luau/tests/Error.test.cpp
2024-08-30 12:28:44 -07:00

85 lines
2.3 KiB
C++

// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
#include "Luau/Error.h"
#include "Fixture.h"
#include "doctest.h"
using namespace Luau;
LUAU_FASTFLAG(LuauSolverV2)
TEST_SUITE_BEGIN("ErrorTests");
TEST_CASE("TypeError_code_should_return_nonzero_code")
{
auto e = TypeError{{{0, 0}, {0, 1}}, UnknownSymbol{"Foo"}};
CHECK_GE(e.code(), 1000);
}
TEST_CASE_FIXTURE(BuiltinsFixture, "metatable_names_show_instead_of_tables")
{
frontend.options.retainFullTypeGraphs = false;
CheckResult result = check(R"(
--!strict
local Account = {}
Account.__index = Account
function Account.deposit(self: Account, x: number)
self.balance += x
end
type Account = typeof(setmetatable({} :: { balance: number }, Account))
local x: Account = 5
)");
LUAU_REQUIRE_ERROR_COUNT(1, result);
CHECK_EQ("Type 'number' could not be converted into 'Account'", toString(result.errors[0]));
}
TEST_CASE_FIXTURE(BuiltinsFixture, "binary_op_type_function_errors")
{
frontend.options.retainFullTypeGraphs = false;
CheckResult result = check(R"(
--!strict
local x = 1 + "foo"
)");
LUAU_REQUIRE_ERROR_COUNT(1, result);
if (FFlag::LuauSolverV2)
CHECK_EQ(
"Operator '+' could not be applied to operands of types number and string; there is no corresponding overload for __add",
toString(result.errors[0])
);
else
CHECK_EQ("Type 'string' could not be converted into 'number'", toString(result.errors[0]));
}
TEST_CASE_FIXTURE(BuiltinsFixture, "unary_op_type_function_errors")
{
frontend.options.retainFullTypeGraphs = false;
CheckResult result = check(R"(
--!strict
local x = -"foo"
)");
if (FFlag::LuauSolverV2)
{
LUAU_REQUIRE_ERROR_COUNT(2, result);
CHECK_EQ(
"Operator '-' could not be applied to operand of type string; there is no corresponding overload for __unm", toString(result.errors[0])
);
CHECK_EQ("Type 'string' could not be converted into 'number'", toString(result.errors[1]));
}
else
{
LUAU_REQUIRE_ERROR_COUNT(1, result);
CHECK_EQ("Type 'string' could not be converted into 'number'", toString(result.errors[0]));
}
}
TEST_SUITE_END();