# Install chart-testing with Homebrew, Nix, zypper, pacman

Testing and linting Helm charts. Version 3.14.0 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:chart-testing
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install chart-testing
```

  Evidence: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#chart-testing
```

  Evidence: nixpkgs package indexes: pkgs/by-name/ch/chart-testing/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

- zypper (92%):

```sh
sudo zypper install chart-testing
```

  Evidence: openSUSE Tumbleweed package metadata: chart-testing from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst

- pacman (92%):

```sh
sudo pacman -S ct
```

  Evidence: Arch Linux sync databases: ct from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz

## Package facts

- **Package key:** brew:chart-testing
- **Package manager:** Homebrew
- **Package manager page:** <https://formulae.brew.sh/formula/chart-testing>
- **Version:** 3.14.0
- **Source summary:** Testing and linting Helm charts
- **Homepage:** <https://github.com/helm/chart-testing>
- **Repository:** <https://github.com/helm/chart-testing>
- **Upstream docs:** <https://github.com/helm/chart-testing#readme>
- **License:** Apache-2.0
- **Source archive:** <https://github.com/helm/chart-testing.git>
- **Generated:** 2026-07-08T07:18:31+00:00

## Executables

- ct (cli)
- ct (alias)

## Dependencies

- yamale

## Build dependencies

- go

## Install behavior

- Post-install hook: not defined
- Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux

## Freshness

- Page generated: 2026-07-08
- Package-manager version: 3.14.0
- Local data: ok
- Upstream repository: https://github.com/helm/chart-testing
- info: No package-manager update timestamp was available.
- info: No cached GitHub release or tag data was available.
## Project history and usage

Chart Testing is the Helm project CLI, `ct`, for linting and testing Helm charts, especially in pull-request and CI workflows where changed charts need to be detected and validated.

### Project history

The Helm organization created the chart-testing repository in November 2017. Its README notes that v2.0.0 refactored the tool from a bash library to Go while keeping v1 parity, and GitHub release metadata shows v2.0.0 published in November 2018 and the current v3.14.0 release in October 2025.

### Adoption history

Chart Testing spread with Helm chart repository CI. The README recommends the Quay Docker image because it bundles Helm, Git, yamllint, Yamale, and kubectl; it also documents binary releases and Homebrew installation, while the input facts list Homebrew, Nix, pacman, and zypper packaging.

### How it is used

`ct` is used to list changed charts, lint charts, install charts, and run combined lint-and-install checks. Configuration is supplied by CLI flags, `CT_` environment variables, or config files, and default config lookup includes the current directory, `$HOME/.ct`, and `/etc/ct`.

### Why package nerds care

Chart Testing is package infrastructure for packages-that-are-YAML: it gives Helm chart maintainers repeatable CI checks around chart metadata, dependency linting, schema validation, Kubernetes installation, and change detection. For chart repositories, it fills the role that language package ecosystems often get from their native test and lint commands.

### Timeline

- 2017-11: Helm chart-testing repository created.
- 2018-11: v2.0.0 released after the refactor from bash library to Go.
- 2025-10: Latest upstream GitHub release metadata lists v3.14.0.

### Related projects

- Helm is the chart ecosystem that `ct` validates.
- chart-releaser is a sibling Helm tool for publishing charts after testing.
- yamllint, Yamale, kubectl, Git, and Helm are documented prerequisites in the official README.

### Sources

- <https://github.com/helm/chart-testing>
- <https://github.com/helm/chart-testing/tree/main/doc>
- <https://api.github.com/repos/helm/chart-testing>
- <https://api.github.com/repos/helm/chart-testing/releases>


## Security Notes

narrow executable package without higher-risk signals.

- **Geiger risk:** green / low
- narrow executable package without higher-risk signals


## Configuration and credential file locations

These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.


## Configuration files

- Unix: ./ct.yaml, ~/.ct/ct.yaml, /etc/ct/ct.yaml
## Source Database Details

- **Source Database:** Homebrew formula API
- **Tap:** homebrew/core
- **Full Name:** chart-testing
- **Version Scheme:** 0
- **Revision:** 0
- **Head Version:** HEAD
- **Conflicts With:** coreos-ct
- **Bottle Stable Root URL:** <https://ghcr.io/v2/homebrew/core>
- **Deprecated:** no
- **Disabled:** no
- **Keg Only:** no
- **URL Keys:** head, stable

## Other Package-Manager Records

- Nix - chart-testing: normalized package name match | nixpkgs package indexes: pkgs/by-name/ch/chart-testing/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- zypper - chart-testing - 3.14.0-1.4: normalized package name match | openSUSE Tumbleweed package metadata: chart-testing from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst | CLI tool for linting and testing Helm charts | https://github.com/helm/chart-testing
- pacman - ct - 0.9.4-2: installed executable or alias match | Arch Linux sync databases: ct from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | config transpiler for Flatcar Container Linux | https://github.com/flatcar/container-linux-config-transpiler


## Related links

- [Cloud CLI packages](https://www.automicvault.com/pkg/cloud-clis/) - Belongs to a cloud or infrastructure command family.
- [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family.
- [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata.
- [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata.
- [yamale](https://www.automicvault.com/pkg/brew/yamale/) - Runtime dependency declared by Homebrew.
- [go](https://www.automicvault.com/pkg/brew/go/) - Build dependency declared by Homebrew.
- [chart-releaser](https://www.automicvault.com/pkg/brew/chart-releaser/) - Shares av.db curated category or tags: charts, cli, developer-tools, helm, kubernetes.
- [cargo-nextest](https://www.automicvault.com/pkg/brew/cargo-nextest/) - Shares av.db curated category or tags: ci, cli, developer-tools, testing.
- [flank](https://www.automicvault.com/pkg/brew/flank/) - Shares av.db curated category or tags: ci, cli, developer-tools, testing.
- [gotestsum](https://www.automicvault.com/pkg/brew/gotestsum/) - Shares av.db curated category or tags: ci, cli, developer-tools, testing.
- [kind](https://www.automicvault.com/pkg/brew/kind/) - Shares av.db curated category or tags: cli, developer-tools, kubernetes, testing.
- [kube-linter](https://www.automicvault.com/pkg/brew/kube-linter/) - Shares av.db curated category or tags: cli, developer-tools, helm, kubernetes.
- [kube-score](https://www.automicvault.com/pkg/brew/kube-score/) - Shares av.db curated category or tags: cli, developer-tools, helm, kubernetes.
- [kubeconform](https://www.automicvault.com/pkg/brew/kubeconform/) - Shares av.db curated category or tags: ci, cli, developer-tools, kubernetes.
- [helm-docs](https://www.automicvault.com/pkg/brew/helm-docs/) - Local package facts share a topical domain. Shared terms: charts, cli, developer, developer-tools, helm.

## Combined YAML source

View the package source record on GitHub. [combined/chart-testing.yml](https://github.com/automic-vault/db/blob/main/combined/chart-testing.yml)


## Sources

- Nucleus package database
- Geiger risk classifier
- package-page enrichment
- curated configuration and credential file locations
- curated package history
- package version freshness
- av.db category and tag curation
- package relationship graph
- external package-manager database matches
- cross-ecosystem install command graph