support globbing to files and partial path part matches

lib/fakefs/file_system.rb

@@ -22,15 +22,25 @@ module FakeFS
     def find(path)
       parts = path_parts(normalize_path(path))
       
-      target = parts[0...-1].inject(fs) do |dir, part|
+      entries = find_recurser(fs, parts).flatten
-        dir[part] || {}
+      
+      case entries.length
+      when 0 then nil
+      when 1 then entries.first
+      else entries
+      end
     end
 
-      case parts.last
+    def find_recurser(dir, parts)
-      when '*'
+      return [] unless dir.respond_to? :[]
-        target.values
+
+      pattern , *parts = parts
+      matches = dir.reject {|k,v| /\A#{pattern.gsub('*', '.*')}\Z/ !~ k }.values
+
+      if parts.empty? # we're done recursing
+        matches
       else
-        target[parts.last]
+        matches.map{|entry| find_recurser(entry, parts) }
       end
     end
 

test/fakefs_test.rb

@@ -203,9 +203,11 @@ class FakeFSTest < Test::Unit::TestCase
     assert_equal %w( /path/bar /path/bar2 /path/foo /path/foobar ), Dir['/path/*']
 
     assert_equal ['/path/bar/baz'], Dir['/path/bar/*']
+    assert_equal ['/path/foo'], Dir['/path/foo']
 
     # Unsupported so far. More hackery than I want to work on right now
-    # assert_equal ['/path'], Dir['/path*']
+    assert_equal ['/path/foo', '/path/foobar'], Dir['/path/foo*']
+    assert_equal ['/path'], Dir['/path*']
   end
 
   def test_chdir_changes_directories_like_a_boss