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test: fix flaky test-webcrypto-encrypt-decrypt-aes #37380

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test: fix flaky test-webcrypto-encrypt-decrypt-aes #37380

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c8b1459
test: fix flaky test-webcrypto-encrypt-decrypt-aes
RaisinTen Feb 15, 2021
0a0fe6f
fixup! test: fix flaky test-webcrypto-encrypt-decrypt-aes
RaisinTen Feb 15, 2021
1af9376
remove flaky test from parallel.status
RaisinTen Feb 15, 2021
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2 changes: 0 additions & 2 deletions test/parallel/parallel.status
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Original file line number Diff line number Diff line change
Expand Up @@ -27,8 +27,6 @@ test-worker-memory: PASS,FLAKY
test-worker-message-port-transfer-terminate: PASS,FLAKY

[$system==linux]
# https://github.com/nodejs/node/issues/35586
test-webcrypto-encrypt-decrypt-aes: PASS,FLAKY

[$system==macos]

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9 changes: 7 additions & 2 deletions test/parallel/test-webcrypto-encrypt-decrypt-aes.js
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Expand Up @@ -9,6 +9,9 @@ const assert = require('assert');
const { getRandomValues, subtle } = require('crypto').webcrypto;

async function testEncrypt({ keyBuffer, algorithm, plaintext, result }) {
// Using a copy of plaintext to prevent tampering of the original
plaintext = Buffer.from(plaintext);

const key = await subtle.importKey(
'raw',
keyBuffer,
Expand All @@ -23,8 +26,10 @@ async function testEncrypt({ keyBuffer, algorithm, plaintext, result }) {
Buffer.from(output).toString('hex'),
Buffer.from(result).toString('hex'));

const check = await subtle.decrypt(algorithm, key, output);
output[0] = 255 - output[0];
// Converting the returned ArrayBuffer into a Buffer right away,
// so that the next line works
const check = Buffer.from(await subtle.decrypt(algorithm, key, output));
check[0] = 255 - check[0];

assert.strictEqual(
Buffer.from(check).toString('hex'),
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