@mailprotector/haraka-plugin-secrets-manager/test/index.spec.js

A Haraka plugin for parsing config files with EJS to inject environment variables into config files on initialize

const { readFileSync, writeFileSync } = require('fs');
const { load_secrets, load_secrets_test, register } = require('../index');

describe('register', () => {
  test('registers plugin and loads config', () => {
    const registerHookMock = jest.fn(() => {});

    class TestClass  {
      constructor() {
        this.register_hook = registerHookMock;
      }
    };

    testFunc = new TestClass();
    testFunc.register = register;
    testFunc.register();

    expect(registerHookMock.mock.calls[0][0]).toEqual('init_master');
    expect(registerHookMock.mock.calls[0][1]).toEqual('load_secrets');
    expect(registerHookMock.mock.calls[0][3]).toEqual(undefined);
    expect(registerHookMock.mock.calls[1]).toEqual(undefined);
  });
});

describe('load_secrets', () => {
  test('modifies the files with the correct values', testComplete => {
    process.env.TESTING = 'testah';
    process.env.CONFIG_PATH = './test/config'

    const logerror = msg => {
      // console.log(msg);
    };

    const connection = { logerror };

    const fsMock = {
      writeFileSync: jest.fn((path, contents) => ('new-contents')),
      readdirSync: jest.fn((path, settings) => ([
        { name: 'filename1', isFile: () => (true) },
        { name: 'filename2', isFile: () => (true) }
      ]))
    };

    const ejsMock = {
      renderFile: jest.fn((filePath, model, cb) => {
        cb(null, 'ejs-contents');
      })
    };

    const next = () => {
      expect(fsMock.readdirSync.mock.calls[0][0]).toEqual(`./test/config`);
      expect(fsMock.writeFileSync.mock.calls[0][0]).toEqual(`./test/config/filename1`);
      expect(fsMock.writeFileSync.mock.calls[0][1]).toEqual('test1');
      expect(fsMock.writeFileSync.mock.calls[1][0]).toEqual(`./test/config/filename2`);
      expect(fsMock.writeFileSync.mock.calls[1][1]).toEqual('test2');
      testComplete();
    }

    class TestClass  {
      loginfo(msg) {
        // console.log(msg);
      }
    };
    testFunc = new TestClass();
    testFunc.load_secrets = load_secrets_test(fsMock, ejsMock);

    testFunc.load_secrets(next, connection);
  });
});