test: remove duplicated buffer negative allocation test

PR-URL: #26160
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Сковорода Никита Андреевич <chalkerx@gmail.com>

test/parallel/test-buffer-no-negative-allocation.js

@@ -2,12 +2,13 @@
 
 const common = require('../common');
 const assert = require('assert');
+const { SlowBuffer } = require('buffer');
 
 const msg = common.expectsError({
   code: 'ERR_INVALID_OPT_VALUE',
   type: RangeError,
   message: /^The value "[^"]*" is invalid for option "size"$/
-}, 12);
+}, 15);
 
 // Test that negative Buffer length inputs throw errors.
 
@@ -26,3 +27,7 @@ assert.throws(() => Buffer.allocUnsafe(-1), msg);
 assert.throws(() => Buffer.allocUnsafeSlow(-Buffer.poolSize), msg);
 assert.throws(() => Buffer.allocUnsafeSlow(-100), msg);
 assert.throws(() => Buffer.allocUnsafeSlow(-1), msg);
+
+assert.throws(() => SlowBuffer(-Buffer.poolSize), msg);
+assert.throws(() => SlowBuffer(-100), msg);
+assert.throws(() => SlowBuffer(-1), msg);