Expected behavior of `describe` inside `describe.only`

[saklani]

What version of Bun is running?

1.0.26+c75e768a6

What platform is your computer?

Darwin 21.6.0 x86_64 i386

What steps can reproduce the bug?

When describe is nested inside of describe.only no test execute. This is regardless of bun test or bun test --only.

Minimum Reproducible Example

index.ts

export function sum(a: number, b: number) { return a + b; };

index.test.ts

import { sum } from "./index";

describe("Sum Only", () => {
  test("sum", () => {
    expect(sum, 4, 5).toEqual(9);
  });
});
describe.only("Sum Only", () => {
  describe("Sum Only", () => {
    test("sum", () => {
      expect(sum, 4, 5).toEqual(9);
    });
  });
});

What is the expected behavior?

• Run the test inside of describe.only when the command is bun test --only
• Run the all tests when the command is bun test

What do you see instead?

bun test v1.0.26 (c75e768a)

index.test.ts:

 0 pass
 0 fail
Ran 0 tests across 1 files. [112.00ms]

Additional information

No response

[jcarpe]

Possibly related, when nesting a describe.only inside a describe it will only execute the describe.only nested inside a describe. Even without the --only flag.

import { describe, expect, test } from "bun:test";

describe("Sum", () => {
  test("sum", () => {
    expect(1).toEqual(1);
  });
});
describe("Sum Only", () => {
  describe.only("Sum Only", () => {
    test("sum", () => {
      expect(1).toEqual(1);
    });
  });

  describe("Sum", () => {
    test("sum", () => {
      expect(1).toEqual(1);
    });
  });
});

bun test v1.0.26 (c75e768a)

index.spec.ts:
✓ Sum Only > Sum Only > sum [0.07ms]

 1 pass
 0 fail
 1 expect() calls
Ran 1 tests across 1 files. [24.00ms]