test-combo

library0.0.2jsnpmunverified

A testing framework built on top of Jest that generates test cases from configuration-driven combinatorial inputs. Current stable version 0.0.2 (published 2022-11-30). Enables high-coverage testing by defining factors and their conditions, then automatically generating all combinations as Jest test cases. Differentiates from parameterized testing libraries by providing a declarative factor/condition model and built-in support for setup/teardown per combination. Release cadence is unknown; appears to be a pre-1.0 package with limited adoption.

testing

npm install test-combo

package ↗

INSTALL

IMPORT

SIG · TEST-COMBO

test-combo

testingjavascriptv0.0.2

Install

—

Import

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Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

default

✓ import testCombo from 'test-combo'

✗ const testCombo = require('test-combo')

test-combo ships as ESM only (no CJS support). Use import syntax.

TestCombo

✓ import { TestCombo } from 'test-combo'

✗ import TestCombo from 'test-combo'

Named export TestCombo is the class constructor. Default export is the same but less explicit.

Factor

✓ import { Factor } from 'test-combo'

✗ const Factor = require('test-combo').Factor

Factor is a named export, not a default. Use destructured import.

Condition

✓ import { Condition } from 'test-combo'

✗ import { Condition } from 'test-combo/dist/index.js'

Condition is part of the public API; no subpath import needed.

Generate Jest test cases from factor combinations with condition-based assertions. Shows Factor/Condition API and test generation.

import testCombo, { Factor, Condition } from 'test-combo'; const add = (a, b) => a + b; testCombo({ name: 'add', test: (factor, condition) => { if (condition === 'positive') { expect(add(factor.a, factor.b)).toBeGreaterThan(0); } else { expect(add(factor.a, factor.b)).toBeLessThanOrEqual(0); } }, factors: [ { name: 'a', values: [1, 2, -1, -2] }, { name: 'b', values: [3, -3, 0, 5] }, ], conditions: [ { name: 'positive', filter: (f) => f.a + f.b > 0 }, { name: 'non-positive', filter: (f) => f.a + f.b <= 0 }, ], });

Debug

Known issues

breakingtest-combo requires Jest as a peer dependency. Ensure Jest is installed and configured, or tests will fail to execute.

fix

Install jest: npm install --save-dev jest

affects: >=0.0.1

deprecatedThe default export testCombo is deprecated in favor of the named export TestCombo in future versions.

fix

Use import { TestCombo } from 'test-combo' instead of default import.

affects: 0.0.x

gotchaFactor values are deep-equality compared; avoid using non-serializable objects (e.g., functions) to prevent unexpected behavior.

fix

Use primitive values or plain objects for factor values.

affects: >=0.0.1

Errors

Common errors & fixes

TypeError: testCombo is not a function

Using CommonJS require() on an ESM-only package.

fix

Switch to ESM: add 'type': 'module' to package.json or use import syntax.

Cannot find module 'jest'

Jest is not installed as a devDependency.

fix

Run npm install --save-dev jest

testCombo is not a function (or undefined)

Importing default incorrectly with named import syntax.

fix

Use import testCombo from 'test-combo'

Upgrade

Version history

0.0.2latest on npm

Audit

Dependencies

jestrequiredRuntime peer dependency; test-combo runs on top of Jest and requires Jest as the test runner.

Agent activity

2 hits · last 30 days

node

Resources

packagehttps://www.npmjs.com/package/test-combo ↗