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54 lines
1.4 KiB
TypeScript
54 lines
1.4 KiB
TypeScript
// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.
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import { assertEquals, assertMatch } from "./test_util.ts";
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Deno.test(function errorStackMessageLine() {
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const e1 = new Error();
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e1.name = "Foo";
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e1.message = "bar";
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assertMatch(e1.stack!, /^Foo: bar\n/);
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const e2 = new Error();
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e2.name = "";
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e2.message = "bar";
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assertMatch(e2.stack!, /^bar\n/);
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const e3 = new Error();
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e3.name = "Foo";
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e3.message = "";
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assertMatch(e3.stack!, /^Foo\n/);
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const e4 = new Error();
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e4.name = "";
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e4.message = "";
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assertMatch(e4.stack!, /^\n/);
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const e5 = new Error();
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e5.name = undefined;
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e5.message = undefined;
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assertMatch(e5.stack!, /^Error\n/);
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const e6 = new Error();
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e6.name = null;
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// deno-lint-ignore ban-ts-comment
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// @ts-expect-error
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e6.message = null;
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assertMatch(e6.stack!, /^null: null\n/);
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});
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Deno.test(function captureStackTrace() {
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function foo() {
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const error = new Error();
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const stack1 = error.stack!;
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Error.captureStackTrace(error, foo);
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const stack2 = error.stack!;
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// stack2 should be stack1 without the first frame.
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assertEquals(stack2, stack1.replace(/(?<=^[^\n]*\n)[^\n]*\n/, ""));
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}
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foo();
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});
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