sendanor/sstest

This project is extremely simple unit test runner for NodeJS.

• It can run tests written in JavaScript (or TypeScript)
• It's less than 200 lines of code
• It has zero runtime dependencies -- and only three (3!) development dependencies, NodeJS included
• It does not need configuring
• It runs on NodeJS v14 LTS and newer (but maybe older too)

Background

It was made from the frustration of setting up Mocha & etc for a new project, which also bring your project extra 109 packages as a dependency, and often this needless effort is the only reason why my project doesn't have unit tests and takes a lot of disk space (not to mention security issues and the work needed to audit that).

It took me less than two hours of work and one can of Nocco to implement it -- which is much less than setting up fully working Mocha setup.

What it is not

It doesn't include any asserting library, spies, fakes, or anything like that, since it's not the job for a test runner.

I suggest using SinonJS for writing tests, but you may even use Node's assert module.

Example test

If you're testing DlInstance class, create a file named DlInstanceTest and write your tests as static functions:

import AssertUtils from "./AssertUtils";

export class DlInstanceTest {

    public static firstTest () {

        AssertUtils.equals(1, 2);

    }

}

How to install

You can install it using NPM:

npm i -D @sendanor/sstest

If you want the latest non-stable version directly from our Github:

npm i -D sendanor/sstest

How to run your tests

You'll need to tell sstest where to look for compiled JavaScript test files.

These are any files named *Test.js.

If you use a build system like TypeScript, then direct the test runner to look files from the ./dist folder.

$ sstest ./dist
1 (of 1) tests failed:

[/Users/jhh/git/sendanor/dldb/dist/DlInstanceTest.js] DlInstanceTest.firstTest failed:  TypeError: Values were not equal: 1 !== 2
    at Function.AssertUtils.equals (/Users/jhh/git/sendanor/dldb/dist/AssertUtils.js:9:19)
    at Function.DlInstanceTest.firstTest (/Users/jhh/git/sendanor/dldb/dist/DlInstanceTest.js:9:34)
    at /Users/jhh/git/sendanor/dldb/dist/test.js:46:59
    at Array.forEach (<anonymous>)
    at /Users/jhh/git/sendanor/dldb/dist/test.js:30:33
    at Array.forEach (<anonymous>)
    at TestRunner.testFile (/Users/jhh/git/sendanor/dldb/dist/test.js:26:23)
    at Array.forEach (<anonymous>)
    at Function.TestRunner.testDirectory (/Users/jhh/git/sendanor/dldb/dist/test.js:63:29)
    at Object.<anonymous> (/Users/jhh/git/sendanor/dldb/dist/test.js:111:12) 

Example integration with package.json

You can add your scripts section to include "test": "sstest ./dist".

Then you may then use npm test to test your files:

$ npm test

> [email protected] test /Users/jhh/git/sendanor/dldb
> sstest ./dist

ERROR: 1 (of 1) tests failed:

[/Users/jhh/git/sendanor/dldb/dist/DlInstanceTest.js] DlInstanceTest.firstTest failed:  TypeError: Values were not equal: 1 !== 2
    at Function.AssertUtils.equals (/Users/jhh/git/sendanor/dldb/dist/AssertUtils.js:9:19)
    at Function.DlInstanceTest.firstTest (/Users/jhh/git/sendanor/dldb/dist/DlInstanceTest.js:9:34)
    at /Users/jhh/git/sendanor/sstest/dist/SSTestRunner.js:48:59
    at Array.forEach (<anonymous>)
    at /Users/jhh/git/sendanor/sstest/dist/SSTestRunner.js:32:33
    at Array.forEach (<anonymous>)
    at TestRunner.testFileInDir (/Users/jhh/git/sendanor/sstest/dist/SSTestRunner.js:28:23)
    at Array.forEach (<anonymous>)
    at Function.TestRunner.testDirectory (/Users/jhh/git/sendanor/sstest/dist/SSTestRunner.js:68:29)
    at /Users/jhh/git/sendanor/sstest/dist/sstest.js:24:64 

npm ERR! Test failed.  See above for more details.