`Could not get the request store` During Server Test

Describe the bug

Previously, the sequence() generated handle could be called from a test to simulate request handling. When upgrading to the latest SvelteKit version, this now raises an error: Could not get the request store. This is an internal error. It appears this is due to missing state expected by the new OpenTelemetry Tracing feature.

I am not aware of any other way of directly testing server hooks then by invoking them directly in a test. The only work around I found is by mocking the sequence helper in the test fixture.

Reproduction

This reproduction demonstrates the error:
sveltekit-issue-get-request-store

The repository also includes a working test, using SveltKit v2.21.2.

Logs

FAIL   server  src/hooks.server.test.ts > can call handler
Error: Could not get the request store. This is an internal error.
 ❯ get_request_store node_modules/@sveltejs/kit/src/exports/internal/event.js:48:9
 ❯ node_modules/@sveltejs/kit/src/exports/hooks/sequence.js:85:21
 ❯ src/hooks.server.test.ts:12:26
     10|   } as RequestEvent
     11|   const resolve = vi.fn().mockResolvedValue(new Response('OK'));
     12|   const response = await handle({ event : event, resolve : resolve });
       |                          ^
     13|   expect(response).toBeDefined();
     14| });

⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯[1/1]⎯


 Test Files  1 failed (1)
      Tests  1 failed (1)
   Start at  11:37:10
   Duration  488ms (transform 53ms, setup 0ms, collect 67ms, tests 8ms, environment 0ms, prepare 127ms)

System Info

System:
    OS: Windows 11 10.0.26100
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
    Memory: 1.67 GB / 11.70 GB
  Binaries:
    Node: 22.16.0 - C:\Program Files\nodejs\node.EXE
    Yarn: 4.9.2 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 10.9.2 - C:\Program Files\nodejs\npm.CMD
  Browsers:
    Edge: Chromium (138.0.3351.77)
    Internet Explorer: 11.0.26100.1882
  npmPackages:
    @sveltejs/adapter-auto: ^6.0.0 => 6.0.1
    @sveltejs/kit: ^2.31.1 => 2.21.2
    @sveltejs/vite-plugin-svelte: ^5.0.0 => 5.1.0
    svelte: ^5.0.0 => 5.33.18
    vite: ^6.2.6 => 6.3.5

Severity

annoyance

Additional Information

No response

Start with the failing src/hooks.server.test.ts reproduction and compare the working SvelteKit v2.21.2 version. Trace the generated handler through node_modules/@sveltejs/kit/src/exports/hooks/sequence.js and get_request_store in src/exports/internal/event.js. Done means direct server-hook testing no longer raises the request-store error, with regression coverage for the reported case.