diff --git a/ChangeLog b/ChangeLog
index 05f6baf9d7..b5df1663f3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Feb  9 11:03:40 2007  Koichi Sasada  <ko1@atdot.net>
+
+	* test/ruby/test_readpartial.rb: tests are working on mswin32/cygwin.
+
 Fri Feb  9 05:08:17 2007  Koichi Sasada  <ko1@atdot.net>
 
 	* thread.c, thread_pthread.ci, thread_win32.ci (thread_start_func_1):
diff --git a/test/ruby/test_readpartial.rb b/test/ruby/test_readpartial.rb
index 6bfafc3aa2..c4f9d193f2 100644
--- a/test/ruby/test_readpartial.rb
+++ b/test/ruby/test_readpartial.rb
@@ -1,6 +1,6 @@
 require 'test/unit'
 require 'timeout'
-#require 'fcntl'
+require 'fcntl'
 
 class TestReadPartial < Test::Unit::TestCase
   def make_pipe
@@ -48,8 +48,6 @@ class TestReadPartial < Test::Unit::TestCase
       w << 'abc'
       assert_equal('ab', r.readpartial(2))
       assert_equal('c', r.readpartial(2))
-assert false, "TODO: doesn't work on cygwin" if /cygwin/ =~ RUBY_PLATFORM
-assert false, "TODO: doesn't work on mswin32" if /mswin32/ =~ RUBY_PLATFORM
       assert_raises(TimeoutError) {
         timeout(0.1) { r.readpartial(2) }
       }
@@ -64,8 +62,6 @@ assert false, "TODO: doesn't work on mswin32" if /mswin32/ =~ RUBY_PLATFORM
       assert_equal("de", r.readpartial(2))
       assert_equal("f\n", r.readpartial(4096))
       assert_equal("ghi\n", r.readpartial(4096))
-assert false, "TODO: doesn't work on cygwin" if /cygwin/ =~ RUBY_PLATFORM
-assert false, "TODO: doesn't work on mswin32" if /mswin32/ =~ RUBY_PLATFORM
       assert_raises(TimeoutError) {
         timeout(0.1) { r.readpartial(2) }
       }