luau/tests/TypeInfer.negations.test.cpp
vegorov-rbx be52bd91e4
Sync to upstream/release/558 (#796)
* Fixed garbage data in module scopes when type graph is not retained
* LOP_MOVE with the same source and target registers is no longer
generated (Fixes https://github.com/Roblox/luau/issues/793)
2023-01-06 13:14:35 -08:00

54 lines
1.0 KiB
C++

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "Fixture.h"
#include "doctest.h"
#include "Luau/Common.h"
#include "ScopedFlags.h"
using namespace Luau;
namespace
{
struct NegationFixture : Fixture
{
TypeArena arena;
ScopedFastFlag sff[1]{
{"LuauSubtypeNormalizer", true},
};
NegationFixture()
{
registerHiddenTypes(&frontend);
}
};
} // namespace
TEST_SUITE_BEGIN("Negations");
TEST_CASE_FIXTURE(NegationFixture, "negated_string_is_a_subtype_of_string")
{
CheckResult result = check(R"(
function foo(arg: string) end
local a: string & Not<"Hello">
foo(a)
)");
LUAU_REQUIRE_NO_ERRORS(result);
}
TEST_CASE_FIXTURE(NegationFixture, "string_is_not_a_subtype_of_negated_string")
{
CheckResult result = check(R"(
function foo(arg: string & Not<"hello">) end
local a: string
foo(a)
)");
LUAU_REQUIRE_ERROR_COUNT(1, result);
}
TEST_SUITE_END();