browser name in Json reporter result

[meeshan-dev]

Hello, how can i access the broswer name on which test was ran in JsonAssertionResult

[ArianMakiabadi]

In Vitest, JsonAssertionResult intentionally does not expose any “browser name” because Vitest itself is runner-agnostic. From Vitest’s point of view, tests are executed in a JS runtime, not in a browser identity like “Chrome” or “Firefox”.

So the short answer is:
you can’t reliably access the browser name from JsonAssertionResult, because that information is not part of Vitest’s core result model.

But here are the correct ways to approach this depending on what you actually need.

1. Vitest doesn’t know the browser unless you provide it
   Vitest only knows about:

• the environment (node, jsdom, happy-dom, etc.)
• the test context you define

Even when running browser tests (via @vitest/browser or Playwright), the browser identity lives outside JsonAssertionResult.

2. If you’re using @vitest/browser, inject the browser name yourself
   When running Vitest browser mode, you do know the browser at runtime. The correct pattern is to attach metadata during test execution.

import { test, expect } from "vitest";

test("example", () => {
  expect(true).toBe(true);
});

// global setup or setup file
(globalThis as any).__BROWSER__ = import.meta.env.VITEST_BROWSER_NAME;

Then, inside a reporter or custom result processor, you can read it:

const browserName = (globalThis as any).__BROWSER__;

And merge it into your JSON output manually.