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proxy_regression_tests.cpp
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70 lines (60 loc) · 2.56 KB
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
#include <gtest/gtest.h>
#include <proxy/proxy.h>
#include <vector>
namespace proxy_regression_tests_details {
template <class It, class F>
bool operator==(const It& it, const pro::proxy<F>& rhs) noexcept
requires(!std::is_same_v<It, pro::proxy<F>>)
{
return typeid(It) == proxy_typeid(rhs) && it == proxy_cast<const It&>(rhs);
}
template <class F>
using SelfComparisonOverload = bool(const pro::proxy<F>& rhs) const noexcept;
template <class T>
struct Iterator
: pro::facade_builder //
::support<pro::skills::direct_rtti> //
::restrict_layout<4 * sizeof(void*)> //
::add_direct_convention<pro::operator_dispatch<"++">, void() noexcept> //
::add_direct_convention<
pro::operator_dispatch<"!=">,
pro::facade_aware_overload_t<SelfComparisonOverload>> //
::add_convention<pro::implicit_conversion_dispatch,
T&() const noexcept> //
::build {};
PRO_DEF_MEM_DISPATCH(MemBegin, begin);
PRO_DEF_MEM_DISPATCH(MemEnd, end);
template <class T>
struct Range : pro::facade_builder //
::add_convention<MemBegin, pro::proxy<Iterator<T>>()> //
::template add_convention<MemEnd, pro::proxy<Iterator<T>>()> //
::build {};
} // namespace proxy_regression_tests_details
namespace details = proxy_regression_tests_details;
// https://github.com/microsoft/proxy/issues/213
TEST(ProxyRegressionTests, TestUnexpectedCompilerWarning) {
struct MyTrivialFacade
: pro::facade_builder //
::add_convention<pro::operator_dispatch<"()">, void(), void() const> //
::support_copy<pro::constraint_level::trivial> //
::support_relocation<pro::constraint_level::trivial> //
::support_destruction<pro::constraint_level::trivial> //
::build {};
int side_effect = 0;
pro::proxy<MyTrivialFacade> p =
pro::make_proxy<MyTrivialFacade>([&] { side_effect = 1; });
(*p)();
EXPECT_EQ(side_effect, 1);
}
// https://github.com/microsoft/proxy/issues/254
TEST(ProxyRegressionTests, TestProxiableSelfDependency) {
std::vector<int> original{1, 2, 123};
std::vector<int> expected;
pro::proxy<details::Range<int>> p = &original;
for (int i : *p) {
expected.push_back(i);
}
EXPECT_EQ(expected, original);
}