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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* span.cpp - Span tests
*/
/*
* Include first to ensure the header is self-contained, as there's no span.cpp
* in libcamera.
*/
#include <libcamera/base/span.h>
#include <array>
#include <iostream>
#include <vector>
#include "test.h"
using namespace std;
using namespace libcamera;
class SpanTest : public Test
{
protected:
int run()
{
int i[4]{ 1, 2, 3, 4 };
std::array<int, 4> a{ 1, 2, 3, 4 };
const std::array<int, 4> ca{ 1, 2, 3, 4 };
std::vector<int> v{ 1, 2, 3, 4 };
const std::vector<int> cv{ 1, 2, 3, 4 };
/*
* Compile-test construction and usage of spans with static
* extent. Commented-out tests are expected not to compile, or
* to generate undefined behaviour.
*/
Span<int, 0>{};
/* Span<int, 4>{}; */
Span<int, 4>{ &i[0], 4 };
Span<int, 4>{ &i[0], &i[3] };
Span<int, 4>{ i };
/* Span<float, 4>{ i }; */
/* Span<int, 2>{ i }; */
Span<int, 4>{ a };
Span<const int, 4>{ a };
/* Span<float, 4>{ a }; */
/* Span<int, 2>{ a }; */
Span<const int, 4>{ ca };
/* Span<const int, 2>{ ca }; */
/* Span<const float, 4>{ ca }; */
/* Span<int, 4>{ ca }; */
Span<int, 4>{ v };
Span<const int, 4>{ v };
/* Span<float, 4>{ v }; */
Span<const int, 4>{ v };
/* Span<int, 4>{ v }; */
/* Span<const float, 4>{ v }; */
Span<int, 4> staticSpan{ i };
Span<int, 4>{ staticSpan };
Span<const int, 4>{ staticSpan };
/* Span<const int, 2>{ staticSpan }; */
staticSpan = Span<int, 4>{ v };
if (*staticSpan.begin() != 1) {
std::cout << "Span<static_extent>::begin() failed" << std::endl;
return TestFail;
}
if (*staticSpan.cbegin() != 1) {
std::cout << "Span<static_extent>::cbegin() failed" << std::endl;
return TestFail;
}
staticSpan.end();
staticSpan.cend();
if (*staticSpan.rbegin() != 4) {
std::cout << "Span<static_extent>::rbegin() failed" << std::endl;
return TestFail;
}
if (*staticSpan.crbegin() != 4) {
std::cout << "Span<static_extent>::crbegin() failed" << std::endl;
return TestFail;
}
staticSpan.rend();
staticSpan.crend();
staticSpan.front();
staticSpan.back();
staticSpan[0];
staticSpan.data();
staticSpan.size();
staticSpan.size_bytes();
staticSpan.empty();
staticSpan.first<2>();
staticSpan.first(2);
/* staticSpan.first<6>(); */
/* staticSpan.first(6); */
staticSpan.last<2>();
staticSpan.last(2);
/* staticSpan.last<6>(); */
/* staticSpan.last(6); */
staticSpan.subspan<1>();
staticSpan.subspan<1, 2>();
staticSpan.subspan(1);
staticSpan.subspan(1, 2);
/* staticSpan.subspan(2, 4); */
/*
* Compile-test construction and usage of spans with dynamic
* extent. Commented-out tests are expected not to compile, or
* to generate undefined behaviour.
*/
Span<int>{};
Span<int>{ &i[0], 4 };
Span<int>{ &i[0], &i[3] };
Span<int>{ i };
/* Span<float>{ i }; */
Span<int>{ a };
Span<const int>{ a };
/* Span<float>{ a }; */
Span<const int>{ ca };
/* Span<const float>{ca}; */
/* Span<int>{ca}; */
Span<int>{ v };
Span<const int>{ v };
/* Span<float>{ v }; */
Span<const int>{ v };
/* Span<int>{ v }; */
/* Span<const float>{ v }; */
Span<int> dynamicSpan{ i };
Span<int>{ dynamicSpan };
Span<const int>{ dynamicSpan };
dynamicSpan = Span<int>{ a };
if (*dynamicSpan.begin() != 1) {
std::cout << "Span<dynamic_extent>::begin() failed" << std::endl;
return TestFail;
}
if (*dynamicSpan.cbegin() != 1) {
std::cout << "Span<dynamic_extent>::cbegin() failed" << std::endl;
return TestFail;
}
dynamicSpan.end();
dynamicSpan.cend();
if (*dynamicSpan.rbegin() != 4) {
std::cout << "Span<dynamic_extent>::rbegin() failed" << std::endl;
return TestFail;
}
if (*dynamicSpan.crbegin() != 4) {
std::cout << "Span<dynamic_extent>::crbegin() failed" << std::endl;
return TestFail;
}
dynamicSpan.rend();
dynamicSpan.crend();
dynamicSpan.front();
dynamicSpan.back();
dynamicSpan[0];
dynamicSpan.data();
dynamicSpan.size();
dynamicSpan.size_bytes();
dynamicSpan.empty();
dynamicSpan.first<2>();
dynamicSpan.first(2);
/* dynamicSpan.first<6>(); */
/* dynamicSpan.first(6); */
dynamicSpan.last<2>();
dynamicSpan.last(2);
/* dynamicSpan.last<6>(); */
/* dynamicSpan.last(6); */
dynamicSpan.subspan<1>();
dynamicSpan.subspan<1, 2>();
dynamicSpan.subspan(1);
dynamicSpan.subspan(1, 2);
/* dynamicSpan.subspan(2, 4); */
return TestPass;
}
};
TEST_REGISTER(SpanTest)
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