WireMock vs MockServer vs proxymock for API testing
Compare HTTP stubs, request verification, and recorded dependency mocks. Choose WireMock, MockServer, or proxymock for your Java API tests.
Posts about api testing
Browse 104 posts in this category
Traffic Replay Tutorial: Capture, Replay, Read Results
Capture one service's API traffic, replay it against a Kubernetes test workload, and use the report to tell a regression from a replay setup problem.
Use AI and traffic replay to test AI-generated code
Have your coding agent test AI-generated code with proxymock: capture working API traffic, replay it against changes, and inspect the results.
From Handwritten Mocks to proxymock: The Complete Loop
Part 10 of Getting Started with Mocks: use proxymock to record real API traffic, inject failures, verify side effects, and expose contract drift.
Did It Actually Send?
Part 4 of Getting Started with Mocks: the notifier stops returning a message and starts sending one, so the test needs a spy instead of a return value.
Make Failure Boring with Mocks
Part 3 of Getting Started with Mocks: the same seam, now returning refusals, timeouts and nonsense, so the failure paths finally get tested.
Mock the Wire
Part 7 of Getting Started with Mocks: a fake HTTP server finally runs the real client, so paths, headers, and parsing get tested. Java, Node, Go, Python.
Test Behavior, Not Choreography
Part 5 of Getting Started with Mocks: a test that pinned the retry schedule broke on a change no customer could notice. Here is how to rewrite it.
They Aren't All Mocks
Part 6 of Getting Started with Mocks: stub, spy, fake, mock, and dummy, sorted by what each one does. Java, Node, Go, Python.
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