pcsx-redux/third_party/EASTL/test/source/TestSpan.cpp
Nicolas 'Pixel' Noble d63f87a7f4 Adding EASTL.
2022-06-29 19:37:35 -07:00

481 lines
9.7 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Copyright (c) Electronic Arts Inc. All rights reserved.
/////////////////////////////////////////////////////////////////////////////
#include "EASTLTest.h"
#include <EASTL/array.h>
#include <EASTL/span.h>
#include <EASTL/vector.h>
void TestSpanCtor(int& nErrorCount)
{
using namespace eastl;
{
span<int> s;
VERIFY(s.empty());
VERIFY(s.size() == 0);
VERIFY(s.data() == nullptr);
}
{
span<float> s;
VERIFY(s.empty());
VERIFY(s.size() == 0);
VERIFY(s.data() == nullptr);
}
{
span<TestObject> s;
VERIFY(s.empty());
VERIFY(s.size() == 0);
VERIFY(s.data() == nullptr);
}
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(eastl::begin(arr), 5);
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(!s.empty());
}
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(eastl::begin(arr), eastl::end(arr));
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(!s.empty());
}
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(arr);
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(s.data()[2] == arr[2]);
VERIFY(!s.empty());
}
{
eastl::array<int, 5> arr = {{0, 1, 2, 3, 4}};
span<int> s(arr);
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(s.data()[2] == arr.data()[2]);
VERIFY(!s.empty());
}
{
const eastl::array<int, 5> arr = {{0, 1, 2, 3, 4}};
span<const int> s(arr);
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(s.data()[2] == arr.data()[2]);
VERIFY(!s.empty());
}
{
const eastl::array<int, 5> arr = {{0, 1, 2, 3, 4}};
const span<const int> s(arr);
VERIFY(s.data() == eastl::begin(arr));
VERIFY(s.size() == 5);
VERIFY(s.data()[2] == arr.data()[2]);
}
{
class foo {};
foo* pFoo = nullptr;
auto f = [](eastl::span<const foo*>) {};
eastl::array<const foo*, 1> foos = {{pFoo}};
f(foos);
}
}
void TestSpanSizeBytes(int& nErrorCount)
{
using namespace eastl;
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(arr);
VERIFY(s.size_bytes() == sizeof(arr));
VERIFY(s.size_bytes() == (5 * sizeof(int)));
}
{
float arr[8] = {0.f, 1.f, 2.f, 3.f, 4.f, 5.f, 6.f, 7.f};
span<float> s(arr);
VERIFY(s.size_bytes() == sizeof(arr));
VERIFY(s.size_bytes() == (8 * sizeof(float)));
}
{
int64_t arr[5] = {0, 1, 2, 3, 4};
span<int64_t> s(arr);
VERIFY(s.size_bytes() == sizeof(arr));
VERIFY(s.size_bytes() == (5 * sizeof(int64_t)));
}
}
void TestSpanElementAccess(int& nErrorCount)
{
using namespace eastl;
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(arr);
VERIFY(s.front() == 0);
VERIFY(s.back() == 4);
VERIFY(s[0] == 0);
VERIFY(s[1] == 1);
VERIFY(s[2] == 2);
VERIFY(s[3] == 3);
VERIFY(s[4] == 4);
VERIFY(s(0) == 0);
VERIFY(s(1) == 1);
VERIFY(s(2) == 2);
VERIFY(s(3) == 3);
VERIFY(s(4) == 4);
}
}
void TestSpanIterators(int& nErrorCount)
{
using namespace eastl;
int arr[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
span<int> s(arr);
// ranged-for test
{
int* pBegin = arr;
for(auto& e : arr)
{
VERIFY(e == *pBegin++);
}
}
{
auto testIteratorBegin = [&](auto p)
{
VERIFY(*p++ == 0);
VERIFY(*p++ == 1);
VERIFY(*p++ == 2);
VERIFY(*p++ == 3);
VERIFY(*p++ == 4);
VERIFY(*p++ == 5);
VERIFY(*p++ == 6);
VERIFY(*p++ == 7);
VERIFY(*p++ == 8);
VERIFY(*p++ == 9);
};
auto testIteratorEnd = [&](auto p)
{
p--; // move pointer to a valid element
VERIFY(*p-- == 9);
VERIFY(*p-- == 8);
VERIFY(*p-- == 7);
VERIFY(*p-- == 6);
VERIFY(*p-- == 5);
VERIFY(*p-- == 4);
VERIFY(*p-- == 3);
VERIFY(*p-- == 2);
VERIFY(*p-- == 1);
VERIFY(*p-- == 0);
};
testIteratorBegin(s.begin());
testIteratorBegin(s.cbegin());
testIteratorEnd(s.end());
testIteratorEnd(s.cend());
}
{
auto testReverseIteratorBegin = [&](auto p)
{
VERIFY(*p++ == 9);
VERIFY(*p++ == 8);
VERIFY(*p++ == 7);
VERIFY(*p++ == 6);
VERIFY(*p++ == 5);
VERIFY(*p++ == 4);
VERIFY(*p++ == 3);
VERIFY(*p++ == 2);
VERIFY(*p++ == 1);
VERIFY(*p++ == 0);
};
auto testReverseIteratorEnd = [&](auto p)
{
p--; // move pointer to a valid element
VERIFY(*p-- == 0);
VERIFY(*p-- == 1);
VERIFY(*p-- == 2);
VERIFY(*p-- == 3);
VERIFY(*p-- == 4);
VERIFY(*p-- == 5);
VERIFY(*p-- == 6);
VERIFY(*p-- == 7);
VERIFY(*p-- == 8);
VERIFY(*p-- == 9);
};
testReverseIteratorBegin(s.rbegin());
testReverseIteratorBegin(s.crbegin());
testReverseIteratorEnd(s.rend());
testReverseIteratorEnd(s.crend());
}
}
void TestSpanCopyAssignment(int& nErrorCount)
{
using namespace eastl;
{
int arr[5] = {0, 1, 2, 3, 4};
span<int> s(arr);
span<int> sc = s;
VERIFY(s[0] == sc[0]);
VERIFY(s[1] == sc[1]);
VERIFY(s[2] == sc[2]);
VERIFY(s[3] == sc[3]);
VERIFY(s[4] == sc[4]);
VERIFY(s(0) == sc(0));
VERIFY(s(1) == sc(1));
VERIFY(s(2) == sc(2));
VERIFY(s(3) == sc(3));
VERIFY(s(4) == sc(4));
}
}
void TestSpanContainerConversion(int& nErrorCount)
{
using namespace eastl;
{
vector<int> v = {0, 1, 2, 3, 4, 5};
span<const int> s(v);
VERIFY(s.size() == static_cast<span<int>::index_type>(eastl::size(v)));
VERIFY(s.data() == eastl::data(v));
VERIFY(s[0] == v[0]);
VERIFY(s[1] == v[1]);
VERIFY(s[2] == v[2]);
VERIFY(s[3] == v[3]);
VERIFY(s[4] == v[4]);
VERIFY(s[5] == v[5]);
}
{
const vector<int> v = {0, 1, 2, 3, 4, 5};
span<const int> s(v);
VERIFY(s.size() == static_cast<span<int>::index_type>(eastl::size(v)));
VERIFY(s.data() == eastl::data(v));
VERIFY(s[0] == v[0]);
VERIFY(s[1] == v[1]);
VERIFY(s[2] == v[2]);
VERIFY(s[3] == v[3]);
VERIFY(s[4] == v[4]);
VERIFY(s[5] == v[5]);
}
{
vector<int> v = {0, 1, 2, 3, 4, 5};
span<const int, 6> s1(v);
span<const int> s2(s1);
VERIFY(s2.size() == (span<const int>::index_type)v.size());
VERIFY(s2[0] == v[0]);
VERIFY(s2[1] == v[1]);
VERIFY(s1.data() == v.data());
VERIFY(s1.data() == s2.data());
}
{ // user reported regression for calling non-const span overload with a vector.
auto f1 = [](span<int> s) { return s.size(); };
auto f2 = [](span<const int> s) { return s.size(); };
{
vector<int> v = {0, 1, 2, 3, 4, 5};
VERIFY(f1(v) == v.size());
VERIFY(f2(v) == v.size());
}
{
int a[] = {0, 1, 2, 3, 4, 5};
VERIFY(f1(a) == EAArrayCount(a));
VERIFY(f2(a) == EAArrayCount(a));
}
}
}
void TestSpanComparison(int& nErrorCount)
{
using namespace eastl;
int arr1[5] = {0, 1, 2, 3, 4};
int arr2[8] = {0, 1, 2, 3, 4, 5, 6, 7};
{
span<int> s1 = arr1;
span<int> s2 = arr2;
span<int> s3 = arr2;
VERIFY(s2 == s3);
VERIFY(s1 != s2);
VERIFY(s1 < s2);
VERIFY(s1 <= s2);
VERIFY(s2 > s1);
VERIFY(s2 >= s1);
}
}
void TestSpanSubViews(int& nErrorCount)
{
using namespace eastl;
int arr1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
{
span<int> s = arr1;
auto first_span = s.first<4>();
VERIFY(first_span.size() == 4);
VERIFY(first_span[0] == 0);
VERIFY(first_span[1] == 1);
VERIFY(first_span[2] == 2);
VERIFY(first_span[3] == 3);
}
{
span<int> s = arr1;
auto first_span = s.first(4);
VERIFY(first_span.size() == 4);
VERIFY(first_span[0] == 0);
VERIFY(first_span[1] == 1);
VERIFY(first_span[2] == 2);
VERIFY(first_span[3] == 3);
}
{
span<int> s = arr1;
auto first_span = s.last<4>();
VERIFY(first_span.size() == 4);
VERIFY(first_span[0] == 6);
VERIFY(first_span[1] == 7);
VERIFY(first_span[2] == 8);
VERIFY(first_span[3] == 9);
}
{
span<int> s = arr1;
auto first_span = s.last(4);
VERIFY(first_span.size() == 4);
VERIFY(first_span[0] == 6);
VERIFY(first_span[1] == 7);
VERIFY(first_span[2] == 8);
VERIFY(first_span[3] == 9);
}
{ // empty range
span<int, 0> s{};
auto fixed_span = s.subspan<0, 0>();
VERIFY(fixed_span.empty());
fixed_span = s.first<0>();
VERIFY(fixed_span.empty());
fixed_span = s.last<0>();
VERIFY(fixed_span.empty());
span<int> dynamic_span;
VERIFY(dynamic_span.empty());
dynamic_span = s.first(0);
VERIFY(dynamic_span.empty());
dynamic_span = s.last(0);
VERIFY(dynamic_span.empty());
}
{ // subspan: full range
span<int, 10> s = arr1;
auto fixed_span = s.subspan<0, 10>();
VERIFY(fixed_span.size() == 10);
VERIFY(fixed_span[0] == 0);
VERIFY(fixed_span[1] == 1);
VERIFY(fixed_span[8] == 8);
VERIFY(fixed_span[9] == 9);
auto dynamic_span = s.subspan(0, s.size());
VERIFY(dynamic_span.size() == 10);
VERIFY(dynamic_span[0] == 0);
VERIFY(dynamic_span[1] == 1);
VERIFY(dynamic_span[8] == 8);
VERIFY(dynamic_span[9] == 9);
}
{ // subspan: subrange
span<int, 10> s = arr1;
auto fixed_span = s.subspan<3, 4>();
VERIFY(fixed_span.size() == 4);
VERIFY(fixed_span[0] == 3);
VERIFY(fixed_span[1] == 4);
VERIFY(fixed_span[2] == 5);
VERIFY(fixed_span[3] == 6);
auto dynamic_span = s.subspan(3, 4);
VERIFY(dynamic_span.size() == 4);
VERIFY(dynamic_span[0] == 3);
VERIFY(dynamic_span[1] == 4);
VERIFY(dynamic_span[2] == 5);
VERIFY(dynamic_span[3] == 6);
}
{ // subspan: default count
span<int, 10> s = arr1;
auto fixed_span = s.subspan<3>();
VERIFY(fixed_span.size() == 7);
VERIFY(fixed_span[0] == 3);
VERIFY(fixed_span[1] == 4);
VERIFY(fixed_span[5] == 8);
VERIFY(fixed_span[6] == 9);
auto dynamic_span = s.subspan(3);
VERIFY(dynamic_span.size() == 7);
VERIFY(dynamic_span[0] == 3);
VERIFY(dynamic_span[1] == 4);
VERIFY(dynamic_span[5] == 8);
VERIFY(dynamic_span[6] == 9);
}
}
int TestSpan()
{
int nErrorCount = 0;
TestSpanCtor(nErrorCount);
TestSpanSizeBytes(nErrorCount);
TestSpanElementAccess(nErrorCount);
TestSpanIterators(nErrorCount);
TestSpanCopyAssignment(nErrorCount);
TestSpanContainerConversion(nErrorCount);
TestSpanComparison(nErrorCount);
TestSpanSubViews(nErrorCount);
return nErrorCount;
}