How do you run the tests?

[RobbeCl]

When checking out the repo and running the test command, I get a Typescript error

TSError: ⨯ Unable to compile TypeScript:
test/ts_connected.logger.spec.ts:110:41 - error TS2339: Property 'greaterThanOrEqual' does not exist on type 'Assertion'.

110             expect(events.length).to.be.greaterThanOrEqual(options.calls[0]).and.lessThanOrEqual(options.calls[1]);

Does anyone got this working?