node/test/parallel/test-buffer-no-negative-allocation.js
Ruben Bridgewater e038d6a1cd
test: refactor common.expectsError
This completely refactors the `expectsError` behavior: so far it's
almost identical to `assert.throws(fn, object)` in case it was used
with a function as first argument. It had a magical property check
that allowed to verify a functions `type` in case `type` was passed
used in the validation object. This pattern is now completely removed
and `assert.throws()` should be used instead.

The main intent for `common.expectsError()` is to verify error cases
for callback based APIs. This is now more flexible by accepting all
validation possibilites that `assert.throws()` accepts as well. No
magical properties exist anymore. This reduces surprising behavior
for developers who are not used to the Node.js core code base.

This has the side effect that `common` is used significantly less
frequent.

PR-URL: https://github.com/nodejs/node/pull/31092
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
2019-12-31 15:54:20 +01:00

39 lines
1.3 KiB
JavaScript

'use strict';
require('../common');
const assert = require('assert');
const { SlowBuffer } = require('buffer');
const msg = {
code: 'ERR_INVALID_OPT_VALUE',
name: 'RangeError',
message: /^The value "[^"]*" is invalid for option "size"$/
};
// Test that negative Buffer length inputs throw errors.
assert.throws(() => Buffer(-Buffer.poolSize), msg);
assert.throws(() => Buffer(-100), msg);
assert.throws(() => Buffer(-1), msg);
assert.throws(() => Buffer(NaN), msg);
assert.throws(() => Buffer.alloc(-Buffer.poolSize), msg);
assert.throws(() => Buffer.alloc(-100), msg);
assert.throws(() => Buffer.alloc(-1), msg);
assert.throws(() => Buffer.alloc(NaN), msg);
assert.throws(() => Buffer.allocUnsafe(-Buffer.poolSize), msg);
assert.throws(() => Buffer.allocUnsafe(-100), msg);
assert.throws(() => Buffer.allocUnsafe(-1), msg);
assert.throws(() => Buffer.allocUnsafe(NaN), msg);
assert.throws(() => Buffer.allocUnsafeSlow(-Buffer.poolSize), msg);
assert.throws(() => Buffer.allocUnsafeSlow(-100), msg);
assert.throws(() => Buffer.allocUnsafeSlow(-1), msg);
assert.throws(() => Buffer.allocUnsafeSlow(NaN), msg);
assert.throws(() => SlowBuffer(-Buffer.poolSize), msg);
assert.throws(() => SlowBuffer(-100), msg);
assert.throws(() => SlowBuffer(-1), msg);
assert.throws(() => SlowBuffer(NaN), msg);