Add fake_gcc to the test case for compile failed.

Rakefile

@@ -71,12 +71,18 @@ end
 task :default => [:test] do
 end
 
-task :test do
+task :test => [:fallback_test] do
   sh "ruby -I ./lib `which rspec` -b ./test/basic_native_spec.rb"   if File.exist?( "./test/basic_native_spec.rb" )
   sh "ruby -I ./lib `which rspec` -b ./test/basic_pure_spec.rb"
   sh "ruby -I ./lib `which rspec` -b ./test/mutibyte_spec.rb"
 end
 
+task :fallback_test => [:clean_dot_rubyinline] do
+  sh "/bin/mkdir -p /tmp/fake_gcc/"
+  sh "/bin/cp ./fake_gcc /tmp/fake_gcc/gcc"
+  sh "export PATH=\"/tmp/fake_gcc:${PATH}\" ; rspec -I ./lib ./test/fallback_pure_spec.rb"
+end
+
 task :test_dev do
   sh "ruby -I ./lib `which rspec` -b ./test/verify_with_amatch_spec.rb"
 end
@@ -85,3 +91,6 @@ task :bench do
   sh "ruby ./benchmark/vs_amatch.rb"
 end
 
+task :clean_dot_rubyinline do
+  sh "/bin/rm -rf ~/.ruby_inline"
+end

fake_gcc

@@ -0,0 +1,7 @@
+#!/bin/bash
+
+echo "fake_gcc: $1 compile failded."
+false
+
+
+

test/fallback_pure_spec.rb

@@ -0,0 +1,32 @@
+#!/usr/bin/env ruby
+# -*- encoding: utf-8 -*-
+#
+# fallback_pure_spec.rb -  "Fall back feature into pure ruby mode."
+#  
+#   Copyright (c) 2013  Kiyoka Nishiyama  <kiyoka@sumibi.org>
+#
+#  Licensed to the Apache Software Foundation (ASF) under one or more
+#  contributor license agreements.  See the NOTICE file distributed with
+#  this work for additional information regarding copyright ownership.
+#  The ASF licenses this file to You under the Apache License, Version 2.0
+#  (the "License"); you may not use this file except in compliance with
+#  the License.  You may obtain a copy of the License at
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#  
+
+
+require 'inline'
+
+describe Inline, "when c compile failed, fall back into pure " do
+  it "should" do
+    lambda { require 'fuzzystringmatch' }.should   raise_error( CompilationError )
+  end
+end