1 files changed, 28 insertions, 0 deletions
diff --git a/test/ruby/test_argf.rb b/test/ruby/test_argf.rb
index a112cf3e84..26fe16061e 100644
--- a/test/ruby/test_argf.rb
+++ b/test/ruby/test_argf.rb
@@ -316,6 +316,34 @@ class TestArgf < Test::Unit::TestCase
     }
   end
 
+  def test_inplace_to_path
+    base = "argf-test"
+    name = "#{@tmpdir}/#{base}"
+    File.write(name, "foo")
+    stdout = $stdout
+    argf = ARGF.class.new(Struct.new(:to_path).new(name))
+    begin
+      result = argf.gets
+    ensure
+      $stdout = stdout
+      argf.close
+    end
+    assert_equal("foo", result)
+  end
+
+  def test_inplace_ascii_incompatible_path
+    base = "argf-\u{30c6 30b9 30c8}"
+    name = "#{@tmpdir}/#{base}"
+    File.write(name, "foo")
+    stdout = $stdout
+    argf = ARGF.class.new(name.encode(Encoding::UTF_16LE))
+    assert_raise(Encoding::CompatibilityError) do
+      argf.gets
+    end
+  ensure
+    $stdout = stdout
+  end
+
   def test_encoding
     ruby('-e', "#{<<~"{#"}\n#{<<~'};'}", @t1.path, @t2.path, @t3.path) do |f|
       {#