Microservices Pain: Testing
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The document discusses microservices architecture, emphasizing the philosophy behind it and the challenges in testing microservices. It contrasts different testing methodologies such as classical TDD and mockist TDD, while also exploring design patterns like entity-oriented and flow-oriented microservices. Additionally, it addresses the orchestration of testing environments using tools like Docker Compose and the complexities involved in testing service interactions.
Microservices Pain: Testing
- 2. David Dawson CEO GoMicro.Services London Microservices User Group Founder & Lead david.dawson@gomicro.services @davidthecoder
- 4. Isolation
- 5. Aspiration
- 14. All done?
- 15. What Pains You?
- 16. Testing?
- 20. A brief history of Testing
- 23. Aka Stateist TDD
- 24. What does this look like?
- 31. What does this look like?
- 36. Microservices?
- 43. 1 * GET /awesome 2 * POST /hello
- 44. 1 * GET /awesome 2 * POST /hello Start up Mock Dependencies Start service under test Exercise ServiceExercise Service Verify Mock Interactions
- 45. 1 * GET /awesome 2 * POST /hello
- 46. Client Libraries, then Mock Pro Simple, In Process Con Doesn't exercise the full Stack
- 47. Protocol Replay Pro Simple, In Process Con Schema Drift Not Really a Mock https://github.com/ozeias/go-vcr https://relishapp.com/vcr/vcr/docs http://freeside.co/betamax/
- 48. Mock Processes Pro Full Stack Con Schema Drift Hard to Orchestrate The Network Hates You
- 49. Remote Control Set Expectations Verify Expectations Making Mock (/ Stub) Processes
- 50. Orchestrating Docker Compose docker-compose.yml rabbitmq: image: rabbitmq:3.5.4-management service-under-test: build: . links: - rabbitmq test-with-deps: image: simplicityitself/test-with-deps links: - rabbitmq volumes: - ./test-results:/app/test-results/
- 51. Orchestrating Docker Compose docker-compose.yml rabbitmq: image: rabbitmq:3.5.4-management service-under-test: build: . links: - rabbitmq test-with-deps: image: simplicityitself/test-with-deps links: - rabbitmq volumes: - ./test-results:/app/test-results/
- 52. Orchestrating Docker Compose docker-compose.yml rabbitmq: image: rabbitmq:3.5.4-management service-under-test: build: . links: - rabbitmq test-with-deps: image: simplicityitself/test-with-deps links: - rabbitmq volumes: - ./test-results:/app/test-results/
- 53. Orchestrating Docker Compose docker-compose.yml rabbitmq: image: rabbitmq:3.5.4-management service-under-test: build: . links: - rabbitmq test-with-deps: image: simplicityitself/test-with-deps links: - rabbitmq volumes: - ./test-results:/app/test-results/
- 54. Orchestrating Docker Compose > docker-compose run test-with-deps > docker-compose stop > ls test-results/ xunit.xml
- 57. Events
- 60. Order Placed Payment Taken Email Sent Events
- 61. Order Stream Notification Stream Payment Stream Events
- 67. Order Stream Events An Entity
- 71. Order Stream Notification Stream Payment Stream Events
- 72. Order Stream Notification Stream Payment Stream
- 73. Order Stream Notification Stream Payment Stream
- 74. Order Stream Notification Stream Payment Stream
- 75. Order Stream Notification Stream Payment Stream
- 77. Order Placed Payment Taken Email Sent Email Sent
- 78. Dependencies
- 79. Dependencies Order Placed Payment Taken Email Sent Email Sent
- 80. Dependencies Order Placed Order Creation Service Payment Taken Payment Processor Email Sent Email Gateway Email Sent Email Gateway
- 81. Order Placed Payment Taken Email Sent Email Sent Testing Order Placed
- 82. Testing Order Placed Payment Taken Email Sent Email Sent A TEST
- 83. Testing! Order Placed Email Sent A TEST Mock Payment Service?
- 84. Order Stream Notification Stream Payment Stream
- 85. Testing! Order Placed Payment Taken Email Sent Email Sent A TEST
- 86. Testing! Order Placed Payment Taken Email Sent Email Sent
- 87. Set initial event chain state Run service Assert event chain end state Event based test
- 88. Event Store Event Chains (Graph DB is good) Best for testing system state mutation (commands) Event based test You'll need...
Editor's Notes
- #4: Isolation! Aspiration Evolution Ability to change
- #6: Dan North Bounded/ Centred Community
- #12: Not the solution! An approach to solving the problem. Tools to engage the world Sounds familiar.
- #13: h
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- #87: Isolate an algorithmic, functional piece. More suited to functional style, rather than encapsulated OO/ Entity style
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