This is a set of bindings to jest in ReasonML, It aims to be simpler to use than bs-jest, with most functions returning unit, enabling a developer to write their tests with the same approach they would take writing them in JavaScript, but without needing to leave the type safety of ReasonML.
describe("myTests", () => { test("numbers", () => { let myNumber = 123; expect(myNumber)->toBeGreaterThan(100); expect(myNumber)->not->toBeLessThanOrEqual(1); // It also works for floats... expect(myNumber->float_of_int)->toBeLessThan(124.0); }); testAsync("promises", () => { expect(Js.Promise.resolve(123))->resolves->toEqual(123); }); test("arrays", () => { expect([|1, 2, 3, 4, 5|])->toContain(4); }); // Still working on this one... Skip.test("billion dollar idea generator", () => expect(generateBillionDollarCompany()->valuation) ->toBeGreaterThan(1000000000) ); });Very much a work in progress, but nonetheless it can do enough to test plenty of existing code.