Testing Locally:
asdf plugin test <plugin-name> <plugin-url> [--asdf-tool-version <version>] [--asdf-plugin-gitref <git-ref>] [test-command*]
# e.g.
asdf plugin test overmind-cli https://github.com/overmindtech/asdf-overmind-cli.git "overmind --version"
Tests are automatically run in GitHub Actions on push and PR.