Forward Example procsy to_s to example

https://gitlab.com/arctic-fox/spectator/-/issues/70

CHANGELOG.md

@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Changed
+- Forward example procsy `to_s` to underlying example. [#70](https://gitlab.com/arctic-fox/spectator/-/issues/70)
+
 ## [0.10.5] - 2022-01-27
 ### Fixed
 - Fixed usage of `sample` with single block argument. [#41](https://github.com/icy-arctic-fox/spectator/issues/41#issuecomment-1022525702)

src/spectator/example.cr

@@ -283,6 +283,12 @@ module Spectator
 
       # Allow instance to behave like an example.
       forward_missing_to @example
+
+      # Constructs the full name or description of the example.
+      # This prepends names of groups this example is part of.
+      def to_s(io) : Nil
+        @example.to_s(io)
+      end
     end
   end
 end