How can I instantiate a FetchEvent in my test?

Hi! I'm testing my Service Worker library that accepts a

FetchEvent

FetchEvent

FetchEvent

FetchEvent as an input. In my tests of that library, I want to instantiate a

FetchEvent

FetchEvent

FetchEvent

FetchEvent to test it, but I'm getting

error: ReferenceError: FetchEvent is not defined

instead.

My compiler options are:

{
  "compilerOptions": {
    "lib": ["ES2023", "WebWorker", "deno.ns"],
    "strictNullChecks": true
  },
}

{
  "compilerOptions": {
    "lib": ["ES2023", "WebWorker", "deno.ns"],
    "strictNullChecks": true
  },
}

{
  "compilerOptions": {
    "lib": ["ES2023", "WebWorker", "deno.ns"],
    "strictNullChecks": true
  },
}

{
  "compilerOptions": {
    "lib": ["ES2023", "WebWorker", "deno.ns"],
    "strictNullChecks": true
  },
}

Deno version:

deno 2.2.10 (stable, release, aarch64-apple-darwin)
v8 13.5.212.10-rusty
typescript 5.7.3

deno 2.2.10 (stable, release, aarch64-apple-darwin)
v8 13.5.212.10-rusty
typescript 5.7.3

deno 2.2.10 (stable, release, aarch64-apple-darwin)
v8 13.5.212.10-rusty
typescript 5.7.3

deno 2.2.10 (stable, release, aarch64-apple-darwin)
v8 13.5.212.10-rusty
typescript 5.7.3

Thank you!

May 7 edit: Also asked on StackOverflow now.