From dade22f69a8b695f8cf7b2cc86fcfa071cde059a Mon Sep 17 00:00:00 2001
From: Adam Vandenberg
Date: Wed, 27 Jun 2012 08:45:36 -0700
Subject: fann: add test

---
 Library/Formula/fann.rb | 45 ++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

(limited to 'Library')

diff --git a/Library/Formula/fann.rb b/Library/Formula/fann.rb
index 82e706bd3..08c0f0a94 100644
--- a/Library/Formula/fann.rb
+++ b/Library/Formula/fann.rb
@@ -3,7 +3,7 @@ require 'formula'
 class Fann < Formula
   homepage 'http://leenissen.dk/fann/wp/'
   url 'http://downloads.sourceforge.net/project/fann/fann/2.2.0/FANN-2.2.0-Source.tar.gz'
-  md5 'c9d6c8da5bb70276352a1718a668562c'
+  sha1 'ff8341e4104bdbc0f3ab7ad39aef33285f8512d4'
 
   depends_on 'cmake' => :build
 
@@ -11,4 +11,47 @@ class Fann < Formula
     system "cmake", ".", *std_cmake_args
     system "make install"
   end
+
+  def test
+    mktemp do
+      (Pathname.pwd/'xor.data').write <<-EOS.undent
+        4 2 1
+        -1 -1
+        -1
+        -1 1
+        1
+        1 -1
+        1
+        1 1
+        -1
+      EOS
+
+      (Pathname.pwd/'test.c').write <<-EOS.undent
+      #include "fann.h"
+      int main()
+      {
+          const unsigned int num_input = 2;
+          const unsigned int num_output = 1;
+          const unsigned int num_layers = 3;
+          const unsigned int num_neurons_hidden = 3;
+          const float desired_error = (const float) 0.001;
+          const unsigned int max_epochs = 500000;
+          const unsigned int epochs_between_reports = 1000;
+          struct fann *ann = fann_create_standard(num_layers, num_input,
+              num_neurons_hidden, num_output);
+          fann_set_activation_function_hidden(ann, FANN_SIGMOID_SYMMETRIC);
+          fann_set_activation_function_output(ann, FANN_SIGMOID_SYMMETRIC);
+          fann_train_on_file(ann, "xor.data", max_epochs,
+              epochs_between_reports, desired_error);
+          fann_save(ann, "xor_float.net");
+          fann_destroy(ann);
+          return 0;
+      }
+      EOS
+      system ENV.cc, "-o", "test", "test.c", "-lfann"
+      system "./test"
+      system "cat xor_float.net"
+      puts
+    end
+  end
 end
-- 
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