A library aimed to aid testing of TypeScript definitions. Checks TypeScript files for syntactic, expected and unexpected semantic (type) errors.
Note: There's an official tool that provides similar functionality and might be a better choice.
$ npm install -D typings-tester
Any version of TypeScript must be installed separately.
$ typings-tester --config path/to/tsconfig.json **/*.ts
$ typings-tester --dir path/to/directory
import test from "tape";
import {check, checkDirectory} from "typings-tester";
test('typings', assert => {
assert.doesNotThrow(() => check(['test.ts'], 'tsconfig.json'));
assert.doesNotThrow(() => checkDirectory('src'));
});typings:expect-error: expect next line or block to contain semantic error.typings-testerwill fail if no error is produced.
// typings:expect-error
function shouldFail(a: number): string {
return a;
}- Testing against multiple versions of TypeScript
- Inferred type assertions