magic tests added, ruby 1.9 compatible

Manifest.txt

 lib/mimemagic.rb
 lib/mimemagic_tables.rb
 test/test_mimemagic.rb
+test/files/application.x-bzip
+test/files/image.jpeg
+test/files/image.png
+test/files/application.x-tar
+test/files/application.x-gzip
+test/files/application.zip
+test/files/application.x-ruby
 script/freedesktop.org.xml
 script/generate-mime.rb
 Rakefile

lib/mimemagic.rb

@@ -3,7 +3,7 @@ require 'stringio'
 
 # Mime type detection
 class MimeMagic
-  VERSION = '0.1.1'
+  VERSION = '0.1.2'
 
   attr_reader :type, :mediatype, :subtype
 
@@ -51,6 +51,10 @@ class MimeMagic
   # Lookup mime type by magic content analysis
   # That could be slow
   def self.by_magic(content)
+    if String === content
+      content.force_encoding('ascii-8bit') if content.respond_to? :force_encoding
+      content = StringIO.new(content.to_s, 'rb')
+    end
     io = content.respond_to?(:seek) ? content : StringIO.new(content.to_s, 'rb')
     mime = MAGIC.find {|type, matches| magic_match(io, matches) }
     mime ? new(mime[0]) : nil
@@ -75,13 +79,13 @@ class MimeMagic
 
   def self.magic_match(io, matches)
     matches.any? do |offset, value, children|
-      if Range === offset
-        io.seek(offset.begin)
-        match = io.read(offset.end - offset.begin + value.length).include?(value)
-      else
-        io.seek(offset)
-        match = value == io.read(value.length)
-      end
+      match = if Range === offset
+		io.seek(offset.begin)
+                io.read(offset.end - offset.begin + value.length).include?(value)
+              else
+                io.seek(offset)
+		value == io.read(value.length)
+              end
       match && (!children || magic_match(io, children))
     end
   rescue

mimemagic.gemspec

@@ -2,13 +2,28 @@
 
 Gem::Specification.new do |s|
   s.name = %q{mimemagic}
-  s.version = "0.1.1"
+  s.version = "0.1.2"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Daniel Mendler"]
   s.date = %q{2009-05-09}
   s.email = ["mail@daniel-mendler.de"]
-  s.files = ["lib/mimemagic.rb", "lib/mimemagic_tables.rb", "test/test_mimemagic.rb", "script/freedesktop.org.xml", "script/generate-mime.rb", "Rakefile"]
+  s.files = %w{
+lib/mimemagic.rb
+lib/mimemagic_tables.rb
+test/test_mimemagic.rb
+test/files/application.x-bzip
+test/files/image.jpeg
+test/files/image.png
+test/files/application.x-tar
+test/files/application.x-gzip
+test/files/application.zip
+test/files/application.x-ruby
+script/freedesktop.org.xml
+script/generate-mime.rb
+Rakefile
+README
+  }
   s.has_rdoc = true
   s.rdoc_options = ["--main", "README.txt"]
   s.require_paths = ["lib"]

test/files/application.x-ruby

+#!/usr/bin/ruby
+print "Hello World"

test/test_mimemagic.rb

 gem 'test-unit', '>= 0'
 gem 'test-spec', '>= 0'
+
 require 'test/unit'
 require 'test/spec'
 require 'mimemagic'
@@ -28,7 +29,10 @@ describe 'MimeMagic' do
   end
 
   it 'should recognize by magic' do
-    MimeMagic.by_magic(File.open('/bin/ls')).to_s.should == 'application/x-executable'
-    MimeMagic.by_magic(File.open('/lib/libc.so.6')).to_s.should == 'application/x-sharedlib'
+    Dir['test/files/*'].each do |file|
+      mime = file[11..-1].gsub('.', '/')
+      MimeMagic.by_magic(File.read(file)).to_s.should == mime
+      MimeMagic.by_magic(File.open(file, 'rb')).to_s.should == mime
+    end
   end
 end