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denoland-deno/cli/tests/unit/error_test.ts
Colin Ihrig 3b1204eb2d
fix(core): make errors more resistant to tampering (#15789)
This commit makes error objects more resistant to
prototype tampering.

This bug was found when updating the deno_std Node compatibility
layer to Node 18. The Node test 'parallel/test-assert-fail.js'
was breaking std's assertion library.

Refs: https://github.com/denoland/deno_std/pull/2585
2022-09-07 09:11:16 -04:00

32 lines
1.6 KiB
TypeScript

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.
import { assert, assertThrows, fail } from "./test_util.ts";
Deno.test("Errors work", () => {
assert(new Deno.errors.NotFound("msg") instanceof Error);
assert(new Deno.errors.PermissionDenied("msg") instanceof Error);
assert(new Deno.errors.ConnectionRefused("msg") instanceof Error);
assert(new Deno.errors.ConnectionReset("msg") instanceof Error);
assert(new Deno.errors.ConnectionAborted("msg") instanceof Error);
assert(new Deno.errors.NotConnected("msg") instanceof Error);
assert(new Deno.errors.AddrInUse("msg") instanceof Error);
assert(new Deno.errors.AddrNotAvailable("msg") instanceof Error);
assert(new Deno.errors.BrokenPipe("msg") instanceof Error);
assert(new Deno.errors.AlreadyExists("msg") instanceof Error);
assert(new Deno.errors.InvalidData("msg") instanceof Error);
assert(new Deno.errors.TimedOut("msg") instanceof Error);
assert(new Deno.errors.Interrupted("msg") instanceof Error);
assert(new Deno.errors.WriteZero("msg") instanceof Error);
assert(new Deno.errors.UnexpectedEof("msg") instanceof Error);
assert(new Deno.errors.BadResource("msg") instanceof Error);
assert(new Deno.errors.Http("msg") instanceof Error);
assert(new Deno.errors.Busy("msg") instanceof Error);
assert(new Deno.errors.NotSupported("msg") instanceof Error);
});
Deno.test("Errors have some tamper resistance", () => {
// deno-lint-ignore no-explicit-any
(Object.prototype as any).get = () => {};
assertThrows(() => fail("test error"), Error, "test error");
// deno-lint-ignore no-explicit-any
delete (Object.prototype as any).get;
});