Files
node/test/parallel/test-validators.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

27 lines
809 B
JavaScript

// Flags: --expose-internals
'use strict';
require('../common');
const assert = require('assert');
const {
validateInteger
} = require('internal/validators');
const { MAX_SAFE_INTEGER, MIN_SAFE_INTEGER } = Number;
const outOfRangeError = {
code: 'ERR_OUT_OF_RANGE',
name: 'RangeError'
};
// validateInteger() defaults to validating safe integers.
validateInteger(MAX_SAFE_INTEGER, 'foo');
validateInteger(MIN_SAFE_INTEGER, 'foo');
assert.throws(() => {
validateInteger(MAX_SAFE_INTEGER + 1, 'foo');
}, outOfRangeError);
assert.throws(() => {
validateInteger(MIN_SAFE_INTEGER - 1, 'foo');
}, outOfRangeError);
// validateInteger() works with unsafe integers.
validateInteger(MAX_SAFE_INTEGER + 1, 'foo', 0, MAX_SAFE_INTEGER + 1);
validateInteger(MIN_SAFE_INTEGER - 1, 'foo', MIN_SAFE_INTEGER - 1);