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#include <wil/stl.h>
#include "common.h"
#ifndef WIL_ENABLE_EXCEPTIONS
#error STL tests require exceptions
#endif
struct dummy
{
char value;
};
// Specialize std::allocator<> so that we don't actually allocate/deallocate memory
dummy g_memoryBuffer[256];
namespace std
{
template <>
struct allocator<dummy>
{
using value_type = dummy;
using size_type = std::size_t;
using difference_type = std::ptrdiff_t;
dummy* allocate(std::size_t count)
{
REQUIRE(count <= std::size(g_memoryBuffer));
return g_memoryBuffer;
}
void deallocate(dummy* ptr, std::size_t count)
{
for (std::size_t i = 0; i < count; ++i)
{
REQUIRE(ptr[i].value == 0);
}
}
};
}
TEST_CASE("StlTests::TestSecureAllocator", "[stl][secure_allocator]")
{
{
wil::secure_vector<dummy> sensitiveBytes(32, dummy{ 'a' });
}
}
#if __WI_LIBCPP_STD_VER >= 17
struct CustomNoncopyableString
{
CustomNoncopyableString() = default;
CustomNoncopyableString(const CustomNoncopyableString&) = delete;
void operator=(const CustomNoncopyableString&) = delete;
constexpr operator PCSTR() const { return "hello"; }
constexpr operator PCWSTR() const { return L"w-hello"; }
};
TEST_CASE("StlTests::TestZStringView", "[stl][zstring_view]")
{
// Test empty cases
REQUIRE(wil::zstring_view{}.length() == (size_t)0u);
REQUIRE(wil::zstring_view{}.data() == nullptr);
REQUIRE(wil::zstring_view{}.c_str() == nullptr);
// Test empty string cases
REQUIRE(wil::zstring_view{""}[0] == '\0');
REQUIRE(wil::zstring_view{""}.c_str()[0] == '\0');
REQUIRE(wil::zstring_view{""}.length() == 0);
// Test different constructor equality
constexpr wil::zstring_view fromLiteral = "abc";
REQUIRE(fromLiteral.length() == strlen("abc"));
std::string stlString = "abc";
wil::zstring_view fromString(stlString);
wil::zstring_view fromPtr(stlString.data());
static constexpr char charArray[] = "abc";
constexpr wil::zstring_view fromArray(charArray);
static constexpr char extendedCharArray[] = "abc\0\0\0\0\0";
constexpr wil::zstring_view fromExtendedArray(extendedCharArray);
wil::zstring_view copy = fromLiteral;
REQUIRE(fromLiteral == stlString);
REQUIRE(fromLiteral == fromString);
REQUIRE(fromLiteral == fromArray);
REQUIRE(fromLiteral == fromExtendedArray);
REQUIRE(fromLiteral == copy);
// Test decay to std::string_view
std::string_view sv = fromLiteral;
REQUIRE(sv == fromLiteral);
// Test operator[]
REQUIRE(fromLiteral[0] == 'a');
REQUIRE(fromLiteral[1] == 'b');
REQUIRE(fromLiteral[2] == 'c');
REQUIRE(fromLiteral[3] == '\0');
// Test constructing with no NULL in range
static constexpr char badCharArray[2][3] = {{'a', 'b', 'c' }, {'a', 'b', 'c' }};
REQUIRE_CRASH((wil::zstring_view{ &badCharArray[0][0], _countof(badCharArray[0]) }));
REQUIRE_CRASH((wil::zstring_view{ badCharArray[0] }));
// Test constructing with a NULL one character past the valid range, guarding against off-by-one errors
// Overloads taking an explicit length trust the user that they ensure valid memory follows the buffer
static constexpr char badCharArrayOffByOne[2][3] = {{'a', 'b', 'c' }, {}};
const wil::zstring_view fromTerminatedCharArray(&badCharArrayOffByOne[0][0], _countof(badCharArrayOffByOne[0]));
REQUIRE(fromLiteral == fromTerminatedCharArray);
REQUIRE_CRASH((wil::zstring_view{ badCharArrayOffByOne[0] }));
// Test constructing from custom string type
CustomNoncopyableString customString;
wil::zstring_view fromCustomString(customString);
REQUIRE(fromCustomString == (PCSTR)customString);
}
TEST_CASE("StlTests::TestZWStringView", "[stl][zstring_view]")
{
// Test empty cases
REQUIRE(wil::zwstring_view{}.length() == (size_t)0u);
REQUIRE(wil::zwstring_view{}.data() == nullptr);
REQUIRE(wil::zwstring_view{}.c_str() == nullptr);
// Test empty string cases
REQUIRE(wil::zwstring_view{L""}[0] == L'\0');
REQUIRE(wil::zwstring_view{L""}.c_str()[0] == L'\0');
REQUIRE(wil::zwstring_view{L""}.length() == 0);
// Test different constructor equality
constexpr wil::zwstring_view fromLiteral = L"abc";
REQUIRE(fromLiteral.length() == wcslen(L"abc"));
std::wstring stlString = L"abc";
wil::zwstring_view fromString(stlString);
wil::zwstring_view fromPtr(stlString.data());
static constexpr wchar_t charArray[] = L"abc";
constexpr wil::zwstring_view fromArray(charArray);
static constexpr wchar_t extendedCharArray[] = L"abc\0\0\0\0\0";
constexpr wil::zwstring_view fromExtendedArray(extendedCharArray);
wil::zwstring_view copy = fromLiteral;
REQUIRE(fromLiteral == stlString);
REQUIRE(fromLiteral == fromString);
REQUIRE(fromLiteral == fromArray);
REQUIRE(fromLiteral == fromExtendedArray);
REQUIRE(fromLiteral == copy);
// Test decay to std::wstring_view
std::wstring_view sv = fromLiteral;
REQUIRE(sv == fromLiteral);
// Test operator[]
REQUIRE(fromLiteral[0] == L'a');
REQUIRE(fromLiteral[1] == L'b');
REQUIRE(fromLiteral[2] == L'c');
REQUIRE(fromLiteral[3] == L'\0');
// Test constructing with no NULL in range
static constexpr wchar_t badCharArray[2][3] = {{ L'a', L'b', L'c' }, { L'a', L'b', L'c' } };
REQUIRE_CRASH((wil::zwstring_view{ &badCharArray[0][0], _countof(badCharArray[0]) }));
REQUIRE_CRASH((wil::zwstring_view{ badCharArray[0] }));
// Test constructing with a NULL one character past the valid range, guarding against off-by-one errors
// Overloads taking an explicit length trust the user that they ensure valid memory follows the buffer
static constexpr wchar_t badCharArrayOffByOne[2][3] = {{ L'a', L'b', L'c' }, {}};
const wil::zwstring_view fromTerminatedCharArray(&badCharArrayOffByOne[0][0], _countof(badCharArrayOffByOne[0]));
REQUIRE(fromLiteral == fromTerminatedCharArray);
REQUIRE_CRASH((wil::zwstring_view{ badCharArrayOffByOne[0] }));
// Test constructing from custom string type
CustomNoncopyableString customString;
wil::zwstring_view fromCustomString(customString);
REQUIRE(fromCustomString == (PCWSTR)customString);
}
#endif
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