Add test for raising TypeError instead of segfault

ruby · Mar 27, 2021 · e29b49e · e29b49e
1 parent a71f7d8
commit e29b49e
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
@@ -1067,6 +1067,21 @@ def test_expand_path
 
   def test_split
     assert_equal([Pathname("dirname"), Pathname("basename")], Pathname("dirname/basename").split)
+
+    assert_separately([], <<-'end;')
+      require 'pathname'
+
+      mod = Module.new do
+        def split(_arg)
+        end
+      end
+
+      File.singleton_class.prepend(mod)
+
+      assert_raise(TypeError) do
+        Pathname('/').split
+      end
+    end;
   end
 
   def test_blockdev?