HELP: Test using import from @graphprotocol/graph-ts

[NanezX]

Hello guys, hope you all good.

I'm kind of new using AssemblyScript. I use it mainly for building subgraph with the @graphprotocol/graph-ts lib, which is ok. Currently I'm working on a repository and it have some utils that I want to test. They are mainly methods to convert from like a BigInt to Bytes, handle strings, or even some other utilities.

The issue is that I'm getting an error when running the tests with imports: TypeError: WebAssembly.instantiate(): Import #1 module="conversion" error: module is not an object or function.

The code that I have is:

// assembly/index.ts
import { Bytes } from "@graphprotocol/graph-ts";

export function get_empty_byte(): Bytes {
  return Bytes.empty();
}

And the test file:

// assembly/__tests__/example.spec.ts
import { get_empty_byte } from "..";

describe("example", () => {
  it("test get_empty_byte", () => {
    let resp = get_empty_byte();
    log("get_empty_byte");
  });
});

My as-pect.asconfig.json and as-pect.config.js are exactly how the package generate them, but I also tried adding the import to the instantiate async function. I don't understand well this part, but didn't work since I got TypeError [ERR_UNKNOWN_FILE_EXTENSION]: Unknown file extension ".ts".

So, I really think that I'm doing something wrong but I can't see where or how make it work. To me make senses that it's possible to do this kind of tests, but I didn't find any example with imports (atm).

My dependencies are:

"@as-pect/cli": "^8.1.0",
"assemblyscript": "^0.27.17",
"@graphprotocol/graph-ts": "^0.31.0"

If someone could help me it will be awesome, I hope it's enough information for this. Thanks for taking time on read this and help :)

[willemneal]

Hey @NanezX, it's been a long time since I've been involved, but @jtenner, might be able to help.