1 files changed, 25 insertions, 0 deletions
diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index dfe91f2888..6f14c8d121 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -16,6 +16,9 @@ class TestProcess < Test::Unit::TestCase
   end
 
   def windows?
+    self.class.windows?
+  end
+  def self.windows?
     return /mswin|mingw|bccwin/ =~ RUBY_PLATFORM
   end
 
@@ -1608,6 +1611,28 @@ EOS
     end
   end
 
+  def test_spawn_nonascii
+    bug1771 = '[ruby-core:24309] [Bug #1771]'
 
+    with_tmpchdir do
+      [
+       "\u{7d05 7389}",
+       "zuf\u{00E4}llige_\u{017E}lu\u{0165}ou\u{010D}k\u{00FD}_\u{10D2 10D0 10DB 10D4 10DD 10E0 10D4 10D1}_\u{0440 0430 0437 043B 043E 0433 0430}_\u{548C 65B0 52A0 5761 4EE5 53CA 4E1C}",
+       # "c\u{1EE7}a", # work with a backslash, but not with a slash, for some reason.
+      ].each do |name|
+        msg = "#{bug1771} #{name}"
+        exename = "./#{name}.exe"
+        FileUtils.cp(ENV["COMSPEC"], exename)
+        assert_equal(true, system("#{exename} /c exit"), msg)
+        system("#{exename} /c exit 12")
+        assert_equal(12, $?.exitstatus, msg)
+        _, status = Process.wait2(Process.spawn("#{exename} /c exit 42"))
+        assert_equal(42, status.exitstatus, msg)
+        assert_equal("ok\n", `#{exename} /c echo ok`, msg)
+        assert_equal("ok\n", IO.popen("#{exename} /c echo ok", &:read), msg)
+        assert_equal("ok\n", IO.popen(%W"#{exename} /c echo ok", &:read), msg)
+      end
+    end
+  end if windows?
 
 end