zsh-syntax-highlighting: add test

Closes #35461.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/Library/Formula/zsh-syntax-highlighting.rb b/Library/Formula/zsh-syntax-highlighting.rb
index 6bacb81e1..9fed7b0b5 100644
--- a/Library/Formula/zsh-syntax-highlighting.rb
+++ b/Library/Formula/zsh-syntax-highlighting.rb
@@ -1,5 +1,3 @@
-require "formula"
-
 class ZshSyntaxHighlighting < Formula
   homepage "https://github.com/zsh-users/zsh-syntax-highlighting"
   url "https://github.com/zsh-users/zsh-syntax-highlighting/archive/0.2.1.tar.gz"
@@ -27,4 +25,8 @@ class ZshSyntaxHighlighting < Formula
       export ZSH_HIGHLIGHT_HIGHLIGHTERS_DIR=#{HOMEBREW_PREFIX}/share/zsh-syntax-highlighting/highlighters
     EOS
   end
+
+  test do
+    system "#{share}/zsh-syntax-highlighting/tests/test-highlighting.zsh", "main"
+  end
 end