Added test cases to test Unicode handling issue.

these test cases will fail on non-unicode testing environment

test/test_unicode.rb

@@ -0,0 +1,110 @@
+# ~*~ encoding: utf-8 ~*~
+require File.expand_path(File.join(File.dirname(__FILE__), "helper"))
+
+context "Unicode Support" do
+  setup do
+    @path = cloned_testpath("examples/revert.git")
+    @wiki = Gollum::Wiki.new(@path)
+  end
+
+  teardown do
+    FileUtils.rm_rf(@path)
+  end
+
+  test "create and read non-latin page" do
+    @wiki.write_page("한글 test", :markdown, "# 한글")
+
+    page = @wiki.page("한글 test")
+    assert_equal Gollum::Page, page.class
+    assert_equal "# 한글", page.raw_data.force_encoding('utf-8')
+  end
+
+  test "unicode with existing format rules" do
+    @wiki.write_page("한글 test", :markdown, "# 한글")
+    assert_equal @wiki.page("한글 test").path, @wiki.page("한글-test").path
+  end
+end
+
+context "Frontend Unicode support" do
+  include Rack::Test::Methods
+
+  setup do
+    @path = cloned_testpath("examples/revert.git")
+    @wiki = Gollum::Wiki.new(@path)
+    Precious::App.set(:gollum_path, @path)
+    Precious::App.set(:wiki_options, {})
+  end
+
+  teardown do
+    FileUtils.rm_rf(@path)
+  end
+
+  test "creates korean page" do
+    post "/create", :content => 'english text', :page => "한글",
+      :format => 'markdown', :message => 'def'
+    follow_redirect!
+    assert last_response.ok?
+
+    page = @wiki.page('한글')
+    assert_equal 'english text', page.raw_data
+    assert_equal 'def', page.version.message
+  end
+
+  test "creates korean page which contains korean content" do
+    post "/create", :content => '한글 text', :page => "한글",
+      :format => 'markdown', :message => 'def'
+    follow_redirect!
+    assert last_response.ok?
+
+    page = @wiki.page('한글')
+    assert_equal '한글 text', page.raw_data.force_encoding('utf-8')
+    assert_equal 'def', page.version.message
+  end
+
+  test "heavy use 1" do
+    post "/create", :content => '한글 text'.force_encoding('ascii-8bit'), :page => "PG",
+      :format => 'markdown', :message => 'def'
+    follow_redirect!
+    assert last_response.ok?
+
+    @wiki.update_page(@wiki.page('PG'), nil, nil, '다른 text', {})
+    page = @wiki.page('PG')
+    assert_equal '다른 text', page.raw_data.force_encoding('utf-8')
+
+    post '/edit/PG', :content => '바뀐 text'.force_encoding('ascii-8bit'), :message => 'ghi'
+    follow_redirect!
+    assert last_response.ok?
+
+    @wiki = Gollum::Wiki.new(@path)
+    page = @wiki.page('PG')
+    assert_equal '바뀐 text', page.raw_data.force_encoding('utf-8')
+    assert_equal 'ghi', page.version.message
+  end
+
+  test "heavy use 2" do
+    post "/create", :content => '한글 text', :page => "한글",
+      :format => 'markdown', :message => 'def'
+    follow_redirect!
+    assert last_response.ok?
+
+    @wiki.update_page(@wiki.page('한글'), nil, nil, '다른 text', {})
+    @wiki = Gollum::Wiki.new(@path)
+    page = @wiki.page('한글')
+    assert_equal '다른 text', page.raw_data.force_encoding('utf-8')
+
+    post '/edit/' + CGI.escape('한글'), :content => '바뀐 text',
+      :format => 'markdown', :message => 'ghi'
+    follow_redirect!
+    assert last_response.ok?
+
+    @wiki = Gollum::Wiki.new(@path)
+    page = @wiki.page('한글')
+    assert_equal '바뀐 text', page.raw_data.force_encoding('utf-8')
+    assert_equal 'ghi', page.version.message
+  end
+
+  def app
+    Precious::App
+  end
+end
+