next-slicezone/tests/resolver.test.js

A component that maps other components to Prismic slices

import fs from "fs";
import { Volume } from "memfs";

import { createResolver } from "../src/features/resolver";

jest.mock(`fs`, () => {
  const fs = jest.requireActual(`fs`);
  const unionfs = require(`unionfs`).default;
  unionfs.reset = () => {
    unionfs.fss = [fs];
  };
  return unionfs.use(fs);
});

afterEach(() => {
  fs.reset();
});

test("it correctly generates imports", async () => {
  fs.use(
    Volume.fromNestedJSON(
      {
        "sm.json": `{ "libraries": ["@/slices", "@/some/slices", "essential_slices"] }`,
        node_modules: {
          essential_slices: {
            MySlices: {
              "index.js": 'console.log("hello")',
            },
          },
        },
        slices: {
          MySlice: {
            "index.js": 'console.log("hello")',
          },
        },
        some: {
          slices: {
            MySlice2: {
              "index.js": 'console.log("hello")',
            },
          },
        },
      },
      "/test"
    )
  );

  await createResolver("/test/sm.json");
  const resolver = fs.readFileSync("/test/sm-resolver.js", "utf-8");
  expect(resolver.includes("import * as Slices from './slices'")).toBe(true);
  expect(
    resolver.includes("import * as Some_slices from './some/slices'")
  ).toBe(true);
  expect(
    resolver.includes(
      "import { Slices as EssentialSlices } from 'essential_slices'"
    )
  ).toBe(true);
});