merge revision(s) 36668: [Backport #6846]

	* test/ruby/test_file_exhaustive.rb
	  (TestFileExhaustive#test_stat_special_file): add a test.
	  GetFileAttributesExW fails to get attributes of special files
	  such as pagefile.sys.

	* win32/win32.c (check_valid_dir): for performance, check the path
	  by FindFirstFileW only if the path contains "...".

	* win32/win32.c (winnt_stat): use GetFileAttributesExW instead of
	  FindFirstFileW since GetFileAttributesExW is faster.
	  Based on the patch by Dusan D. Majkic.
	  [ruby-core:47083] [Feature #6845]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@36792 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 0 deletions

diff --git a/test/ruby/test_file_exhaustive.rb b/test/ruby/test_file_exhaustive.rb
index c10b05a86b..f89e2512d0 100644
--- a/test/ruby/test_file_exhaustive.rb
+++ b/test/ruby/test_file_exhaustive.rb
@@ -3,6 +3,8 @@ require "fileutils"
 require "tmpdir"
 
 class TestFileExhaustive < Test::Unit::TestCase
+  DRIVE = Dir.pwd[%r'\A(?:[a-z]:|//[^/]+/[^/]+)'i]
+
   def assert_incompatible_encoding
     d = "\u{3042}\u{3044}".encode("utf-16le")
     assert_raise(Encoding::CompatibilityError) {yield d}
@@ -770,6 +772,13 @@ class TestFileExhaustive < Test::Unit::TestCase
     assert_equal(0, File::Stat.new(@zerofile).size)
   end
 
+  def test_stat_special_file
+    # test for special files such as pagefile.sys on Windows
+    assert_nothing_raised do
+      Dir::glob("C:/*.sys") {|f| File::Stat.new(f) }
+    end
+  end if DRIVE
+
   def test_path_check
     assert_nothing_raised { ENV["PATH"] }
   end