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fix(cli/js/error_stack): Expose Error.captureStackTrace (#5254)

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Nayeem Rahman 2020-05-29 13:02:36 +01:00 • committed by GitHub
parent ce246d8d85
commit 49c7077401
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4 changed files with 56 additions and 41 deletions
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14
cli/tests/unit/error_stack_test.ts
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@ -1,5 +1,5 @@
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { unitTest, assert } from "./test_util.ts";
import { assert, assertEquals, unitTest } from "./test_util.ts";
// @ts-expect-error TypeScript (as of 3.7) does not support indexing namespaces by symbol
const { setPrepareStackTrace } = Deno[Deno.internal];
@ -96,6 +96,18 @@ unitTest(function prepareStackTrace(): void {
assert(result.includes(".ts:"), "should remap to something in 'js/'");
});
unitTest(function captureStackTrace(): void {
function foo(): void {
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();
});
unitTest(function applySourceMap(): void {
const result = Deno.applySourceMap({
fileName: "CLI_SNAPSHOT.js",