Httptest.ResponseRecorder
httptest.ResponseRecorder is a Go testing type that records an HTTP handler’s status, headers, and body for inspection.
Learn Go with Pocket-Sized Projects
ResponseRecorder is a Go HTTP testing utility that records the status, headers, and body produced by a handler.
- How it is used
- Tests HTTP handlers without starting a server by recording their responses for assertions.
- How deep it goes
- Works through recorder setup and response assertions, then reuses it for a path-parameter test; does not examine recorder internals.
- Examples
- Checks a POST `/games` response and a `/tick/` response with a prepared path value.
- What you can do after
- Apply it via `httptest.NewRecorder` to assert handler status, headers, or body without running the service.
Read how Learn Go with Pocket-Sized Projects explains httptest.ResponseRecorder →
Go in Action, Second Edition
httptest.ResponseRecorder is a Go test utility that records an HTTP handler's response for inspection.
- How it is used
- Tests HTTP handlers by capturing responses in memory instead of contacting a running server.
- 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 you can do after
- Diagnose handler behavior by asserting captured status codes and response bodies in Go tests.
Read how Go in Action, Second Edition explains 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.
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