Raise the previous message

lib/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
 
   #

test/pathname/test_pathname.rb

@@ -485,6 +485,13 @@ def test_initialize
     p2 = Pathname.new(p1)
     assert_equal(p1, p2)
 
+    obj = Object.new
+    assert_raise_with_message(TypeError, /#to_path or #to_str/) { Pathname.new(obj) }
+
+    obj = Object.new
+    def obj.to_path; "a/path"; end
+    assert_equal("a/path", Pathname.new(obj).to_s)
+
     obj = Object.new
     def obj.to_str; "a/b"; end
     assert_equal("a/b", Pathname.new(obj).to_s)
@@ -495,6 +502,12 @@ def test_initialize_nul
     assert_raise(ArgumentError) { Pathname.new("a\0") }
   end
 
+  def test_initialize_encoding
+    omit "https://github.com/jruby/jruby/issues/9120" if RUBY_ENGINE == "jruby"
+    omit "https://github.com/truffleruby/truffleruby/issues/4047" if RUBY_ENGINE == "truffleruby"
+    assert_raise(Encoding::CompatibilityError) { Pathname.new("a".encode(Encoding::UTF_32BE)) }
+  end
+
   def test_global_constructor
     p = Pathname.new('a')
     assert_equal(p, Pathname('a'))