jest-runner-stylelint/src/watchFixPlugin.test.js

Stylelint runner for Jest

jest.useFakeTimers();

let WatchFixPlugin;
let configOverrides;

describe("watchFixPlugin", () => {
  beforeEach(() => {
    jest.resetModules();
    configOverrides = require("./configOverrides");
    WatchFixPlugin = require("./watchFixPlugin");
  });

  it("shows the correct prompt", async () => {
    const stdout = { write: jest.fn() };
    const config = {};
    const plugin = new WatchFixPlugin({ stdout, config });
    expect(plugin.getUsageInfo()).toEqual({
      key: "F",
      prompt: "override Stylelint --fix",
    });

    await plugin.run(plugin);

    expect(plugin.getUsageInfo()).toEqual({
      key: "F",
      prompt: "toggle Stylelint --fix (enabled)",
    });

    await plugin.run(plugin);

    expect(plugin.getUsageInfo()).toEqual({
      key: "F",
      prompt: "toggle Stylelint --fix (disabled)",
    });
  });

  it("overrides the setting in configOverrides after each invocation", async () => {
    const stdout = { write: jest.fn() };
    const config = {};
    const plugin = new WatchFixPlugin({ stdout, config });
    expect(configOverrides.getFix()).toBeUndefined();

    await plugin.run(plugin);

    expect(configOverrides.getFix()).toBe(true);

    await plugin.run(plugin);

    expect(configOverrides.getFix()).toBe(false);
  });

  it("can customize the key", () => {
    const stdout = { write: jest.fn() };
    const config = { key: "z" };
    const plugin = new WatchFixPlugin({ stdout, config });
    expect(plugin.getUsageInfo()).toEqual({
      key: "z",
      prompt: "override Stylelint --fix",
    });
  });
});