dir.c: glob cases on case-insensitive system

* dir.c (glob_helper): return the filename with actual cases on
  the filesystem if it is case-insensitive.  [ruby-core:42469]
  [Feature #5994]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44796 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 21 insertions, 0 deletions

diff --git a/test/ruby/test_dir.rb b/test/ruby/test_dir.rb
index 6054b8f7fe..b0d848c83f 100644
--- a/test/ruby/test_dir.rb
+++ b/test/ruby/test_dir.rb
@@ -228,6 +228,27 @@ class TestDir < Test::Unit::TestCase
     assert_empty(Dir.glob(File.join(@root, "<")), bug8597)
   end
 
+  def test_glob_cases
+    feature5994 = "[ruby-core:42469] [Feature #5994]"
+    feature5994 << "\nDir.glob should return the filename with actual cases on the filesystem"
+    Dir.chdir(File.join(@root, "a")) do
+      open("FileWithCases", "w") {}
+      return unless File.exist?("filewithcases")
+      assert_equal(%w"FileWithCases", Dir.glob("filewithcases"), feature5994)
+    end
+    Dir.chdir(File.join(@root, "c")) do
+      open("FileWithCases", "w") {}
+      mode = File.stat(".").mode
+      begin
+        File.chmod(mode & ~0444, ".")
+        return if mode == File.stat(".").mode
+        assert_equal(%w"filewithcases", Dir.glob("filewithcases"), feature5994)
+      ensure
+        File.chmod(mode, ".")
+      end
+    end
+  end
+
   def test_home
     env_home = ENV["HOME"]
     env_logdir = ENV["LOGDIR"]