test.js

describe("ZK", function () {
  it("should process", async () => {
    const secret = 42;
    const input = { secret };
    const output = secret * secret + 6;
    const publicSignals = [BigInt(output)];

    let { proof } = await groth16.fullProve(input, wasmPath, zkeyPath);
    const calldata = await groth16.exportSolidityCallData(unstringifyBigInts(proof), publicSignals);
    const args = JSON.parse("[" + calldata + "]");

    await zk.process(...args);
    expect(await zk.greet()).to.equal(
      "answer to the ultimate question of life, the universe, and everything",
    );
  });