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Diffstat (limited to 'test/parallel/test-buffer-bigint64.js')
-rw-r--r-- | test/parallel/test-buffer-bigint64.js | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/parallel/test-buffer-bigint64.js b/test/parallel/test-buffer-bigint64.js new file mode 100644 index 0000000000..859a40811e --- /dev/null +++ b/test/parallel/test-buffer-bigint64.js @@ -0,0 +1,51 @@ +'use strict'; +require('../common'); +const assert = require('assert'); + +const buf = Buffer.allocUnsafe(8); + +['LE', 'BE'].forEach(function(endianness) { + // Should allow simple BigInts to be written and read + let val = 123456789n; + buf['writeBigInt64' + endianness](val, 0); + let rtn = buf['readBigInt64' + endianness](0); + assert.strictEqual(val, rtn); + + // Should allow INT64_MAX to be written and read + val = 0x7fffffffffffffffn; + buf['writeBigInt64' + endianness](val, 0); + rtn = buf['readBigInt64' + endianness](0); + assert.strictEqual(val, rtn); + + // Should read and write a negative signed 64-bit integer + val = -123456789n; + buf['writeBigInt64' + endianness](val, 0); + assert.strictEqual(val, buf['readBigInt64' + endianness](0)); + + // Should read and write an unsigned 64-bit integer + val = 123456789n; + buf['writeBigUInt64' + endianness](val, 0); + assert.strictEqual(val, buf['readBigUInt64' + endianness](0)); + + // Should throw a RangeError upon INT64_MAX+1 being written + assert.throws(function() { + const val = 0x8000000000000000n; + buf['writeBigInt64' + endianness](val, 0); + }, RangeError); + + // Should throw a RangeError upon UINT64_MAX+1 being written + assert.throws(function() { + const val = 0x10000000000000000n; + buf['writeBigUInt64' + endianness](val, 0); + }, RangeError); + + // Should throw a TypeError upon invalid input + assert.throws(function() { + buf['writeBigInt64' + endianness]('bad', 0); + }, TypeError); + + // Should throw a TypeError upon invalid input + assert.throws(function() { + buf['writeBigUInt64' + endianness]('bad', 0); + }, TypeError); +}); |