storybook/scripts/release/__tests__/is-pr-frozen.test.ts

import path from "path";
import { run as isPrFrozen } from "../is-pr-frozen";

jest.mock('fs-extra', () => require('../../../code/__mocks__/fs-extra'));
jest.mock('../utils/get-github-info');

const fsExtra = require('fs-extra');
const simpleGit = require('simple-git');
const { getPullInfoFromCommit } = require('../utils/get-github-info');

const CODE_DIR_PATH = path.join(__dirname, '..', '..', '..', 'code');
const CODE_PACKAGE_JSON_PATH = path.join(CODE_DIR_PATH, 'package.json');

fsExtra.__setMockFiles({
  [CODE_PACKAGE_JSON_PATH]: JSON.stringify({ version: '1.0.0' }),
});

describe('isPrFrozen', () => {

  beforeEach(() => {
    jest.clearAllMocks();
  });

  it('should return true when PR is frozen', async () => {
    getPullInfoFromCommit.mockResolvedValue({
      labels: ['freeze']
    });
    await expect(isPrFrozen({patch: false})).resolves.toBe(true);
  });

  it('should return false when PR is not frozen', async () => {
    getPullInfoFromCommit.mockResolvedValue({
      labels: []
    });
    await expect(isPrFrozen({patch: false})).resolves.toBe(false);
  });

  it('should look for patch PRs when patch is true', async () => {
    getPullInfoFromCommit.mockResolvedValue({
      labels: []
    });
    await isPrFrozen({patch: true});

    expect(simpleGit.__fetch).toHaveBeenCalledWith('origin', 'version-from-patch-1.0.0', {'--depth': 1});
  });
  
  it('should look for prerelease PRs when patch is false', async () => {
    getPullInfoFromCommit.mockResolvedValue({
      labels: []
    });
    await isPrFrozen({patch: false});

    expect(simpleGit.__fetch).toHaveBeenCalledWith('origin', 'version-from-prerelease-1.0.0', {'--depth': 1});
  });
});