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denoland-deno/tests/unit/structured_clone_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

55 lines
1.6 KiB
TypeScript

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { assert, assertEquals, assertThrows } from "./test_util.ts";
// Basic tests for the structured clone algorithm. Mainly tests TypeScript
// typings. Actual functionality is tested in WPT.
Deno.test("self.structuredClone", async () => {
const arrayOriginal = ["hello world"];
const channelOriginal = new MessageChannel();
const [arrayCloned, portTransferred] = self
.structuredClone([arrayOriginal, channelOriginal.port2], {
transfer: [channelOriginal.port2],
});
assert(arrayOriginal !== arrayCloned); // not the same identity
assertEquals(arrayCloned, arrayOriginal); // but same value
channelOriginal.port1.postMessage("1");
await new Promise((resolve) => portTransferred.onmessage = () => resolve(1));
channelOriginal.port1.close();
portTransferred.close();
});
Deno.test("correct DataCloneError message", () => {
assertThrows(
() => {
const sab = new SharedArrayBuffer(1024);
structuredClone(sab, { transfer: [sab] });
},
DOMException,
"Value not transferable",
);
const ab = new ArrayBuffer(1);
// detach ArrayBuffer
structuredClone(ab, { transfer: [ab] });
assertThrows(
() => {
structuredClone(ab, { transfer: [ab] });
},
DOMException,
"ArrayBuffer at index 0 is already detached",
);
const ab2 = new ArrayBuffer(0);
assertThrows(
() => {
structuredClone([ab2, ab], { transfer: [ab2, ab] });
},
DOMException,
"ArrayBuffer at index 1 is already detached",
);
// ab2 should not be detached after above failure
structuredClone(ab2, { transfer: [ab2] });
});