1 files changed, 4 insertions, 2 deletions
diff --git a/Library/Formula/chuck.rb b/Library/Formula/chuck.rb
index 298327130..fe7880cc4 100644
--- a/Library/Formula/chuck.rb
+++ b/Library/Formula/chuck.rb
@@ -1,5 +1,3 @@
-require "formula"
-
 class Chuck < Formula
   homepage "http://chuck.cs.princeton.edu/"
   url "http://chuck.cs.princeton.edu/release/files/chuck-1.3.4.0.tgz"
@@ -22,6 +20,10 @@ class Chuck < Formula
     bin.install "src/chuck"
     (share/"chuck").install "examples"
   end
+
+  test do
+    assert_match /probe \[success\]/m, shell_output("#{bin}/chuck --probe 2>&1")
+  end
 end
 
 __END__