From 8ca1e845ba73d2e7d37e977e95d12fdcc1c07c94 Mon Sep 17 00:00:00 2001
From: FX Coudert <fxcoudert@gmail.com>
Date: Sun, 26 Aug 2018 12:33:27 +0200
Subject: [PATCH] docbook: add test

---
 Formula/docbook.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Formula/docbook.rb b/Formula/docbook.rb
index b48aa2fb4a..19df3a56c2 100644
--- a/Formula/docbook.rb
+++ b/Formula/docbook.rb
@@ -92,4 +92,8 @@ class Docbook < Formula
     export XML_CATALOG_FILES="#{etc}/xml/catalog"
   EOS
   end
+
+  test do
+    assert_predicate etc/"xml/catalog", :exist?
+  end
 end