Typings Tester [![npm version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url]

A library aimed to aid testing of TypeScript definitions.
Checks TypeScript files for syntactic, expected and unexpected semantic (type) errors.

Installation

$ npm install -D typings-tester

Any version of TypeScript must be installed separately.

CLI Usage

$ typings-tester --config path/to/tsconfig.json */.ts

$ typings-tester --dir path/to/directory

API Usage

``ts
import test from "tape";
import {check, checkDirectory} from "typings-tester";


test('typings', assert => {
assert.doesNotThrow(() => check(['test.ts'], 'tsconfig.json'));

assert.doesNotThrow(() => checkDirectory('src'));
});
`

Flags


* typings:expect-error: expect next line or block to contain semantic error. typings-tester will fail if no error is produced.

`ts
// typings:expect-error
function shouldFail(a: number): string {
return a;
}
``

What's next

* Testing against multiple versions of TypeScript
* Inferred type assertions

[npm-image]: https://badge.fury.io/js/typings-tester.svg
[npm-url]: https://badge.fury.io/js/typings-tester
[travis-image]: https://travis-ci.org/aikoven/typings-tester.svg?branch=master
[travis-url]: https://travis-ci.org/aikoven/typings-tester