Httptest
httptest is a Go standard-library package providing utilities for testing HTTP clients, servers, handlers, requests, and responses.
Learn Go with Pocket-Sized Projects
httptest is Go's standard-library package for testing HTTP clients and servers with in-memory or local test infrastructure.
- How it is used
- Provides local HTTP infrastructure for testing clients that fetch remote data and handlers that return JSON or HTML.
- How deep it goes
- Works through temporary-server setup and direct handler assertions, but does not develop a comprehensive HTML comparison strategy.
- Examples
- Tests an exchange-rate client against a temporary server, a game-creation handler with a recorder, and an HTML index against a fixture.
- What you can do after
- Apply it via httptest.NewServer and httptest.NewRecorder to test HTTP clients and handlers without relying on production endpoints.
Read how Learn Go with Pocket-Sized Projects explains httptest →
Go by Example
The httptest package is Go's standard-library package for testing HTTP clients and servers with utilities such as in-memory test servers, requests, and responses.
- How it is used
- Tests HTTP clients and handlers with standard-library test servers, requests, and response capture.
- How deep it goes
- Explains Server setup through HandlerFunc, URL retrieval, and Close; identifies NewRequest and NewRecorder without detailed assertion workflows.
- Examples
- Uses an HTTP client against a local test server and a closure converted into a Handler.
- What you can do after
- Apply it via httptest to run a client against a real test server and exercise handlers with real HTTP types.
100 Go Mistakes and How to Avoid Them
httptest is a Go standard-library package that provides facilities for testing HTTP clients and servers.
- How it is used
- Tests HTTP handlers directly or exercises clients through a fast local HTTP server.
- How deep it goes
- Explains request construction, response recording, server lifecycle, assertions, and the boundary between handler and transport testing.
- Examples
- Uses a greeting handler, recorded headers and body, and a duration client receiving a 314-second JSON response.
- What you can do after
- Apply it via Go's httptest package to test handlers or clients without Docker-based mock infrastructure.
Read how 100 Go Mistakes and How to Avoid Them explains httptest →
Go in Action, Second Edition
httptest is a Go standard-library package that provides utilities for testing HTTP servers and handlers.
- How it is used
- Tests HTTP handlers and endpoints by isolating requests, recording responses, and exercising temporary servers.
- How deep it goes
- Demonstrates handler tests, table-driven cases, routing, and temporary servers without covering broader HTTP server internals.
- Examples
- Uses GET and POST hello handlers, response recording, request bodies, status assertions, and an invalid-method route case.
- What you can do after
- Apply it via Go's httptest package to verify handler status codes, response bodies, methods, request bodies, and routes.
Related concepts
- serveruses · A server is a computer system or software process that receives requests from clients or other systems and provides resources, data, or services in response.
- RESTused by · REST is an architectural style for distributed hypermedia systems that organizes interactions around resources and representations through constraints including a uniform interface, stateless communication, cacheability, and layered components.
- endpointuses · An endpoint is a network-accessible address or interface through which a service exposes a resource or operation and handles requests and responses.
- net/http packageuses · The net/http package is Go’s standard-library package providing HTTP client and server implementations, requests, responses, and related functionality.
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