One set of tests for each version of a microservices?

With microservices do I need to create tests folders for each version of each service like this:

• Services
  • users
    • v1
      • src
      • tests
        • functional
        • unit
        • integration
    • v2
      • src
      • tests
        • functional
        • unit
        • integration
    • v3
      • src
      • tests
        • functional
        • unit
        • integration

Or it is like this:

• Services
  • users
    • v1
      • src
    • v2
      • src
    • v3
      • src
    • tests
      • functional
      • unit
      • integration

or like this...?

• Services
  • users
    • v1
    • v2
    • v3
  • tests
    • functional
    • integration
    • unit

or....

• Services
  • users
    • v1
    • v2
    • v3
• Tests
  • functional
  • integration
  • unit