[ruby/pathname] Raise the previous message

Fix ruby/pathname#75.

https://github.com/ruby/pathname/commit/5ba967b274

2 files changed, 3 insertions, 1 deletions

diff --git a/pathname_builtin.rb b/pathname_builtin.rb
index 17299d4291..878603d4d6 100644
--- a/pathname_builtin.rb
+++ b/pathname_builtin.rb
@@ -213,6 +213,8 @@ class Pathname
   #
   def initialize(path)
     @path = File.path(path).dup
+  rescue TypeError => e
+    raise e.class, "Pathname.new requires a String, #to_path or #to_str", cause: nil
   end
 
   #
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 10ab154220..3114d1458d 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -486,7 +486,7 @@ class TestPathname < Test::Unit::TestCase
     assert_equal(p1, p2)
 
     obj = Object.new
-    assert_raise(TypeError) { Pathname.new(obj) }
+    assert_raise_with_message(TypeError, /#to_path or #to_str/) { Pathname.new(obj) }
 
     obj = Object.new
     def obj.to_path; "a/path"; end