mirror of
https://github.com/denoland/deno.git
synced 2024-10-31 09:14:20 -04:00
43 lines
1.5 KiB
TypeScript
43 lines
1.5 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
|
|
|
|
import {
|
|
assert,
|
|
assertStringIncludes,
|
|
} from "../../../test_util/std/testing/asserts.ts";
|
|
|
|
/** Asserts that an error thrown in a callback will not be wrongly caught. */
|
|
export async function assertCallbackErrorUncaught(
|
|
{ prelude, invocation, cleanup }: {
|
|
/** Any code which needs to run before the actual invocation (notably, any import statements). */
|
|
prelude?: string;
|
|
/**
|
|
* The start of the invocation of the function, e.g. `open("foo.txt", `.
|
|
* The callback will be added after it.
|
|
*/
|
|
invocation: string;
|
|
/** Called after the subprocess is finished but before running the assertions, e.g. to clean up created files. */
|
|
cleanup?: () => Promise<void> | void;
|
|
},
|
|
) {
|
|
// Since the error has to be uncaught, and that will kill the Deno process,
|
|
// the only way to test this is to spawn a subprocess.
|
|
const p = new Deno.Command(Deno.execPath(), {
|
|
args: [
|
|
"eval",
|
|
"--unstable",
|
|
`${prelude ?? ""}
|
|
|
|
${invocation}(err) => {
|
|
// If the bug is present and the callback is called again with an error,
|
|
// don't throw another error, so if the subprocess fails we know it had the correct behaviour.
|
|
if (!err) throw new Error("success");
|
|
});`,
|
|
],
|
|
stderr: "piped",
|
|
});
|
|
const { stderr, success } = await p.output();
|
|
const error = new TextDecoder().decode(stderr);
|
|
await cleanup?.();
|
|
assert(!success);
|
|
assertStringIncludes(error, "Error: success");
|
|
}
|