deno/tests/unit/error_stack_test.ts
Matt Mastracci f5e46c9bf2
chore: move cli/tests/ -> tests/ (#22369)
This looks like a massive PR, but it's only a move from cli/tests ->
tests, and updates of relative paths for files.

This is the first step towards aggregate all of the integration test
files under tests/, which will lead to a set of integration tests that
can run without the CLI binary being built.

While we could leave these tests under `cli`, it would require us to
keep a more complex directory structure for the various test runners. In
addition, we have a lot of complexity to ignore various test files in
the `cli` project itself (cargo publish exclusion rules, autotests =
false, etc).

And finally, the `tests/` folder will eventually house the `test_ffi`,
`test_napi` and other testing code, reducing the size of the root repo
directory.

For easier review, the extremely large and noisy "move" is in the first
commit (with no changes -- just a move), while the remainder of the
changes to actual files is in the second commit.
2024-02-10 20:22:13 +00:00

54 lines
1.4 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assertEquals, assertMatch } from "./test_util.ts";
Deno.test(function errorStackMessageLine() {
const e1 = new Error();
e1.name = "Foo";
e1.message = "bar";
assertMatch(e1.stack!, /^Foo: bar\n/);
const e2 = new Error();
e2.name = "";
e2.message = "bar";
assertMatch(e2.stack!, /^bar\n/);
const e3 = new Error();
e3.name = "Foo";
e3.message = "";
assertMatch(e3.stack!, /^Foo\n/);
const e4 = new Error();
e4.name = "";
e4.message = "";
assertMatch(e4.stack!, /^\n/);
const e5 = new Error();
// deno-lint-ignore ban-ts-comment
// @ts-expect-error
e5.name = undefined;
// deno-lint-ignore ban-ts-comment
// @ts-expect-error
e5.message = undefined;
assertMatch(e5.stack!, /^Error\n/);
const e6 = new Error();
// deno-lint-ignore ban-ts-comment
// @ts-expect-error
e6.name = null;
// deno-lint-ignore ban-ts-comment
// @ts-expect-error
e6.message = null;
assertMatch(e6.stack!, /^null: null\n/);
});
Deno.test(function captureStackTrace() {
function foo() {
const error = new Error();
const stack1 = error.stack!;
Error.captureStackTrace(error, foo);
const stack2 = error.stack!;
// stack2 should be stack1 without the first frame.
assertEquals(stack2, stack1.replace(/(?<=^[^\n]*\n)[^\n]*\n/, ""));
}
foo();
});