implicit stubs defined instead of explicit

README.md

@@ -55,7 +55,7 @@ This project uses [`shellspec`](https://github.com/shellspec/shellspec) as a tes
 
 Tests are defined in the `spec` directory, and are all files matching the pattern `<suite_name>_spec.sh`. Mocks, custom matchers and other fixtures can be defined in the `spec/support` directory.
 
-The `pot` mock has already been defined and is imported into all tests. By default, all `pot` subcommands return truthy with no side effects, but these can be overloaded on a per-subcommand basis, as each subcommand has its own stub function. See [here](spec/simple_spec.sh#L47) for an example of overloading the `pot exec` subcommand, and [here](spec/support/pot_mock.sh#L59) for a list of all subcommand stubs that can be overloaded.
+The `pot` mock has already been defined and is imported into all tests. By default, all `pot` subcommands return truthy with no side effects, but these can be overloaded on a per-subcommand basis, as each subcommand has its own stub function. See [here](spec/simple_spec.sh#L47) for an example of overloading the `pot exec` subcommand, and [here](spec/support/pot_mock.sh#L5) for a list of all subcommand stubs that can be overloaded.
 
 Wrapper scripts to run GitHub actions in a jail on FreeBSD
 ----------------------------------------------------------

spec/support/pot_mock.sh

@@ -53,55 +53,9 @@ pot() {
     *)                      fn='pot_other';;
   esac
   shift 1
-  $fn "$@"
+  if type "$fn" 2>/dev/null | grep -q 'function'; then
+    $fn "$@"
+  else
+    :
+  fi
 }
-
-pot_help() { :; }
-pot_version() { :; }
-pot_config() { :; }
-pot_list() { :; }
-pot_show() { :; }
-pot_info() { :; }
-pot_top() { :; }
-pot_ps() { :; }
-pot_init() { :; }
-pot_de_init() { :; }
-pot_vnet_start() { :; }
-pot_create_base() { :; }
-pot_create_fscomp() { :; }
-pot_create_private_bridge() { :; }
-pot_create() { :; }
-pot_clone() { :; }
-pot_clone_fscomp() { :; }
-pot_rename() { :; }
-pot_destroy() { :; }
-pot_prune() { :; }
-pot_copy_in() { :; }
-pot_copy_out() { :; }
-pot_mount_in() { :; }
-pot_mount_out() { :; }
-pot_add_dep() { :; }
-pot_set_rss() { :; }
-pot_get_rss() { :; }
-pot_set_cmd() { :; }
-pot_set_env() { :; }
-pot_set_hosts() { :; }
-pot_set_hook() { :; }
-pot_set_attribute() { :; }
-pot_get_attribute() { :; }
-pot_export_ports() { :; }
-pot_start() { :; }
-pot_stop() { :; }
-pot_term() { :; }
-pot_run() { :; }
-pot_snapshot() { :; }
-pot_revert() { :; }
-pot_purge_snapshots() { :; }
-pot_export() { :; }
-pot_import() { :; }
-pot_prepare() { :; }
-pot_update_config() { :; }
-pot_last_run_stats() { :; }
-pot_signal() { :; }
-pot_exec() { :; }
-pot_other() { :; }