javascript - 为什么 Cucumber 不执行我的步骤定义？

Question

在 Windows 上工作，我安装了 Ruby 和 Ruby DevKit 来与 Cucumber 一起工作。现在我有以下基本设置:

/app
   /features
       example.feature
       /step_definitions
           example.steps.js

在 example.feature 文件中我有:

Feature: This is an example feature
    In order to learn Cucumber
    As a developer
    I want to make this feature pass

    Scenario: wrote my first scenario
        Given a variable set to 1
        When I increment the variable by 2
        Then the variable should contain 3

在 example.step.js 文件中我有:

'use strict';

module.exports = function () {
    this.givenNumber = 0;

    this.Given(/^a variable set to (\d+)$/, function(number, next) {
        this.givenNumber = parseInt(number);
        next();
    });

    this.When(/^I increment the variable by (\d+)$/, function (number, next) {
        this.givenNumber = this.givenNumber + parseInt(number);
        next();
    });

    this.Then(/^the variable should contain (\d+)$/, function (number, next) {
        if (this.givenNumber != number)
            throw(new Error("This test didn't pass, givenNumber is " + this.givenNumber + " expected 0"));
        next();
    });
};

现在，当我从/app 目录运行“cucumber”时，我不断收到以下输出:

1 scenario (1 undefined)
3 steps (3 undefined)
0m0.004s

我尝试移动文件、添加 --require 选项等，但似乎没有任何帮助。

有什么想法吗？

Answer 1

显然这不能使用“cucumber”命令直接执行。使用 grunt 和 grunt-cucumber 进行设置任务似乎按预期工作:

我的 Gruntfile.js

module.exports = function (grunt) {
    grunt.initConfig({
        pkg: grunt.file.readJSON('package.json'),
        cucumberjs: {
            src: 'features',
            options: {
                steps: 'features/step_definitions',
                format: 'pretty'
            }
        }
    });


    grunt.loadNpmTasks('grunt-cucumber');

    grunt.registerTask('default', ['cucumberjs']);
};

另外:如果您使用 Protractor 。它内置了 Cucumber。只需为 Protractor 创建正确的配置(protractor.conf.js):

exports.config = {

    specs: [
        //'e2e/features/*.feature'
        '**/*.feature'
    ],

    capabilities: {
        'browserName': 'chrome'
    },

    baseUrl: 'http://localhost:9000/',

    framework: 'cucumber'
}