ladybird/Userland/Libraries/LibJS/Tests/eval-aliasing.js
Jesús (gsus) Lapastora 1850652881 LibJS/Bytecode: Check if eval function is a function
When overriding 'eval' to a non-function value, the interpreter would
crash. Now it handles this case swiftly, throwing a TypeError.
2023-11-11 08:56:12 +01:00

20 lines
755 B
JavaScript

test("variable named 'eval' pointing to another function calls that function", function () {
var testValue = "inner";
// This breaks prettier as it considers this to be a parse error
// before even trying to do any linting
var eval = () => {
return "wat";
};
expect(eval("testValue")).toEqual("wat");
});
test("variable named 'eval' pointing to real eval works as a direct eval", function () {
var testValue = "inner";
var eval = globalThis.eval;
expect(eval("testValue")).toEqual("inner");
});
test("variable named 'eval' pointing to a non-function raises a TypeError", function () {
var eval = "borked";
expect(() => eval("something").toThrowWithMessage(TypeError, "borked is not a function"));
});