'use strict';
require('../common');
const assert = require('assert');
const buf = Buffer.allocUnsafe(8);
['LE', 'BE'].forEach(function(endianness) {
let val = 123456789n;
buf[`writeBigInt64${endianness}`](val, 0);
let rtn = buf[`readBigInt64${endianness}`](0);
assert.strictEqual(val, rtn);
val = 0x7fffffffffffffffn;
buf[`writeBigInt64${endianness}`](val, 0);
rtn = buf[`readBigInt64${endianness}`](0);
assert.strictEqual(val, rtn);
val = -123456789n;
buf[`writeBigInt64${endianness}`](val, 0);
assert.strictEqual(val, buf[`readBigInt64${endianness}`](0));
val = 123456789n;
buf[`writeBigUInt64${endianness}`](val, 0);
assert.strictEqual(val, buf[`readBigUInt64${endianness}`](0));
assert.throws(function() {
const val = 0x8000000000000000n;
buf[`writeBigInt64${endianness}`](val, 0);
}, RangeError);
assert.throws(function() {
const val = 0x10000000000000000n;
buf[`writeBigUInt64${endianness}`](val, 0);
}, {
code: 'ERR_OUT_OF_RANGE',
message: 'The value of "value" is out of range. It must be ' +
'>= 0n and < 2n ** 64n. Received 18_446_744_073_709_551_616n'
});
assert.throws(function() {
buf[`writeBigInt64${endianness}`]('bad', 0);
}, TypeError);
assert.throws(function() {
buf[`writeBigUInt64${endianness}`]('bad', 0);
}, TypeError);
});