fix tests for normalize_dir

lib/gollum/blob_entry.rb

@@ -32,7 +32,7 @@ module Gollum
     #
     # Returns an unbaked Grit::Blob instance.
     def blob(repo)
-      @blob ||= Grit::Blob.create(repo, 
+      @blob ||= Grit::Blob.create(repo,
         :id => @sha, :name => name, :size => @size)
     end
 
@@ -53,7 +53,7 @@ module Gollum
     end
 
     # Normalizes a given directory name for searching through tree paths.
-    # Ensures that a directory begins with a slash, or 
+    # Ensures that a directory begins with a slash, or
     #
     #   normalize_dir("")      # => ""
     #   normalize_dir(".")     # => ""
@@ -64,12 +64,13 @@ module Gollum
     #
     # dir - String directory name.
     #
-    # Returns a normalized String directory name, or nil if no directory 
+    # Returns a normalized String directory name, or nil if no directory
     # is given.
     def self.normalize_dir(dir)
+      return '' if dir =~ /^.:\/$/
       if dir
         dir = ::File.expand_path(dir, '/')
-        dir = '' if (dir == '/' || dir =~ /^.:\/$/)
+        dir = '' if dir == '/'
       end
       dir
     end

test/test_page.rb

@@ -139,6 +139,7 @@ context "Page" do
     assert_equal "", Gollum::BlobEntry.normalize_dir("")
     assert_equal "", Gollum::BlobEntry.normalize_dir(".")
     assert_equal "", Gollum::BlobEntry.normalize_dir("/")
+    assert_equal "", Gollum::BlobEntry.normalize_dir("c:/")
     assert_equal "/foo", Gollum::BlobEntry.normalize_dir("foo")
     assert_equal "/foo", Gollum::BlobEntry.normalize_dir("/foo")
   end