Migration form karate 0.9.2 to 0.9.3 Issue - javascript evaluation failed

问题

karate-config.js has config = karate.callSingle('classpath:token-read.js', config);
Javascript function on token-read.js is

function fn(config) {
  var userAccessToken = Java.type("com.OAuth2Token");
  config['OAuth2'] = {
    adminUser: function () {
      return userAccessToken.getAuthorizationHeader(name, url, users, "ADMIN");
    },
  };
  return config;
}

Feature file code is as below

Feature: Search data

  Scenario: Sample
    Given url url
    Given path '/data'
    And header Authorization = OAuth2.adminUser() //  Using javascript fun here
    And param request = {"up":10}
    And print response
    When method GET
    Then status 200

Getting error javascript evaluation failed: OAuth2.adminUser(), TypeError: OAuth2.adminUser is not a function in <eval> at line number 1

Above feature file is working fine with karate 0.9.2 , but not working with 0.9.3

回答1:

Please read this section of the docs: https://github.com/intuit/karate/tree/develop#restrictions-on-global-variables

Reproducing here:

Non-JSON values such as Java object references or JS functions are supported only if they are at the "root" of the JSON returned from karate-config.js. So this below will not work:

function fn() {
  var config = {};
  config.utils = {};
  config.utils.uuid = function(){ return java.util.UUID.randomUUID() + '' };
  // this is wrong, the "nested" uuid will be lost
  return config;
}

The recommended best-practice is to move the uuid function into a common feature file following the pattern described here:

function fn() {
  var config = {};
  config.utils = karate.call('utils.feature')
  return config;
}

But you can opt for using karate.toMap() which will "wrap" things so that the nested objects are not "lost":

function fn() {
  var config = {};
  var utils = {};
  utils.uuid = function(){ return java.util.UUID.randomUUID() + '' };
  config.utils = karate.toMap(utils);
  return config;
}

You may need to upgrade to 0.9.5.RC4 for some of this to work, so do try.

来源：https://stackoverflow.com/questions/59038178/migration-form-karate-0-9-2-to-0-9-3-issue-javascript-evaluation-failed

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karate