https://github.com/draftbit/re-jest

Easier bindings to Jest for ReasonML
https://github.com/draftbit/re-jest

Last synced: about 2 months ago
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Easier bindings to Jest for ReasonML

• Host: GitHub
• URL: https://github.com/draftbit/re-jest
• Owner: draftbit
• Created: 2020-07-10T18:39:50.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-10-17T10:10:41.000Z (3 months ago)
• Last Synced: 2024-10-17T15:19:22.000Z (3 months ago)
• Language: Reason
• Size: 982 KB
• Stars: 13
• Watchers: 2
• Forks: 1
• Open Issues: 11
• Metadata Files:
  • Readme: README.md

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README

        
# re-jest

## Jest bindings in ReasonML

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.

```reason

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)

  );

});

```

## Stability

Very much a work in progress, but nonetheless it can do enough to test plenty of existing code.