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// https://github.com/vinniefalco/LuaBridge
//
// Copyright 2019, Dmitry Tarakanov
// SPDX-License-Identifier: MIT
#include "TestBase.h"
#include "LuaBridge/UnorderedMap.h"
#include <unordered_map>
struct UnorderedMapTests : TestBase
{
};
namespace {
struct Data
{
/* explicit */ Data(int i) : i(i) {}
int i;
};
} // namespace
namespace std {
template <>
struct hash <Data>
{
size_t operator() (const Data& value) const noexcept
{
return 0; // Don't care about hash collisions
}
};
template <>
struct hash <::luabridge::LuaRef>
{
size_t operator() (const ::luabridge::LuaRef& value) const
{
return 0; // Don't care about hash collisions
}
};
} // namespace std
TEST_F (UnorderedMapTests, LuaRef)
{
{
runLua ("result = {[false] = true, a = 'abc', [1] = 5, [3.14] = -1.1}");
using Map = std::unordered_map <luabridge::LuaRef, luabridge::LuaRef>;
Map expected {
{luabridge::LuaRef (L, false), luabridge::LuaRef (L, true)},
{luabridge::LuaRef (L, 'a'), luabridge::LuaRef (L, "abc")},
{luabridge::LuaRef (L, 1), luabridge::LuaRef (L, 5)},
{luabridge::LuaRef (L, 3.14), luabridge::LuaRef (L, -1.1)},
};
Map actual = result ();
ASSERT_EQ (expected, actual);
ASSERT_EQ (expected, result <Map> ());
}
{
runLua ("result = {'a', 'b', 'c'}");
using Int2Char = std::unordered_map <int, char>;
Int2Char expected {{1, 'a'}, {2, 'b'}, {3, 'c'}};
Int2Char actual = result ();
ASSERT_EQ (expected, actual);
ASSERT_EQ (expected, result <Int2Char> ());
}
}
TEST_F (UnorderedMapTests, PassToFunction)
{
runLua (
"function foo (map) "
" result = map "
"end");
auto foo = luabridge::getGlobal (L, "foo");
using Int2Bool = std::unordered_map <int, bool>;
resetResult ();
Int2Bool lvalue {{10, false}, {20, true}, {30, true}};
foo (lvalue);
ASSERT_TRUE (result ().isTable ());
ASSERT_EQ (lvalue, result <Int2Bool> ());
resetResult ();
const Int2Bool constLvalue = lvalue;
foo (constLvalue);
ASSERT_TRUE (result ().isTable ());
ASSERT_EQ (constLvalue, result <Int2Bool> ());
}
namespace {
bool operator== (const Data& lhs, const Data& rhs)
{
return lhs.i == rhs.i;
}
bool operator< (const Data& lhs, const Data& rhs)
{
return lhs.i < rhs.i;
}
std::ostream& operator<< (std::ostream& lhs, const Data& rhs)
{
lhs << "{" << rhs.i << "}";
return lhs;
}
std::unordered_map <Data, Data> processValues (const std::unordered_map <Data, Data>& data)
{
return data;
}
std::unordered_map <Data, Data> processPointers (const std::unordered_map <Data, const Data*>& data)
{
std::unordered_map <Data, Data> result;
for (const auto& item : data)
{
result.emplace (item.first, *item.second);
}
return result;
}
} // namespace
TEST_F (UnorderedMapTests, PassFromLua)
{
luabridge::getGlobalNamespace (L)
.beginClass <Data> ("Data")
.addConstructor <void (*) (int)> ()
.endClass ()
.addFunction ("processValues", &processValues)
.addFunction ("processPointers", &processPointers);
{
resetResult ();
runLua ("result = processValues ({[Data (-1)] = Data (2)})");
std::unordered_map <Data, Data> expected {{Data (-1), Data (2)}};
const auto actual = result <std::unordered_map <Data, Data>> ();
ASSERT_EQ (expected, actual);
}
{
resetResult ();
runLua ("result = processValues ({[Data (3)] = Data (-4)})");
std::unordered_map <Data, Data> expected {{Data (3), Data (-4)}};
const auto actual = result <std::unordered_map <Data, Data>> ();
ASSERT_EQ (expected, actual);
}
}
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