test-mixer
v4.1.14
Published
Test helper to generate function opts object variations
Downloads
58,875
Maintainers
Readme
Install
This package is pure ESM. If you're not ready yet, install an older version of this program, 2.1.0 (npm i [email protected]
).
npm i test-mixer
Quick Take
import { strict as assert } from "assert";
import { mixer } from "test-mixer";
// check all possible combinations of all boolean opts:
const defaultOpts = {
scrapeWindshield: true,
checkOil: true,
inflateTires: false,
extinguishersCount: 1, // as non-boolean will be ignored
};
// generates 2^3 = 8 combinations all possible bools
assert.deepEqual(
mixer(
{
// empty first arg object means you want all combinations
},
defaultOpts,
),
[
{
scrapeWindshield: false,
checkOil: false,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: true,
checkOil: false,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: false,
checkOil: true,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: true,
checkOil: true,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: false,
checkOil: false,
inflateTires: true,
extinguishersCount: 1,
},
{
scrapeWindshield: true,
checkOil: false,
inflateTires: true,
extinguishersCount: 1,
},
{
scrapeWindshield: false,
checkOil: true,
inflateTires: true,
extinguishersCount: 1,
},
{
scrapeWindshield: true,
checkOil: true,
inflateTires: true,
extinguishersCount: 1,
},
],
);
// let's "pin" a value, prepare two sets of options objects,
// one where scrapeWindshield === true and another with "false"
// you'll get 2 ^ (3-1) = 4 variations:
const variationsWithScrapeWindshieldOn = mixer(
{
scrapeWindshield: true,
},
defaultOpts,
);
assert.deepEqual(variationsWithScrapeWindshieldOn, [
{
scrapeWindshield: true, // <--- pinned
checkOil: false,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: true, // <--- pinned
checkOil: true,
inflateTires: false,
extinguishersCount: 1,
},
{
scrapeWindshield: true, // <--- pinned
checkOil: false,
inflateTires: true,
extinguishersCount: 1,
},
{
scrapeWindshield: true, // <--- pinned
checkOil: true,
inflateTires: true,
extinguishersCount: 1,
},
]);
// also 4 variations, similar but with scrapeWindshield === false pinned:
const variationsWithScrapeWindshieldOff = mixer(
{
scrapeWindshield: false,
},
defaultOpts,
);
assert.equal(variationsWithScrapeWindshieldOff.length, 4);
Documentation
Please visit codsen.com for a full description of the API.
Contributing
To report bugs or request features or assistance, raise an issue on GitHub.
Licence
MIT License.
Copyright © 2010-2024 Roy Revelt and other contributors.