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test: assert write return values in buffer-bigint64 #57212

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Merged
nodejs-github-bot merged 1 commit into from
Feb 28, 2025
Merged

test: assert write return values in buffer-bigint64 #57212

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7 changes: 6 additions & 1 deletion test/parallel/test-buffer-bigint64.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
require('../common');
const assert = require('assert');

const buf = Buffer.allocUnsafe(8);
const buf = Buffer.allocUnsafe(9);

['LE', 'BE'].forEach(function(endianness) {
// Should allow simple BigInts to be written and read
Expand All @@ -27,6 +27,11 @@ const buf = Buffer.allocUnsafe(8);
buf[`writeBigUInt64${endianness}`](val, 0);
assert.strictEqual(val, buf[`readBigUInt64${endianness}`](0));

assert.strictEqual(buf[`writeBigUInt64${endianness}`](val, 0), 8);
assert.strictEqual(buf[`writeBigInt64${endianness}`](val, 0), 8);
assert.strictEqual(buf[`writeBigUInt64${endianness}`](val, 1), 9);
assert.strictEqual(buf[`writeBigInt64${endianness}`](val, 1), 9);

// Should throw a RangeError upon INT64_MAX+1 being written
assert.throws(function() {
const val = 0x8000000000000000n;
Expand Down