httptest.ResponseRecorder captures an HTTP handler’s response during a test, allowing assertions on status codes and response bodies without starting a real server. section 8.6
Httptest.ResponseRecorder
httptest.ResponseRecorder is a Go test utility that records an HTTP handler's response for inspection.
How Go in Action, Second Edition covers it
- How deep it goes
- Demonstrates construction, ServeHTTP execution, status assertions, body reads, and table-driven reuse.
- Examples
- Uses GET and POST handlers returning hello messages, status codes, request bodies, and invalid-method responses.
- What it assumes
- Assumes familiarity with Go HTTP handlers, requests, responses, and the testing package.
- What you can do after
- Diagnose handler behavior by asserting captured status codes and response bodies in Go tests.
- How it connects
- Connects HTTP handlers with HTTP requests, response bodies, status codes, table-driven testing, and ServeMux routing.
Also explained in
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Learn Go with Pocket-Sized ProjectsResponseRecorder is a Go HTTP testing utility that records the status, headers, and body produced by a handler.
Compare how 2 books explain httptest.ResponseRecorder →
Related concepts
- http.ResponseWriterkind of · http.ResponseWriter is the Go interface through which an HTTP handler constructs a response by writing its headers, status, and body.
This explainer was generated by Manning's knowledge graph from the text of Go in Action, Second Edition. The section links point to the parts of the book it draws on.