_EQUALS(getHistogramXMode(1, 0), Histogram::XMode::BinEdges);
TS_ASSERT_EQUALS(getHistogramXMode(2, 1), Histogram::XMode::BinEdges);
TS_ASSERT_THROWS(getHistogramXMode(2, 0), const std::logic_error &);
TS_ASSERT_THROWS(getHistogramXMode(3, 1), const std::logic_error &);
TS_ASSERT_THROWS(getHistogramXMode(0, 1), const std::logic_error &);
}
void test_assignment() {
const Histogram src(Points(1));
Histogram dest(Points(1));
TS_ASSERT_THROWS_NOTHING(dest = src);
TS_ASSERT_EQUALS(&dest.x()[0], &src.x()[0]);
}
void test_assignment_mutating() {
const Histogram src(Points(1));
Histogram dest(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(dest = src);
TS_ASSERT_EQUALS(&dest.x()[0], &src.x()[0]);
}
void test_assignment_size_change() {
Histogram src1(Points(1));
Histogram dest1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(dest1 = src1);
Histogram src2(Points(1));
Histogram dest2(BinEdges{1.0, 2.0, 3.0});
TS_ASSERT_THROWS_NOTHING(dest2 = src2);
Histogram src3(BinEdges{1.0, 2.0});
Histogram dest3(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(dest3 = src3);
Histogram src4(BinEdges{1.0, 2.0});
Histogram dest4(BinEdges{1.0, 2.0, 3.0});
TS_ASSERT_THROWS_NOTHING(dest4 = src4);
}
void test_points_from_edges() {
BinEdges binEdges{0.1, 0.2, 0.4};
const Histogram hist(binEdges);
const auto points = hist.points();
TS_ASSERT_DIFFERS(&points[0], &hist.x()[0]);
TS_ASSERT_EQUALS(points.size(), 2);
TS_ASSERT_DELTA(points[0], 0.15, 1e-14);
TS_ASSERT_DELTA(points[1], 0.3, 1e-14);
}
void test_points_from_points() {
const Histogram hist(Points{0.1, 0.2, 0.4});
const auto points = hist.points();
TS_ASSERT_EQUALS(&points[0], &hist.x()[0]);
}
void test_no_counts_and_frequencies() {
const Histogram hist(BinEdges{0.1, 0.2, 0.4});
TS_ASSERT(!hist.counts());
TS_ASSERT(!hist.countVariances());
TS_ASSERT(!hist.countStandardDeviations());
TS_ASSERT(!hist.frequencies());
TS_ASSERT(!hist.frequencyVariances());
TS_ASSERT(!hist.frequencyStandardDeviations());
}
void test_counts() {
Histogram hist(BinEdges{0.1, 0.2, 0.4});
hist.setCounts(Counts{10, 100});
TS_ASSERT(hist.counts());
TS_ASSERT_EQUALS(hist.counts().size(), 2);
TS_ASSERT_EQUALS(hist.counts()[0], 10);
TS_ASSERT_EQUALS(hist.counts()[1], 100);
}
void test_counts_references_internal_data() {
Histogram hist(BinEdges{0.1, 0.2, 0.4});
hist.setCounts(Counts{10, 100});
TS_ASSERT_EQUALS(&hist.counts()[0], &hist.counts()[0]);
}
void test_frequencies() {
Histogram hist(BinEdges{0.1, 0.2, 0.4});
hist.setCounts(Counts{10, 100});
TS_ASSERT(hist.frequencies());
TS_ASSERT_EQUALS(hist.frequencies().size(), 2);
TS_ASSERT_EQUALS(hist.frequencies()[0], 100.0);
TS_ASSERT_EQUALS(hist.frequencies()[1], 500.0);
}
void test_frequencies_does_not_reference_internal_data() {
Histogram hist(BinEdges{0.1, 0.2, 0.4});
hist.setCounts(Counts{10, 100});
TS_ASSERT_DIFFERS(&hist.frequencies()[0], &hist.frequencies()[0]);
}
void test_setPoints_from_vector() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setPoints(std::vector<double>{0.1, 0.2}));
TS_ASSERT_EQUALS(h1.x().size(), 2);
TS_ASSERT_EQUALS(h1.x()[0], 0.1);
TS_ASSERT_EQUALS(h1.x()[1], 0.2);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setPoints(std::vector<double>{0.1}));
TS_ASSERT_EQUALS(h2.x().size(), 1);
TS_ASSERT_EQUALS(h2.x()[0], 0.1);
}
void test_setPoints_from_Points() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setPoints(Points{0.1, 0.2}));
TS_ASSERT_EQUALS(h1.x().size(), 2);
TS_ASSERT_EQUALS(h1.x()[0], 0.1);
TS_ASSERT_EQUALS(h1.x()[1], 0.2);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setPoints(Points{0.1}));
TS_ASSERT_EQUALS(h2.x().size(), 1);
TS_ASSERT_EQUALS(h2.x()[0], 0.1);
}
void test_setPoints_from_BinEdges() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setPoints(BinEdges{0.1, 0.2, 0.4}));
TS_ASSERT_EQUALS(h1.x().size(), 2);
TS_ASSERT_DELTA(h1.x()[0], 0.15, 1e-14);
TS_ASSERT_DELTA(h1.x()[1], 0.3, 1e-14);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setPoints(BinEdges{0.1, 0.2}));
TS_ASSERT_EQUALS(h2.x().size(), 1);
TS_ASSERT_DELTA(h2.x()[0], 0.15, 1e-14);
}
void test_setPoints_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS_NOTHING(h1.setPoints(std::vector<double>(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h1.setPoints(Points(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h1.setPoints(BinEdges(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS_NOTHING(h2.setPoints(std::vector<double>(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h2.setPoints(Points(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h2.setPoints(BinEdges(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
}
void test_setPoints_size_mismatch() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS(h1.setPoints(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(std::vector<double>{1.0, 2.0, 3.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(Points{1.0, 2.0, 3.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(BinEdges{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(BinEdges{1.0, 2.0, 3.0, 4.0}), const std::logic_error &);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS(h2.setPoints(std::vector<double>(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(std::vector<double>{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(Points(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(Points{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(BinEdges(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(BinEdges{1.0, 2.0, 3.0}), const std::logic_error &);
}
void test_setPoints_size_mismatch_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS(h1.setPoints(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setPoints(BinEdges(1)), const std::logic_error &);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS(h2.setPoints(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setPoints(BinEdges(1)), const std::logic_error &);
}
void test_setPoints_self_assignment() {
Histogram h(Points(0));
auto &x = h.x();
auto old_address = &x;
h.setPoints(x);
TS_ASSERT_EQUALS(&h.x(), old_address);
}
void test_setPoints_legacy_self_assignment() {
Histogram h(Points(0));
auto &x = h.readX();
auto old_address = &x;
h.setPoints(x);
TS_ASSERT_EQUALS(&h.readX(), old_address);
}
void test_setPoints_self_assignment_with_size_mismatch() {
Histogram h(BinEdges{1.0, 2.0});
auto &x = h.x();
// This test makes sure that size mismatch takes precedence over the
// self-assignment check. x is bin edges, setting it as points should fail.
TS_ASSERT_THROWS(h.setPoints(x), const std::logic_error &);
}
void test_setPoints_keepsDxStorageMode() {
Histogram hist(BinEdges{1.0, 2.0, 3.0});
auto dx = {1.0, 2.0};
hist.setPointStandardDeviations(dx);
hist.setPoints(Points{1.0, 2.0});
TS_ASSERT_EQUALS(hist.dx().size(), 2);
TS_ASSERT_EQUALS(hist.dx()[0], 1.0);
TS_ASSERT_EQUALS(hist.dx()[1], 2.0);
}
void test_edges_from_edges() {
const Histogram hist(BinEdges{0.1, 0.2, 0.4});
const auto edges = hist.binEdges();
TS_ASSERT_EQUALS(&edges[0], &hist.x()[0]);
TS_ASSERT_EQUALS(edges.size(), 3);
}
void test_edges_from_points() {
const Histogram hist(Points{0.1, 0.2, 0.4});
const auto edges = hist.binEdges();
TS_ASSERT_DIFFERS(&edges[0], &hist.x()[0]);
TS_ASSERT_EQUALS(edges.size(), 4);
}
void test_setBinEdges() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(std::vector<double>{1.0, 2.0, 3.0}));
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(Points{1.0, 2.0}));
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(BinEdges{1.0, 2.0, 3.0}));
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(std::vector<double>{1.0, 2.0}));
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(Points(1)));
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(BinEdges{1.0, 2.0}));
}
void test_setBinEdges_from_vector() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(std::vector<double>{0.1, 0.2, 0.4}));
TS_ASSERT_EQUALS(h1.x().size(), 3);
TS_ASSERT_EQUALS(h1.x()[0], 0.1);
TS_ASSERT_EQUALS(h1.x()[1], 0.2);
TS_ASSERT_EQUALS(h1.x()[2], 0.4);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(std::vector<double>{0.1, 0.2}));
TS_ASSERT_EQUALS(h2.x().size(), 2);
TS_ASSERT_EQUALS(h2.x()[0], 0.1);
TS_ASSERT_EQUALS(h2.x()[1], 0.2);
}
void test_setBinEdges_from_Points() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(Points{0.1, 0.3}));
TS_ASSERT_EQUALS(h1.x().size(), 3);
TS_ASSERT_DELTA(h1.x()[0], 0.0, 1e-14);
TS_ASSERT_DELTA(h1.x()[1], 0.2, 1e-14);
TS_ASSERT_DELTA(h1.x()[2], 0.4, 1e-14);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(Points{1.0}));
TS_ASSERT_EQUALS(h2.x().size(), 2);
TS_ASSERT_DELTA(h2.x()[0], 0.5, 1e-14);
TS_ASSERT_DELTA(h2.x()[1], 1.5, 1e-14);
}
void test_setBinEdges_from_BinEdges() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(BinEdges{0.1, 0.2, 0.4}));
TS_ASSERT_EQUALS(h1.x().size(), 3);
TS_ASSERT_EQUALS(h1.x()[0], 0.1);
TS_ASSERT_EQUALS(h1.x()[1], 0.2);
TS_ASSERT_EQUALS(h1.x()[2], 0.4);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(BinEdges{0.1, 0.2}));
TS_ASSERT_EQUALS(h2.x().size(), 2);
TS_ASSERT_EQUALS(h2.x()[0], 0.1);
TS_ASSERT_EQUALS(h2.x()[1], 0.2);
}
void test_setBinEdges_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(std::vector<double>(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(Points(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h1.setBinEdges(BinEdges(0)));
TS_ASSERT_EQUALS(h1.x().size(), 0);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(std::vector<double>(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(Points(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
TS_ASSERT_THROWS_NOTHING(h2.setBinEdges(BinEdges(0)));
TS_ASSERT_EQUALS(h2.x().size(), 0);
}
void test_setBinEdges_size_mismatch() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS(h1.setBinEdges(std::vector<double>{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(std::vector<double>{1.0, 2.0, 3.0, 4.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(Points{1.0, 2.0, 3.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(BinEdges{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(BinEdges{1.0, 2.0, 3.0, 4.0}), const std::logic_error &);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS(h2.setBinEdges(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(std::vector<double>{1.0, 2.0, 3.0}), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(Points(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(Points{1.0, 2.0}), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(BinEdges(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(BinEdges{1.0, 2.0, 3.0}), const std::logic_error &);
}
void test_setBinEdges_size_mismatch_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS(h1.setBinEdges(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setBinEdges(BinEdges(1)), const std::logic_error &);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS(h2.setBinEdges(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(Points(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setBinEdges(BinEdges(1)), const std::logic_error &);
}
void test_setBinEdges_self_assignment() {
Histogram h(BinEdges(0));
auto &x = h.x();
auto old_address = &x;
h.setBinEdges(x);
TS_ASSERT_EQUALS(&h.x(), old_address);
}
void test_setBinEdges_legacy_self_assignment() {
Histogram h(BinEdges(0));
auto &x = h.readX();
auto old_address = &x;
h.setBinEdges(x);
TS_ASSERT_EQUALS(&h.readX(), old_address);
}
void test_setBinEdges_self_assignment_with_size_mismatch() {
Histogram h(Points{1.0, 2.0});
auto &x = h.x();
// This test makes sure that size mismatch takes precedence over the
// self-assignment check. x is points, setting it as bin edges should fail.
TS_ASSERT_THROWS(h.setBinEdges(x), const std::logic_error &);
}
void test_setBinEdges_keepsDxStorageMode() {
Histogram hist(Points{1.0, 2.0});
auto dx = {1.0, 2.0};
hist.setPointStandardDeviations(dx);
hist.setBinEdges(BinEdges{1.0, 2.0, 3.0});
TS_ASSERT_EQUALS(hist.dx().size(), 2);
TS_ASSERT_EQUALS(hist.dx()[0], 1.0);
TS_ASSERT_EQUALS(hist.dx()[1], 2.0);
}
void test_setCounts_size_mismatch() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS(h1.setCounts(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setCounts(std::vector<double>(3)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setCounts(Counts(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setCounts(Counts(3)), const std::logic_error &);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS(h2.setCounts(std::vector<double>(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setCounts(std::vector<double>(2)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setCounts(Counts(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setCounts(Counts(2)), const std::logic_error &);
}
void test_setCounts_size_mismatch_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS(h1.setCounts(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setCounts(Counts(1)), const std::logic_error &);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS(h2.setCounts(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setCounts(Counts(1)), const std::logic_error &);
}
void test_setCounts_self_assignment() {
Histogram h(Points(0));
h.setCounts(0);
auto &y = h.y();
auto old_address = &y;
h.setCounts(y);
TS_ASSERT_EQUALS(&h.y(), old_address);
}
void test_setCounts_legacy_self_assignment() {
Histogram h(Points(0));
h.setCounts(0);
auto &y = h.readY();
auto old_address = &y;
h.setPoints(y);
TS_ASSERT_EQUALS(&h.readY(), old_address);
}
void test_setFrequencies_size_mismatch() {
Histogram h1(Points{1.0, 2.0});
TS_ASSERT_THROWS(h1.setFrequencies(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setFrequencies(std::vector<double>(3)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setFrequencies(Frequencies(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setFrequencies(Frequencies(3)), const std::logic_error &);
Histogram h2(BinEdges{1.0, 2.0});
TS_ASSERT_THROWS(h2.setFrequencies(std::vector<double>(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setFrequencies(std::vector<double>(2)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setFrequencies(Frequencies(0)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setFrequencies(Frequencies(2)), const std::logic_error &);
}
void test_setFrequencies_size_mismatch_degenerate() {
Histogram h1(Points(0));
TS_ASSERT_THROWS(h1.setFrequencies(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h1.setFrequencies(Frequencies(1)), const std::logic_error &);
Histogram h2(BinEdges(0));
TS_ASSERT_THROWS(h2.setFrequencies(std::vector<double>(1)), const std::logic_error &);
TS_ASSERT_THROWS(h2.setFrequencies(Frequencies(1)), const std::logic_error &);
}
void test_setFrequencies_self_assignment() {
Histogram h(Points(0));
h.setFrequencies(0);
auto &y = h.y();
auto old_address = &y;
h.setFrequencies(y);
TS_ASSERT_EQUALS(&h.y(), old_address);
}
void test_setFrequencies_legacy_self_assignment() {
Histogram h(Points(0));
h.setFrequencies(0);
auto &y = h.readY();
auto old_address = &y;
h.setFrequencies(y);
TS_ASSERT_EQUALS(&h.readY(), old_address);
}
void test_setCountVariances() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h.setCountVariances(2));
}
void test_setCountStandardDeviations() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h.setCountStandardDeviations(2));
}
void test_setFrequenciesDataValid() {
Histogram h(BinEdges{1, 2, 3});
std::vector<double> freqs(2, 0.36);
h.setFrequencies(freqs);
TS_ASSERT_EQUALS(freqs, h.y().rawData());
}
void test_setFrequencyVariances() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h.setFrequencyVariances(2));
}
void test_setFrequencyVariancesDataValid() {
Histogram h(BinEdges{1, 2, 3});
std::vector<double> freqVars(2, 100);
std::vector<double> freqStdDevs(2, 10);
h.setFrequencyVariances(freqVars);
TS_ASSERT_EQUALS(freqStdDevs, h.e().rawData());
}
void test_setFrequencyStandardDeviations() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS_NOTHING(h.setFrequencyStandardDeviations(2));
}
void test_setFrequencyStandardDeviationsDataValid() {
Histogram h(BinEdges{1, 2, 3});
std::vector<double> freqStdDevs(2, 0.11);
h.setFrequencyStandardDeviations(freqStdDevs);
TS_ASSERT_EQUALS(freqStdDevs, h.e().rawData());
}
void test_setCountVariances_size_mismatch() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS(h.setCountVariances(1), const std::logic_error &);
TS_ASSERT_THROWS(h.setCountVariances(3), const std::logic_error &);
}
void test_setCountStandardDeviations_size_mismatch() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS(h.setCountStandardDeviations(1), const std::logic_error &);
TS_ASSERT_THROWS(h.setCountStandardDeviations(3), const std::logic_error &);
}
void test_setFrequencyVariances_size_mismatch() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS(h.setFrequencyVariances(1), const std::logic_error &);
TS_ASSERT_THROWS(h.setFrequencyVariances(3), const std::logic_error &);
}
void test_setFrequencyStandardDeviations_size_mismatch() {
Histogram h(Points{1.0, 2.0});
TS_ASSERT_THROWS(h.setFrequencyStandardDeviations(1), const std::logic_error &);
TS_ASSERT_THROWS(h.setFrequencyStandardDeviations(3), const std::logic_error &);
}
void test_error_setter_self_assignment() {
Histogram h(Points{1.0, 2.0});
h.setCountVariances(2);
auto &e = h.e();
auto old_address = &e;
// e is always count standard deviations, self assignment as variances or
// frequencies should fail unless we are setting count standard deviations.
TS_ASSERT_THROWS(h.setCountVariances(e), const std::logic_error &);
TS_ASSERT_THROWS(h.setFrequencyVariances(e), const std::logic_error &);
TS_ASSERT_THROWS(h.setFrequencyStandardDeviations(e), const std::logic_error &);
TS_ASSERT_THROWS_NOTHING(h.setCountStandardDeviations(e));
TS_ASSERT_EQUALS(&h.e(), old_address);
}
void test_x() {
Histogram hist(Points({0.1, 0.2, 0.4}));
TS_ASSERT_EQUALS(hist.x()[0], 0.1);
TS_ASSERT_EQUALS(hist.x()[1], 0.2);
TS_ASSERT_EQUALS(hist.x()[2], 0.4);
}
void test_x_references_internal_data() {
Histogram hist(Points(0));
auto copy(hist);
TS_ASSERT_EQUALS(&hist.x(), ©.x());
}
void test_mutableX() {
Histogram hist(Points({0.1, 0.2, 0.4}));
TS_ASSERT_EQUALS(hist.mutableX()[0], 0.1);
TS_ASSERT_EQUALS(hist.mutableX()[1], 0.2);
TS_ASSERT_EQUALS(hist.mutableX()[2], 0.4);
}
void test_mutableX_triggers_copy() {
Histogram hist(Points(0));
auto copy(hist);
TS_ASSERT_DIFFERS(&hist.x(), ©.mutableX());
}
void test_x_references_same_data_as_binEdges() {
Histogram hist(BinEdges(0));
TS_ASSERT_EQUALS(&hist.x(), &hist.binEdges().data());
TS_ASSERT_DIFFERS(&hist.x(), &hist.points().data());
}
void test_x_references_same_data_as_points() {
Histogram hist(Points(0));
TS_ASSERT_DIFFERS(&hist.x(), &hist.binEdges().data());
TS_ASSERT_EQUALS(&hist.x(), &hist.points().data());
}
void test_sharedX() {
auto data = Mantid::Kernel::make_cow<HistogramX>(0);
Histogram hist{BinEdges(data)};
TS_ASSERT_EQUALS(hist.sharedX(), data);
}
void test_setSharedX() {
auto data1 = Mantid::Kernel::make_cow<HistogramX>(0);
auto data2 = Mantid::Kernel::make_cow<HistogramX>(0);
Histogram hist{BinEdges(data1)};
TS_ASSERT_EQUALS(hist.sharedX(), data1);
TS_ASSERT_THROWS_NOTHING(hist.setSharedX(data2));
TS_ASSERT_DIFFERS(hist.sharedX(), data1);
TS_ASSERT_EQUALS(hist.sharedX(), data2);
}
void test_setSharedX_size_mismatch() {
auto data1 = Mantid::Kernel::make_cow<HistogramX>(0);
auto tmp = {1.0, 2.0};
auto data2 = Mantid::Kernel::make_cow<HistogramX>(tmp);
Histogram hist{BinEdges(data1)};
TS_ASSERT_THROWS(hist.setSharedX(data2), const std::logic_error &);
}
void test_setSharedX_catches_misuse() {
BinEdges edges{1.0, 2.0};
Histogram hist(edges);
auto points = hist.points();
TS_ASSERT_THROWS(hist.setSharedX(points.cowData()), const std::logic_error &);
}
void test_y() {
Histogram hist(Points{1.0, 2.0, 3.0});
hist.setCounts(Counts{0.1, 0.2, 0.4});
TS_ASSERT_EQUALS(hist.y()[0], 0.1);
TS_ASSERT_EQUALS(hist.y()[1], 0.2);
TS_ASSERT_EQUALS(hist.y()[2], 0.4);
}
void test_y_references_internal_data() {
Histogram hist(Points(0));
hist.setCounts(0);
auto copy(hist);
TS_ASSERT_EQUALS(&hist.y(), ©.y());
}
void test_mutableY() {
Histogram hist(Points{1.0, 2.0, 3.0});
hist.setCounts(Counts{0.1, 0.2, 0.4});
TS_ASSERT_EQUALS(hist.mutableY()[0], 0.1);
TS_ASSERT_EQUALS(hist.mutableY()[1], 0.2);
TS_ASSERT_EQUALS(hist.mutableY()[2], 0.4);
}
void test_mutableY_triggers_copy() {
Histogram hist(Points(0));
hist.setCounts(0);
auto copy(hist);
TS_ASSERT_DIFFERS(&hist.y(), ©.mutableY());
}
void test_y_references_same_data_as_counts() {
Histogram hist(Points(0));
hist.setCounts(0);
TS_ASSERT_EQUALS(&hist.y(), &hist.counts().data());
TS_ASSERT_DIFFERS(&hist.y(), &hist.frequencies().data());
}
void test_sharedY() {
auto data = Mantid::Kernel::make_cow<HistogramY>(0);
Histogram hist{BinEdges(0)};
hist.setCounts(data);
TS_ASSERT_EQUALS(hist.sharedY(), data);
}
void test_setSharedY() {
auto data1 = Mantid::Kernel::make_cow<HistogramY>(0);
auto data2 = Mantid::Kernel::make_cow<HistogramY>(0);
Histogram hist{BinEdges(0)};
hist.setCounts(data1);
TS_ASSERT_EQUALS(hist.sharedY(), data1);
TS_ASSERT_THROWS_NOTHING(hist.setSharedY(data2));
TS_ASSERT_DIFFERS(hist.sharedY(), data1);
TS_ASSERT_EQUALS(hist.sharedY(), data2);
}
void test_setSharedY_size_mismatch() {
auto data1 = Mantid::Kernel::make_cow<HistogramY>(0);
auto data2 = Mantid::Kernel::make_cow<HistogramY>(2);
Histogram hist{BinEdges(0)};
hist.setCounts(data1);
TS_ASSERT_THROWS(hist.setSharedY(data2), const std::logic_error &);
}
void test_e() {
Histogram hist(Points{1.0, 2.0, 3.0});
hist.setCountStandardDeviations(CountStandardDeviations{0.1, 0.2, 0.4});
TS_ASSERT_EQUALS(hist.e()[0], 0.1);
TS_ASSERT_EQUALS(hist.e()[1], 0.2);
TS_ASSERT_EQUALS(hist.e()[2], 0.4);
}
void test_e_references_internal_data() {
Histogram hist(Points(0));
hist.setCountStandardDeviations(0);
auto copy(hist);
TS_ASSERT_EQUALS(&hist.e(), ©.e());
}
void test_mutableE() {
Histogram hist(Points{1.0, 2.0, 3.0});
hist.setCountStandardDeviations(CountStandardDeviations{0.1, 0.2, 0.4});
TS_ASSERT_EQUALS(hist.mutableE()[0], 0.1);
TS_ASSERT_EQUALS(hist.mutableE()[1], 0.2);
TS_ASSERT_EQUALS(hist.mutableE()[2], 0.4);
}
void test_mutableE_triggers_copy() {
Histogram hist(Points(0));
hist.setCountStandardDeviations(0);
auto copy(hist);
TS_ASSERT_DIFFERS(&hist.e(), ©.mutableE());
}
void test_e_references_same_data_as_counts() {
Histogram hist(Points(0));
hist.setCountStandardDeviations(0);
TS_ASSERT_EQUALS(&hist.e(), &hist.countStandardDeviations().data());
TS_ASSERT_DIFFERS(&hist.e(), &hist.frequencyStandardDeviations().data());
}
void test_sharedE() {
auto data = Mantid::Kernel::make_cow<HistogramE>(0);
Histogram hist{BinEdges(0)};
hist.setCountStandardDeviations(data);
TS_ASSERT_EQUALS(hist.sharedE(), data);
}
void test_setSharedE() {
auto data1 = Mantid::Kernel::make_cow<HistogramE>(0);
auto data2 = Mantid::Kernel::make_cow<HistogramE>(0);
Histogram hist{BinEdges(0)};
hist.setCountStandardDeviations(data1);
TS_ASSERT_EQUALS(hist.sharedE(), data1);
TS_ASSERT_THROWS_NOTHING(hist.setSharedE(data2));
TS_ASSERT_DIFFERS(hist.sharedE(), data1);
TS_ASSERT_EQUALS(hist.sharedE(), data2);
}
void test_setSharedE_size_mismatch() {
auto data1 = Mantid::Kernel::make_cow<HistogramE>(0);
auto data2 = Mantid::Kernel::make_cow<HistogramE>(2);
Histogram hist{BinEdges(0)};
hist.setCountStandardDeviations(data1);
TS_ASSERT_THROWS(hist.setSharedE(data2), const std::logic_error &);
}
void test_setPointStandardDeviations_point_data() {
Histogram hist(Points(2));
TS_ASSERT_THROWS_NOTHING(hist.setPointStandardDeviations(std::vector<double>{1.0, 2.0}));
TS_ASSERT_EQUALS(hist.dx().size(), 2);
TS_ASSERT_EQUALS(hist.dx()[0], 1.0);
TS_ASSERT_EQUALS(hist.dx()[1], 2.0);
}
void test_setPointStandardDeviations_point_data_size_mismatch() {
Histogram hist(Points(2));
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(0)), const std::logic_error &);
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(1)), const std::logic_error &);
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(3)), const std::logic_error &);
}
void test_setPointStandardDeviations_histogram_data() {
Histogram hist(BinEdges(3));
TS_ASSERT_THROWS_NOTHING(hist.setPointStandardDeviations(std::vector<double>{1.0, 2.0}));
TS_ASSERT_EQUALS(hist.dx().size(), 2);
TS_ASSERT_EQUALS(hist.dx()[0], 1.0);
TS_ASSERT_EQUALS(hist.dx()[1], 2.0);
}
void test_setPointStandardDeviations_histogram_data_size_mismatch() {
Histogram hist(BinEdges(3));
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(0)), const std::logic_error &);
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(1)), const std::logic_error &);
TS_ASSERT_THROWS(hist.setPointStandardDeviations(PointStandardDeviations(3)), const std::logic_error &);
}
void test_setPointStandardDeviations_can_set_null() {
Histogram hist(Points(2));
hist.setPointStandardDeviations(2);
PointStandardDeviations null;
TS_ASSERT(hist.sharedDx());
TS_ASSERT_THROWS_NOTHING(hist.setPointStandardDeviations(null));
TS_ASSERT(!hist.sharedDx());
}
void test_setPointStandardDeviations_accepts_default_construction() {
Histogram hist(Points(2));
hist.setPointStandardDeviations(2);
TS_ASSERT(hist.sharedDx());
TS_ASSERT_THROWS_NOTHING(hist.setPointStandardDeviations());
TS_ASSERT(!hist.sharedDx());
}
void test_yMode() {
Histogram hist1(Histogram::XMode::Points, Histogram::YMode::Counts);
TS_ASSERT_EQUALS(hist1.yMode(), Histogram::YMode::Counts);
Histogram hist2(Histogram::XMode::Points, Histogram::YMode::Frequencies);
TS_ASSERT_EQUALS(hist2.yMode(), Histogram::YMode::Frequencies);
}
void test_yMode_Uninitialized() {
Histogram hist(Points(1));
TS_ASSERT_EQUALS(hist.yMode(), Histogram::YMode::Uninitialized);
}
void test_yMode_initialized_by_setCounts() {
Histogram h(Points(2));
h.setCounts(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Counts);
}
void test_yMode_initialized_by_setCountStandardDeviations() {
Histogram h(Points(2));
h.setCountStandardDeviations(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Counts);
}
void test_yMode_initialized_by_setCountVariances() {
Histogram h(Points(2));
h.setCountVariances(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Counts);
}
void test_yMode_initialized_by_setFrequencies() {
Histogram h(Points(2));
h.setFrequencies(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Frequencies);
}
void test_yMode_initialized_by_setFrequencyStandardDeviations() {
Histogram h(Points(2));
h.setFrequencyStandardDeviations(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Frequencies);
}
void test_yMode_initialized_by_setFrequencyVariances() {
Histogram h(Points(2));
h.setFrequencyVariances(2);
TS_ASSERT_EQUALS(h.yMode(), Histogram::YMode::Frequencies);