Source: Expression.js

  1. const _ = require("lodash");
  2. const Util = require("../util/Util");
  4. /**
  5.  * Represents request expressions used to modify the request before doing the test
  6.  */
  7. class Expression {
  8.     /**
  9.      *
  10.      * @param {object} element - one of the elements generated during the yaml parsing
  11.      * @return {boolean}
  12.      */
  13.     static isExpression(element) {
  14.         const keys = Object.keys(element);
  15.         return (keys.length > 0 &&
  16.             (keys[0].startsWith("request") || keys[0].startsWith("set "))
  17.         );
  18.     }
  20.     /**
  21.      *
  22.      * @param {object} element - one of the elements generated during the yaml parsing
  23.      */
  24.     constructor(element) {
  25.         this._path = Object.keys(element)[0];
  26.         this._value = element[this._path];
  27.     }
  29.     /**
  30.      * the path of the request property we want to modify
  31.      * @return {string}
  32.      */
  33.     get path() {
  34.         return this._path;
  35.     }
  37.     /**
  38.      * the value we want to set in the request property path
  39.      * @return {string}
  40.      */
  41.     get value() {
  42.         return Util.cleanValue(this._value);
  43.     }
  45.     /**
  46.      * Replace the property indicated by the expression path with the value indicated
  47.      * @param {object} json - request that we are going to modify
  48.      */
  49.     apply(json) {
  50.         // Chop off the mandatory request at the front
  51.         const paths = this.path.split(".").slice(1);
  52.         const path = paths.join(".");
  53.         if (path) {
  54.             _.set(json, path, this.value);
  55.         }
  56.     }
  58.     /**
  59.      * Returns the interaction part of a yaml object
  60.      * {input: string, expect: object[]}
  61.      * @return {object}
  62.     */
  63.     toYamlObject() {
  64.         return {
  65.             path: this.path,
  66.             value: this.value,
  67.         };
  68.     }
  69. }
  71. module.exports = Expression;