solana-program-examples/basics/processing-instructions/anchor/tests/test.ts

import * as anchor from "@coral-xyz/anchor";
import { ProcessingInstructions } from "../target/types/processing_instructions";

describe("custom-instruction-data", () => {
  const provider = anchor.AnchorProvider.env();
  anchor.setProvider(provider);
  const program = anchor.workspace
    .ProcessingInstructions as anchor.Program<ProcessingInstructions>;

  it("Go to the park!", async () => {
    // Again, Anchor makes it super simple.
    //
    await program.methods.goToPark("Jimmy", 3).accounts({}).rpc();
    await program.methods.goToPark("Mary", 10).accounts({}).rpc();
  });
});