luau/tests/TypeInfer.negations.test.cpp
vegorov-rbx a6b5051edc
Sync to upstream/release/551 (#727)
* https://github.com/Roblox/luau/pull/719
* Improved `Failed to unify type packs` error message to be reported as
`Type pack 'X' could not be converted into 'Y'`
* https://github.com/Roblox/luau/pull/722
* 1% reduction in executed instruction count by removing a check in fast
call dispatch
* Additional fixes to reported error location of OOM errors in VM
* Improve `math.sqrt`, `math.floor` and `math.ceil` performance on
additional compilers and platforms (1-2% geomean improvement including
8-9% on math-cordic)
* All thrown exceptions by Luau analysis are derived from
`Luau::InternalCompilerError`
* When a call site has fewer arguments than required, error now reports
the location of the function name instead of the argument to the
function
* https://github.com/Roblox/luau/pull/724
* Fixed https://github.com/Roblox/luau/issues/725

Co-authored-by: Arseny Kapoulkine <arseny.kapoulkine@gmail.com>
Co-authored-by: Andy Friesen <afriesen@roblox.com>
2022-10-28 03:37:29 -07:00

52 lines
1 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[2] {
{"LuauNegatedStringSingletons", true},
{"LuauSubtypeNormalizer", true},
};
NegationFixture()
{
registerNotType(*this, arena);
}
};
}
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();