007_conditionals.test.js

import { instantiate } from "./utils/instantiate.mjs";
import {
  assert,
  matchObjectShape,
  setSuccess,
  test,
} from "./utils/test-runner.mjs";
import { getWasm } from "./utils/getWasm.mjs";

const wasmBytes = await getWasm(import.meta.url);

setSuccess("Congrats! Continue onto 008_loops.wat");

test("exports isEven and getNum", async () => {
  const exports = await instantiate(wasmBytes);
  assert(
    matchObjectShape(exports, {
      isEven: Function,
      getNum: Function,
    }),
    "does not export all of: isEven and getNum"
  );
});

test("isEven works", async () => {
  const exports = await instantiate(wasmBytes);
  const { isEven } = exports;
  assert(isEven(42) === 1, "isEven is not returning 1");
  assert(isEven(43) === 0, "isEven is not returning 0");
});

test("getNum works", async () => {
  const exports = await instantiate(wasmBytes);
  const { getNum } = exports;
  assert(getNum(42) === 42, "getNum is not returning 42");
  assert(getNum(43) === 100, "getNum is not returning 100");
});