serverless-offline/test/support/ServerlessBuilder.js

Emulate AWS λ and API Gateway locally when developing your Serverless project

'use strict';

const _ = require('lodash');
const sinon = require('sinon');

module.exports = class ServerlessBuilder {
  constructor(serverless) {
    const serverlessDefaults = {
      service: {
        provider: {
          name: 'aws',
          stage: 'dev',
          region: 'us-east-1',
          runtime: 'nodejs4.3',
        },
        functions: {},
        getFunction(functionName) {
          return this.functions[functionName];
        },
      },
      cli: {
        log: sinon.stub(),
      },
      version: '1.0.2',
      config: {
        servicePath: '',
      },
    };
    this.serverless = _.merge(serverlessDefaults, serverless);
    this.serverless.service.getFunction = this.serverless.service.getFunction.bind(this.serverless.service);
  }

  addFunction(functionName, functionConfig) {
    this.serverless.service.functions[functionName] = functionConfig;
  }

  toObject() {
    return this.serverless;
  }
};