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VectorOfTest.h
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VectorOfTest.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/HistogramX.h"
#include "MantidHistogramData/Iterable.h"
#include "MantidHistogramData/VectorOf.h"
#include "MantidKernel/make_cow.h"
using Mantid::HistogramData::detail::Iterable;
using Mantid::HistogramData::detail::VectorOf;
using Mantid::Kernel::cow_ptr;
using Mantid::Kernel::make_cow;
class VectorOfTester : public VectorOf<VectorOfTester, std::vector<double>>, public Iterable<VectorOfTester> {
public:
using VectorOf<VectorOfTester, std::vector<double>>::VectorOf;
using VectorOf<VectorOfTester, std::vector<double>>::operator=;
VectorOfTester() = default;
VectorOfTester(const VectorOfTester &) = default;
VectorOfTester(VectorOfTester &&) = default;
VectorOfTester &operator=(const VectorOfTester &) & = default;
VectorOfTester &operator=(VectorOfTester &&) & = default;
};
class VectorOfTest : 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 VectorOfTest *createSuite() { return new VectorOfTest(); }
static void destroySuite(VectorOfTest *suite) { delete suite; }
void test_empty_constructor() {
const VectorOfTester values{};
TS_ASSERT(!values);
}
void test_length_zero_constructor() {
const VectorOfTester values(0);
TS_ASSERT_EQUALS(values.size(), 0);
}
void test_count_value_constructor() {
const VectorOfTester values(2, 0.1);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
}
void test_length_zero_value_constructor() {
const VectorOfTester values(0, 0.1);
TS_ASSERT_EQUALS(values.size(), 0);
}
void test_count_constructor() {
const VectorOfTester values(2);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.0);
TS_ASSERT_EQUALS(values[1], 0.0);
}
void test_initializer_list_constructor() {
const VectorOfTester values{0.1, 0.2, 0.3};
TS_ASSERT_EQUALS(values.size(), 3);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.2);
TS_ASSERT_EQUALS(values[2], 0.3);
}
void test_empty_initializer_list_constructor() {
std::initializer_list<double> empty_list;
const VectorOfTester values(empty_list);
// Note difference to default constructor: No elements, but allocated.
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 0);
}
void test_copy_constructor() {
const VectorOfTester src(2, 0.1);
const VectorOfTester dest(src);
TS_ASSERT_EQUALS(dest[0], 0.1);
TS_ASSERT_EQUALS(dest[1], 0.1);
}
void test_copy_from_null_constructor() {
const VectorOfTester src{};
const VectorOfTester dest(src);
TS_ASSERT(!dest);
}
void test_move_constructor() {
VectorOfTester src(2, 0.1);
TS_ASSERT_EQUALS(src.size(), 2);
TS_ASSERT(src);
const VectorOfTester dest(std::move(src));
TS_ASSERT_EQUALS(dest[0], 0.1);
TS_ASSERT_EQUALS(dest[1], 0.1);
}
void test_move_from_null_constructor() {
VectorOfTester src{};
const VectorOfTester dest(std::move(src));
TS_ASSERT(!dest);
}
void test_interator_assignment() {
std::vector<double> src{0.1, 3.5, 1.0, 2.4};
VectorOfTester dest(1);
dest.assign(src.cbegin(), src.cend());
TS_ASSERT_EQUALS(dest.size(), 4);
TS_ASSERT_EQUALS(dest[0], src[0]);
TS_ASSERT_EQUALS(dest[1], src[1]);
TS_ASSERT_EQUALS(dest[2], src[2]);
TS_ASSERT_EQUALS(dest[3], src[3]);
}
void test_count_value_assignment() {
VectorOfTester dest(1);
dest.assign(3, 9.8);
TS_ASSERT_EQUALS(dest.size(), 3);
TS_ASSERT_EQUALS(dest[0], 9.8);
TS_ASSERT_EQUALS(dest[1], 9.8);
TS_ASSERT_EQUALS(dest[2], 9.8);
}
void test_copy_assignment() {
const VectorOfTester src(2, 0.1);
VectorOfTester dest(1);
TS_ASSERT_EQUALS(dest.size(), 1);
TS_ASSERT_EQUALS(dest[0], 0.0);
dest = src;
TS_ASSERT_EQUALS(dest.size(), 2);
TS_ASSERT_EQUALS(dest[0], 0.1);
TS_ASSERT_EQUALS(dest[1], 0.1);
}
void test_copy_assignment_from_null() {
const VectorOfTester src{};
VectorOfTester dest(1);
dest = src;
TS_ASSERT(!dest);
}
void test_move_assignment() {
VectorOfTester src(2, 0.1);
VectorOfTester dest(1);
TS_ASSERT_EQUALS(dest.size(), 1);
TS_ASSERT_EQUALS(dest[0], 0.0);
TS_ASSERT(src);
dest = std::move(src);
TS_ASSERT_EQUALS(dest[0], 0.1);
TS_ASSERT_EQUALS(dest[1], 0.1);
}
void test_move_assignment_from_null() {
VectorOfTester src{};
VectorOfTester dest(1);
dest = std::move(src);
TS_ASSERT(!dest);
}
void test_initializer_list_assignment() {
VectorOfTester values(2, 0.1);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
values = {0.1, 0.2, 0.3};
TS_ASSERT_EQUALS(values.size(), 3);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.2);
TS_ASSERT_EQUALS(values[2], 0.3);
}
void test_value_assignment() {
VectorOfTester dest(3);
dest = 9.8;
TS_ASSERT_EQUALS(dest.size(), 3);
TS_ASSERT_EQUALS(dest[0], 9.8);
TS_ASSERT_EQUALS(dest[1], 9.8);
TS_ASSERT_EQUALS(dest[2], 9.8);
}
void test_empty_initializer_list_assignment() {
std::initializer_list<double> empty_list;
VectorOfTester values(1);
values = empty_list;
TS_ASSERT_EQUALS(values.size(), 0);
}
void test_cow_ptr_constructor() {
auto cow = make_cow<std::vector<double>>(2, 0.1);
VectorOfTester values(cow);
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), cow.get());
}
void test_null_cow_ptr_constructor() {
cow_ptr<std::vector<double>> cow(nullptr);
VectorOfTester values(cow);
TS_ASSERT(!values);
}
void test_shared_ptr_constructor() {
auto shared = std::make_shared<std::vector<double>>(2, 0.1);
VectorOfTester values(shared);
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), shared.get());
}
void test_null_shared_ptr_constructor() {
std::shared_ptr<std::vector<double>> shared;
VectorOfTester values(shared);
TS_ASSERT(!values);
}
void test_vector_constructor() {
std::vector<double> vector(2, 0.1);
VectorOfTester values(vector);
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
}
void test_vector_move_constructor() {
std::vector<double> vector(2, 0.1);
VectorOfTester values(std::move(vector));
TS_ASSERT_EQUALS(vector.size(), 0);
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
}
void test_cow_ptr_assignment() {
auto cow = make_cow<std::vector<double>>(2, 0.1);
VectorOfTester values(1);
values = cow;
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), cow.get());
}
void test_null_cow_ptr_assignment() {
cow_ptr<std::vector<double>> cow(nullptr);
VectorOfTester values(1);
values = cow;
TS_ASSERT(!values);
}
void test_cow_ptr_self_assignment() {
VectorOfTester values(2, 0.1);
const auto *raw_data = &values.data();
auto cow = values.cowData();
values = cow;
TS_ASSERT(values);
TS_ASSERT_EQUALS(cow.use_count(), 2);
TS_ASSERT_EQUALS(&values.data(), raw_data);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), cow.get());
}
void test_shared_ptr_assignment() {
auto shared = std::make_shared<std::vector<double>>(2, 0.1);
VectorOfTester values(1);
values = shared;
TS_ASSERT(values);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), shared.get());
}
void test_null_shared_ptr_assignment() {
std::shared_ptr<std::vector<double>> shared;
VectorOfTester values(1);
values = shared;
TS_ASSERT(!values);
}
void test_shared_ptr_self_assignment() {
auto shared = std::make_shared<std::vector<double>>(2, 0.1);
VectorOfTester values(1);
values = shared;
TS_ASSERT_THROWS_NOTHING(values = shared);
TS_ASSERT(values);
TS_ASSERT_EQUALS(shared.use_count(), 2);
TS_ASSERT_EQUALS(values.size(), 2);
TS_ASSERT_EQUALS(values[0], 0.1);
TS_ASSERT_EQUALS(values[1], 0.1);
TS_ASSERT_EQUALS(&values.data(), shared.get());
}
void test_vector_assignment() {
const std::vector<double> raw{0.1, 0.2, 0.3};
VectorOfTester values(0);
TS_ASSERT_THROWS_NOTHING(values = raw);
TS_ASSERT(values);
TS_ASSERT_DIFFERS(&(values.data()[0]), &raw[0]);
TS_ASSERT_EQUALS(values.size(), 3);
TS_ASSERT_EQUALS(values[0], 0.1);
}
void test_vector_self_assignment() {
VectorOfTester values(2, 0.1);
// Reference to internal data
auto &vector = values.data();
values = vector;
TS_ASSERT(values);
// Reference still valid after self assignment
TS_ASSERT_EQUALS(&(values.data()), &vector);
}
void test_vector_assignment_to_null_vector() {
const std::vector<double> raw{0.1, 0.2, 0.3};
VectorOfTester values;
TS_ASSERT_THROWS_NOTHING(values = raw);
TS_ASSERT(values);
TS_ASSERT_DIFFERS(&(values.data()[0]), &raw[0]);
TS_ASSERT_EQUALS(values.size(), 3);
TS_ASSERT_EQUALS(values[0], 0.1);
}
void test_vector_move_assignment() {
std::vector<double> raw{0.1, 0.2, 0.3};
auto old_ptr = &raw[0];
VectorOfTester values(0);
TS_ASSERT_THROWS_NOTHING(values = std::move(raw));
TS_ASSERT_EQUALS(raw.size(), 0);
TS_ASSERT(values);
TS_ASSERT_EQUALS(&values[0], old_ptr);
TS_ASSERT_EQUALS(values.size(), 3);
TS_ASSERT_EQUALS(values[0], 0.1);
}
void test_operator_bool() {
VectorOfTester null;
TS_ASSERT(!null);
VectorOfTester not_null(0);
TS_ASSERT(not_null);
}
void test_empty() {
TS_ASSERT_EQUALS(VectorOfTester(0).empty(), true);
TS_ASSERT_EQUALS(VectorOfTester(1).empty(), false);
}
void test_size() {
const VectorOfTester values(42);
TS_ASSERT_EQUALS(values.size(), 42);
}
void test_data_const() {
const VectorOfTester values(2, 0.1);
auto copy(values);
TS_ASSERT_EQUALS(©.data(), &values.data());
const auto &data = values.data();
TS_ASSERT_EQUALS(©.data(), &values.data());
TS_ASSERT_EQUALS(data.size(), 2);
}
void test_const_data() {
VectorOfTester values(2, 0.1);
auto copy(values);
TS_ASSERT_EQUALS(©.data(), &values.data());
const auto &data = values.data();
TS_ASSERT_EQUALS(©.data(), &values.data());
TS_ASSERT_EQUALS(data.size(), 2);
}
void test_mutable_data() {
VectorOfTester values(2, 0.1);
auto copy(values);
TS_ASSERT_EQUALS(©.data(), &values.data());
auto &data = values.mutableData();
TS_ASSERT_DIFFERS(©.data(), &values.data());
TS_ASSERT_EQUALS(data.size(), 2);
}
void test_cow_data() {
VectorOfTester values(2, 0.1);
auto cow = values.cowData();
TS_ASSERT_EQUALS(cow.get(), &values.data());
TS_ASSERT_EQUALS(cow.use_count(), 2);
auto &data = values.mutableData();
TS_ASSERT_DIFFERS(cow.get(), &values.data());
TS_ASSERT_EQUALS(cow.use_count(), 1);
TS_ASSERT_EQUALS(data.size(), 2);
}
};