Confim behaviour for garbled input.

Rakefile

@@ -14,7 +14,9 @@ task :default => :spec
 desc 'Run all specs'
 task :spec do
   ruby = File.join(*Config::CONFIG.values_at('bindir', 'ruby_install_name'))
-  sh "#{ruby} spec/**/*_spec.rb"
+  FileList[File.expand_path('../spec/**/*_spec.rb', __FILE__)].each do |spec|
+    sh "#{ruby} #{spec}"
+  end
 end
 
 namespace :documentation do

spec/examples/garbled_1.txt

@@ -0,0 +1 @@
+Le botier tanche permet de le mettre en �uvre dans les conditions les plus extrmes.

spec/regression/garbled_encoding_spec.rb

@@ -0,0 +1,23 @@
+# encoding: utf-8
+
+require File.expand_path('../../start', __FILE__)
+
+describe "Ensure::Encoding, concerning cleanup of garbled input" do
+  it "should be allowed to throw errors when not forced to drop invalid characters" do
+    Dir.glob(File.expand_path('../../examples', __FILE__) + '/garbled*').each do |filename|
+      text = read_example(filename)
+      lambda {
+        Ensure::Encoding.force_encoding(text, 'UTF-8')
+      }.should.raise(Encoding::UndefinedConversionError)
+    end
+  end
+
+  it "should not throw errors when forced to drop invalid characters" do
+    Dir.glob(File.expand_path('../../examples', __FILE__) + '/garbled*').each do |filename|
+      text = read_example(filename)
+      lambda {
+        Ensure::Encoding.force_encoding(text, 'UTF-8', :invalid_characters => :drop)
+      }.should.not.raise
+    end
+  end
+end

spec/start.rb

@@ -8,7 +8,7 @@
 
 $:.unshift(File.expand_path('../../lib', __FILE__))
 
-require 'ensure'
+require 'ensure/encoding'
 
 module EncodingTestHelpers
   EXAMPLES = {
@@ -23,11 +23,17 @@ def examples
     EXAMPLES.keys
   end
 
-  def example(name, options={})
-    filename, contents = name.gsub(/-/, '_').downcase, ''
-    File.open(File.expand_path("../examples/#{filename}.txt", __FILE__), 'r:binary') do |file|
+  def read_example(filename)
+    contents = ''
+    File.open(filename, 'r:binary') do |file|
       contents << file.read
     end
+    contents
+  end
+
+  def example(name, options={})
+    filename, contents = name.gsub(/-/, '_').downcase, ''
+    contents = read_example(File.expand_path("../examples/#{filename}.txt", __FILE__))
     contents.force_encoding(options[:mark_as] || Encoding.find(name))
     return contents, EXAMPLES[name]
   end