1 files changed, 20 insertions, 0 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index af7f428ec4..73a16de4cc 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1702,4 +1702,24 @@ End
       GC.start
     end
   end
+
+  def test_readlines_limit_0
+    bug4024 = '[ruby-dev:42538]'
+    t = make_tempfile
+    open(t.path, "r") do |io|
+      assert_raise(ArgumentError, bug4024) do
+        io.readlines(0)
+      end
+    end
+  end
+
+  def test_each_line_limit_0
+    bug4024 = '[ruby-dev:42538]'
+    t = make_tempfile
+    open(t.path, "r") do |io|
+      assert_raise(ArgumentError, bug4024) do
+        io.each_line(0).next
+      end
+    end
+  end
 end