Fixed issue where Dir glob would not work properly when doing /**/*.

lib/fakefs/file_system.rb

@@ -109,11 +109,14 @@ module FakeFS
       matches = case pattern
       when '**'
         case parts
-        when ['*'], []
+        when ['*']
           parts = [] # end recursion
           directories_under(dir).map do |d|
-            d.values.select{|f| f.is_a? FakeFile }
+            d.values.select{|f| f.is_a?(FakeFile) || f.is_a?(FakeDir) }
           end.flatten.uniq
+        when []
+          parts = [] # end recursion
+          dir.values.flatten.uniq
         else
           directories_under(dir)
         end

test/fakefs_test.rb

@@ -458,6 +458,13 @@ class FakeFSTest < Test::Unit::TestCase
     assert_equal ['/path/foo', '/path/foobar'], Dir['/p*h/foo*']
     assert_equal ['/path/foo', '/path/foobar'], Dir['/p??h/foo*']
 
+    assert_equal ['/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/path/**/*']
+    assert_equal ['/path', '/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/**/*']
+
+    assert_equal ['/path/bar', '/path/bar/baz', '/path/bar2', '/path/bar2/baz', '/path/foo', '/path/foobar'], Dir['/path/**/*']
+    
+    assert_equal ['/path/bar/baz'], Dir['/path/bar/**/*']
+
     FileUtils.cp_r '/path', '/otherpath'
 
     assert_equal %w( /otherpath/foo /otherpath/foobar /path/foo /path/foobar ), Dir['/*/foo*']
@@ -478,11 +485,11 @@ class FakeFSTest < Test::Unit::TestCase
     assert_equal ['/one/two/three'], Dir['/one/**/three']
   end
 
-  def test_dir_recursive_glob_ending_in_wildcards_only_returns_files
+  def test_dir_recursive_glob_ending_in_wildcards_returns_both_files_and_dirs
     File.open('/one/two/three/four.rb', 'w')
     File.open('/one/five.rb', 'w')
-    assert_equal ['/one/five.rb', '/one/two/three/four.rb'], Dir['/one/**/*']
-    assert_equal ['/one/five.rb', '/one/two/three/four.rb'], Dir['/one/**']
+    assert_equal ['/one/five.rb', '/one/two', '/one/two/three', '/one/two/three/four.rb'], Dir['/one/**/*']
+    assert_equal ['/one/five.rb', '/one/two'], Dir['/one/**']
   end
 
   def test_should_report_pos_as_0_when_opening