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LEARNING.md

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Learning Outcomes

Step Title Concept Covered Learning objectives Further Reading
step 1 Create our consumer before the Provider API even exists Consumer-driven design
  • Understand use case
step 2 Write a unit test for our consumer -
  • How to write a basic unit test for an HTTP Client
  • Understand how a unit test is unable to catch certain integration issues
step 3 Write a Pact test for our consumer Consumer side pact test
  • Understand basic Consumer-side Pact concepts
  • Demonstrate that Pact tests are able to catch a class of integration problems
step 4 Verify the consumer pact with the Provider API (Gradle) Provider side pact test
  • Learn how to verify using a Gradle Task
  • Understand basic Provider-side Pact concepts
  • Place provider side testing in a broader testing context (e.g. where it fits on the pyramid)
step 5 Verify the consumer pact with the Provider API (Unit test) Provider side pact test
  • Learn how to verify using JUnit
  • Understand basic Provider-side Pact concepts
  • Place provider side testing in a broader testing context (e.g. where it fits on the pyramid)
step 6 Fix the consumer's bad assumptions about the Provider Humans talking to humans (collaboration)
  • Understand that a tool facilitates collaboration, it doesn't replace it
  • Understand "Matchers" to avoid test data brittleness
    step 7 Fix the date format in the Provider Humans talking to humans (collaboration)
    • Understand that a tool facilitates collaboration, it doesn't replace it
    step 8 Test missing query parameter Non-happy path testing
    • Test variations in API usage
    step 9 Verify provider with missing query parameter Service evolution
    • Understand benefits of consumer-driven design
    step 10 Update provider to handle missing query parameter Service evolution
    • Understand benefits of consumer-driven design
    step 11 Write a pact test for 404 (no data) in consumer Testing API invariants
    • Understand how we can test "stateful" APIs without having to create complex, sequential API calls
    step 12 Update Provider API to handle 404 case Provider States
    • How Pact deals with "stateful" interactions, via the concept of "Provider States"
    step 13 Implement a broker workflow for integration with CI/CD Automation
    • Understand how to use Pact in a CI and CD workflow