dbServer/project/__mocks__/model.js

import samples from '../_sampleData.js'

class ProjectMock {
  constructor (data) {
    for (let prop in data) {
      this[prop] = data[prop]
    }
    // use this switch to simulate save errors.
    this._saveError = false
    // use this switch to simulate remove errors.
    this._removeError = false
  }

  static findOne (criteria, callback) {
    const { id } = criteria
    // Find only the entry with id 58d3d6883d34293254afae42
    if (id === '58d3d6883d34293254afae42') {
      callback(undefined, samples[0])
      return
    }
    // else return 404
    callback(Error('item not found'), undefined)
  }

  static find (criteria, options, callback) {
    const { limit, offset } = options
    // apply criteria
    const sampleSlice = samples.slice(offset, offset + limit)
    // return the array
    if (sampleSlice) {
      callback(undefined, sampleSlice)
      return
    }
    // if nothing can be shown, return 404
    callback(Error('no items found'), undefined)
  }

  save (callback) {
    //
  }

  remove (callback) {
    //
  }
}

export default ProjectMock