@applicaster/zapplicaster-cli/src/commands/migrateZappPlugin/__tests__/updatePackageJson.test.js

CLI Tool for the zapp app and Quick Brick project

const { updatePackageJson } = require("../updatePackageJson");

jest.mock("path", () => ({
  resolve: jest.fn(() => "./__tests__/testPackage.json"),
}));

jest.mock("../../../file", () => ({
  writeJsonToFile: jest.fn((path, packageJson) => {
    if (packageJson.name === "fail") {
      console.log("throwing writeJsonToFile");
      throw new Error("writeJsonToFile failed");
    }

    return Promise.resolve();
  }),
}));

const cwd = "path/to/cwd";
const name = "module-name";
const main = "./export.js";

const config = {
  cwd,
  name,
};

const { resolve } = require("path");
const { writeJsonToFile } = require("../../../file");

const testPackageJson = require("./testPackage.json");

describe("updatePackageJson", () => {
  it("update the packageJson name & main properties", async () => {
    await updatePackageJson(config);

    expect(writeJsonToFile).toHaveBeenCalledWith(resolve(cwd, "package.json"), {
      ...testPackageJson,
      name,
      main,
    });

    expect.assertions(1);
  });

  it("throws if writeJsonToFileThrows", async () => {
    await expect(
      updatePackageJson({ cwd, name: "fail" })
    ).rejects.toThrowErrorMatchingSnapshot();
  });
});