Bare minimum test runner for Typescript projects.

CLI

loltest [file filter] [test name filter]

[file filter]: string. If provided, we'll only include files whose names start with this string.
[test name filter]: string|pattern. If provided, we'll only include tests whose names match this pattern.

Env vars
==========
LOLTEST_TEST_DIR: string. Change test directory from the default `test` in current working directory.
LOLTEST_REPORTER: 'loltest | loltest2 | tap'. Change from default `loltest`.

Usage

In package.json:

  "scripts": {
      "test": "loltest"
  }

In test/foo.ts:

import assert from 'assert';
import { test } from 'loltest';

test('It works', () => {
    assert.deepEqual(2, 4);
});

Run like this:

$ npm test

That's it!

Select test file

If you want to run for a single file, provide a portion of the filename as argument to loltest:

$ ls test/
one-test.ts  another-test.ts
$ npm test -- another
# Only another-test.ts will be run

Note: Do not include the path to the test directory when specifying a single file.

Single test in file

If you want to run a subset of tests in a file, you can provide a filter on their names as a second argument to loltest:

// my-test.ts
import { test } from 'loltest';

test('Test for normal array', () => { /* ...  */ });

test('Test for empty array', () => { /* ...  */ });

test('Test for null array', () => { /* ...  */ });

$ npm test -- my-test empty
# Will only run tests matching /empty/
$ npm test -- my-test "empty|null"
# Will only run tests matching /empty|null/

Note: Your shell might dislike some regex symbols in the test name filter. You might want to wrap them in quotes.

Reporters

We bundle these reporters:

• loltest (default)
• loltest2
• tap

Choose between reporters with the LOLTEST_REPORTER environment variable.

$ LOLTEST_REPORTER=tap npx loltest

Layout

Tests must be in the directory <my_project>/test/. Any test file with a name starting _ will be ignored.