https://git.ruby-lang.org/ruby.git/commit/?id=dd60856f8d

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

Paths start with the root are absolute on cygwin, regardless the
drive letter.

diff --git a/test/ruby/test_file.rb b/test/ruby/test_file.rb
index 02f7464..96e2ca2 100644
--- a/test/ruby/test_file.rb
+++ b/test/ruby/test_file.rb
@@ -501,13 +501,16 @@ class TestFile < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_file.rb#L501
     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
-- 
cgit v0.10.2


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