buffer: fix MAX_LENGTH constant export

This was a typo and accidentally returned the wrong value. Fixes: #14819 Ref: #13467 PR-URL: #14821 Reviewed-By: Evan Lucas <[email protected]> Reviewed-By: Yuta Hiroto <[email protected]> Reviewed-By: Tobias Nießen <[email protected]> Reviewed-By: Colin Ihrig <[email protected]> Reviewed-By: Luigi Pinca <[email protected]> Reviewed-By: Michaël Zasso <[email protected]>
nodejs · Sep 11, 2017 · 9f4e835 · 9f4e835
1 parent 9836254
commit 9f4e835
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diff --git a/lib/buffer.js b/lib/buffer.js
@@ -47,7 +47,7 @@ exports.kMaxLength = binding.kMaxLength;
 
 const constants = Object.defineProperties({}, {
   MAX_LENGTH: {
-    value: binding.kStringMaxLength,
+    value: binding.kMaxLength,
     writable: false,
     enumerable: true
   },

diff --git a/test/parallel/test-buffer-constants.js b/test/parallel/test-buffer-constants.js
@@ -2,6 +2,7 @@
 require('../common');
 const assert = require('assert');
 
+const { kMaxLength, kStringMaxLength } = require('buffer');
 const { MAX_LENGTH, MAX_STRING_LENGTH } = require('buffer').constants;
 
 assert.strictEqual(typeof MAX_LENGTH, 'number');
@@ -11,3 +12,7 @@ assert.throws(() => ' '.repeat(MAX_STRING_LENGTH + 1),
               /^RangeError: Invalid string length$/);
 
 assert.doesNotThrow(() => ' '.repeat(MAX_STRING_LENGTH));
+
+// Legacy values match:
+assert.strictEqual(kMaxLength, MAX_LENGTH);
+assert.strictEqual(kStringMaxLength, MAX_STRING_LENGTH);