node/test/parallel/test-assert-fail.js
Ruben Bridgewater 70dcacd710
assert: deprecate assert.fail partially
Using `assert.fail()` with more than one argument is not intuitive
to use and has no benefit over using a message on its own.

Therefore this introduces a runtime deprecation in case it is used
in that way.

PR-URL: https://github.com/nodejs/node/pull/18418
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
2018-02-02 19:05:22 +01:00

41 lines
766 B
JavaScript

'use strict';
require('../common');
const assert = require('assert');
// No args
assert.throws(
() => { assert.fail(); },
{
code: 'ERR_ASSERTION',
name: 'AssertionError [ERR_ASSERTION]',
message: 'Failed',
operator: undefined,
actual: undefined,
expected: undefined
}
);
// One arg = message
assert.throws(() => {
assert.fail('custom message');
}, {
code: 'ERR_ASSERTION',
name: 'AssertionError [ERR_ASSERTION]',
message: 'custom message',
operator: undefined,
actual: undefined,
expected: undefined
});
// One arg = Error
assert.throws(() => {
assert.fail(new TypeError('custom message'));
}, {
name: 'TypeError',
message: 'custom message',
operator: undefined,
actual: undefined,
expected: undefined
});