RSpec--文件执行顺序

1. 先加载 spec_helper 文件， spec_helper中的可直接运行部分执行
2. 再顺序加载所有 *_spec.rb 文件， *_spec文件中的可直接执行部分执行
3. 执行 spec_helper中的before(:suite)
4. 执行 spec_helper中的before(:context)，再执行文件 1_spec.rb中的，before(:context)-----类似于JUnit5中先父类的注解@BeforeAll再执行本类的@BeforeAll注解。
5. 执行 spec_helper中的before(:example)，再执行文件 1_spec.rb中的before(:example)----类似于先执行父类的@BeforeEach再执行本类的@BeforeEach
6. 执行 1_spec.rb 文件中的，it测试用例
7. 执行 1_spec.rb中的after(:example)，再执行spec_helper中的after(:example)-----类似于先执行本类的@AfterEach再执行父类的@AfterEach
8. 执行 1_spec.rb中的after(:context)，再执行spec_helper中的after(:context)---类似于先执行本类的@AfterAll再执行父类的@AfterAll
9. 执行文件 2_spec.rb（重复4，5，6，7，8）
10. 执行 spec_helper 中的，after(:suite)

如下例子

# spec_helper.rb
puts "AAA1"

RSpec.configure do |config|

  config.before(:suite) do
    puts "Begin to run all cases..."
  end

 config.after(:suite) do
    puts "All cases done..."
  end

  puts "AAA2"

  # 父类中对每个测试用例集设置钩子
  config.before(:context) do
    puts 'before a context defined in spec_helper'
  end

  config.after(:context) do
    puts 'after a context defined in spec_helper'
  end


  # 父类中对每个测试用例设置钩子
  config.before(:example) do
    puts 'before a testcase defined in spec_helper'
  end

  config.after(:example) do
    puts 'after a testcase defined in spec_helper'
  end

end

# 1_spec.rb
describe 'Test' do
  puts "进入Spec文件"

  # 某个spec文件中设置测试用例集的钩子
  before(:context) do
    puts "before a context defined in 1_spec"
  end

  after(:context) do
    puts "after a context defined in 1_spec"
  end

  # 某个spec文件中设置测试用例的钩子
  before(:example) do
    puts "before a testcase defined in 1_spec"
  end

  after(:example) do
    puts "after a testcase defined in 1_spec"
  end



  it 'test case1' do
    puts "running testcase1"
  end

  context 'contextAA' do
    puts "a context"
    it 'test case2' do
      puts "running testcase2"
    end
  end
end



## 执行结果
# AAA1
# AAA2
# 进入Spec文件
# a context

# Begin to run all cases...   


# Test (就是describe名称)
# before a context defined in spec_helper
# before a context defined in 1_spec

# before a testcase defined in spec_helper
# before a testcase defined in 1_spec
# running testcase1
# after a testcase defined in 1_spec
# after a testcase defined in spec_helper
#   test case1(就是it的名称也可以是 . )

#   contextAA
# before a testcase defined in spec_helper
# before a testcase defined in 1_spec
# running testcase2
# after a testcase defined in 1_spec
# after a testcase defined in spec_helper
#     testcase2

# after a context defined in 1_spec
# after a context defined in spec_helper


# All cases done...