From dd60856f8ddaa0652bf019589f05705e00279b8c Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 12 Dec 2019 20:53:59 +0900
Subject: [PATCH] [cygwin] fix File.absolute_path? test

Paths start with the root are absolute on cygwin, regardless the
drive letter.
---
 test/ruby/test_file.rb | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/test/ruby/test_file.rb b/test/ruby/test_file.rb
index 02f7464599..96e2ca291f 100644
--- a/test/ruby/test_file.rb
+++ b/test/ruby/test_file.rb
@@ -501,13 +501,16 @@ class TestFile < Test::Unit::TestCase
     assert_file.not_absolute_path?("~")
     assert_file.not_absolute_path?("~user")
 
-    if /mswin|mingw/ =~ RUBY_PLATFORM
+    if /cygwin|mswin|mingw/ =~ RUBY_PLATFORM
       assert_file.absolute_path?("C:\\foo\\bar")
       assert_file.absolute_path?("C:/foo/bar")
-      assert_file.not_absolute_path?("/foo/bar\\baz")
     else
       assert_file.not_absolute_path?("C:\\foo\\bar")
       assert_file.not_absolute_path?("C:/foo/bar")
+    end
+    if /mswin|mingw/ =~ RUBY_PLATFORM
+      assert_file.not_absolute_path?("/foo/bar\\baz")
+    else
       assert_file.absolute_path?("/foo/bar\\baz")
     end
   end