cuty_capt: test added

Closes Homebrew/legacy-homebrew#38092.

Signed-off-by: Xu Cheng <xucheng@me.com>

Formula/cuty_capt.rb

@@ -1,16 +1,19 @@
-require 'formula'
-
 class CutyCapt < Formula
-  homepage 'http://cutycapt.sourceforge.net/'
-  url 'http://ftp.de.debian.org/debian/pool/main/c/cutycapt/cutycapt_0.0~svn6.orig.tar.gz'
-  version '0.0.6'
-  sha1 '9c35cff498e8dfc351cbfeb884ad69f6ba29ae2e'
+  homepage "http://cutycapt.sourceforge.net/"
+  url "http://ftp.de.debian.org/debian/pool/main/c/cutycapt/cutycapt_0.0~svn6.orig.tar.gz"
+  version "0.0.6"
+  sha256 "cf85226a25731aff644f87a4e40b8878154667a6725a4dc0d648d7ec2d842264"
 
-  depends_on 'qt'
+  depends_on "qt"
 
   def install
-    system "qmake CONFIG-=app_bundle"
+    system "qmake", "CONFIG-=app_bundle"
     system "make"
     bin.install "CutyCapt"
   end
+
+  test do
+    system "#{bin}/CutyCapt", "--url=http://brew.sh", "--out=brew.png"
+    assert File.exist? "brew.png"
+  end
 end