node/test/parallel/test-whatwg-url-custom-searchparams-append.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

38 lines
1.1 KiB
JavaScript

'use strict';
// Tests below are not from WPT.
require('../common');
const assert = require('assert');
const URLSearchParams = require('url').URLSearchParams;
{
const params = new URLSearchParams();
assert.throws(() => {
params.append.call(undefined);
}, {
code: 'ERR_INVALID_THIS',
name: 'TypeError',
message: 'Value of "this" must be of type URLSearchParams'
});
assert.throws(() => {
params.append('a');
}, {
code: 'ERR_MISSING_ARGS',
name: 'TypeError',
message: 'The "name" and "value" arguments must be specified'
});
const obj = {
toString() { throw new Error('toString'); },
valueOf() { throw new Error('valueOf'); }
};
const sym = Symbol();
assert.throws(() => params.set(obj, 'b'), /^Error: toString$/);
assert.throws(() => params.set('a', obj), /^Error: toString$/);
assert.throws(() => params.set(sym, 'b'),
/^TypeError: Cannot convert a Symbol value to a string$/);
assert.throws(() => params.set('a', sym),
/^TypeError: Cannot convert a Symbol value to a string$/);
}