cucumber从入门到放弃

Cucumber 从入门到放弃

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建立一个存放project的文件夹: mkdir my-first-project
，个人建议先建立一个cucumber-test文件夹，之后的project都在这个文件夹下在my-first-project目录下，初始化当前project: cucumber –init
在my-first-project目录下，执行cucumber

执行结果： 0 scenarios 0 steps 0m0.000s

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在features目录下，创建feature文件

Feature: Adding Scenario: Add two numbers Given the input “2+2” When the calculator is run Then the output should be “4”在my-first-project目录下，执行cucumber

执行结果： Feature: Adding

Scenario: Add two numbers # features/adding.feature:2 Given the input “2+2” # features/adding.feature:3 When the calculator is run # features/adding.feature:4 Then the output should be “4” # features/adding.feature:5

1 scenario (1 undefined) 3 steps (3 undefined) 0m0.013s

You can implement step definitions for undefined steps with these snippets:

Given(“the input {string}”) do |string| pending # Write code here that turns the phrase above into concrete actions end

When(“the calculator is run”) do pending # Write code here that turns the phrase above into concrete actions end

Then(“the output should be {string}”) do |string| pending # Write code here that turns the phrase above into concrete actions end

运行cucumber命令时，会扫描features中的文件，每个feature中包含多个Scenario, Scenario中的step会调用step definitions中的编写的测试代码，以上错误，就是因为step definitions中没有feature文件对应的定义代码

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在step_definitions目录下创建一个ruby文件，内容如下：

Given(/^the input “([^”]*)”$/) do |input| @input = input end

When(/^the calculator is run$/) do @output = ruby features/support/calc.rb #{@input} raise(‘Command failed’) unless $?.success? end

Then(/^the output should be “([^”]*)”$/) do |expected_output| puts @expected_output

未完待续。。。