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test: change test limit for atime from 2ms to 5ms #30437

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duncanhealy wants to merge 2 commits into from
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test: change test limit for atime from 2ms to 5ms #30437

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74d8578
test: fix flaky test-fs-stat-bigint
duncanhealy Nov 12, 2019
daad06e
test: remove flaky designation for test-fs-stat-bigint
Trott Feb 9, 2020
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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 @@ -5,8 +5,6 @@ prefix parallel
# sample-test : PASS,FLAKY

[true] # This section applies to all platforms
# https://github.com/nodejs/node/issues/24593
test-fs-stat-bigint: PASS,FLAKY
# https://github.com/nodejs/node/issues/23207
test-net-connect-options-port: PASS,FLAKY

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19 changes: 10 additions & 9 deletions test/parallel/test-fs-stat-bigint.js
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,10 @@ tmpdir.refresh();

let testIndex = 0;

// It's possible that the file stats are updated between the two statSync()
// calls so allow for a small difference.
const allowableDelta = 5;

function getFilename() {
const filename = path.join(tmpdir.path, `test-file-${++testIndex}`);
fs.writeFileSync(filename, 'test');
Expand All @@ -26,8 +30,8 @@ function verifyStats(bigintStats, numStats) {
const time = val.getTime();
const time2 = bigintStats[key].getTime();
assert(
Math.abs(time - time2) < 2,
`difference of ${key}.getTime() should < 2.\n` +
Math.abs(time - time2) < allowableDelta,
`difference of ${key}.getTime() should < ${allowableDelta}.\n` +
`Number version ${time}, BigInt version ${time2}n`);
} else if (key === 'mode') {
assert.strictEqual(bigintStats[key], BigInt(val));
Expand Down Expand Up @@ -65,17 +69,14 @@ function verifyStats(bigintStats, numStats) {
const nsFromBigInt = bigintStats[nsKey];
const msFromBigIntNs = Number(nsFromBigInt / (10n ** 6n));
const msFromNum = numStats[key];
// The difference between the millisecond-precision values should be
// smaller than 2

assert(
Math.abs(msFromNum - Number(msFromBigInt)) < 2,
Math.abs(msFromNum - Number(msFromBigInt)) < allowableDelta,
`Number version ${key} = ${msFromNum}, ` +
`BigInt version ${key} = ${msFromBigInt}n`);
// The difference between the millisecond-precision value and the
// nanosecond-precision value scaled down to milliseconds should be
// smaller than 2

assert(
Math.abs(msFromNum - Number(msFromBigIntNs)) < 2,
Math.abs(msFromNum - Number(msFromBigIntNs)) < allowableDelta,
`Number version ${key} = ${msFromNum}, ` +
`BigInt version ${nsKey} = ${nsFromBigInt}n` +
` = ${msFromBigIntNs}ms`);
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