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Install counterfeiter with Homebrew
Tool for generating self-contained, type-safe test doubles in go. Version 6.12.2 via Homebrew; verified 2026-06-22.
install
Additional install commands
overview
Package summary
Tool for generating self-contained, type-safe test doubles in go
Project links
Commands and aliases
- counterfeiter
history
Project history and usage
counterfeiter is a Go code generator for creating self-contained, type-safe test doubles from interfaces.
Project history
The public repository was created in 2014. Its README frames the project around a Go-specific testing problem: fake implementations are useful for unit tests but cannot be generated automatically at runtime in Go.
The project has continued through a v6 release line, with current documentation using Go modules and Go tool dependencies.
Adoption history
counterfeiter's documented workflow follows Go ecosystem conventions: add it as a tool dependency, place `go:generate` or `counterfeiter:generate` directives near interfaces, and regenerate fakes with `go generate`.
The README notes that the project has largely been maintained by the community, which fits its role as a small but durable testing utility rather than a framework-owned generator.
How it is used
Typical use is to generate fakes for interfaces in the same module or for third-party interfaces, then import the generated `foofakes` package in tests to inspect call counts, arguments, and stubbed return values.
Why package nerds care
For package maintainers, counterfeiter is a good example of a Go CLI whose preferred installation changed with Go tooling: Homebrew can ship a binary, but the upstream docs now prefer module-pinned tool dependencies for reproducible generation.
Timeline
- 2014: Public GitHub repository created.
- 2024: v6.8.x through v6.11.x releases published.
- 2026: v6.12.2 release published.
Related projects
- go generate
- Go modules
- Go tool dependencies
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
counterfeiter | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version6.12.2
manager updated2026-06-22
local dataok
upstreamcurrent
latest detectedv6.12.2
https://github.com/maxbrunsfeld/counterfeiter
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:counterfeiter |
|---|---|
| Version | 6.12.2 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/counterfeiter |
| Homepage | https://github.com/maxbrunsfeld/counterfeiter |
| Repository | https://github.com/maxbrunsfeld/counterfeiter |
| Upstream docs | https://github.com/maxbrunsfeld/counterfeiter#readme |
| License | MIT |
| Source archive | https://github.com/maxbrunsfeld/counterfeiter/archive/refs/tags/v6.12.2.tar.gz |
| Last updated | 2026-06-22T14:03:05-07:00 |
| Pulse | updated |
| Dependencies | go |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | counterfeiter |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- package relationship graph
- package version freshness
- package-page enrichment