cucumber从入门到放弃

Cucumber 从入门到放弃

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1. 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
2. 在my-first-project目录下，初始化当前project: cucumber –init

3. 在my-first-project目录下，执行cucumber

执行结果：
0 scenarios
0 steps
0m0.000s

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1. 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”

2. 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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1. 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。。。