Update to ruby/spec@e7dc804

1 files changed, 13 insertions, 0 deletions

diff --git a/spec/ruby/core/io/initialize_spec.rb b/spec/ruby/core/io/initialize_spec.rb
index ba5bc117b7..28fd7af7ab 100644
--- a/spec/ruby/core/io/initialize_spec.rb
+++ b/spec/ruby/core/io/initialize_spec.rb
@@ -27,6 +27,19 @@ describe "IO#initialize" do
     @io.fileno.should == fd
   end
 
+  ruby_version_is "3.0" do
+    it "accepts options as keyword arguments" do
+      fd = new_fd @name, "w:utf-8"
+
+      @io.send(:initialize, fd, "w", flags: File::CREAT)
+      @io.fileno.should == fd
+
+      -> {
+        @io.send(:initialize, fd, "w", {flags: File::CREAT})
+      }.should raise_error(ArgumentError, "wrong number of arguments (given 3, expected 1..2)")
+    end
+  end
+
   it "raises a TypeError when passed an IO" do
     -> { @io.send :initialize, STDOUT, 'w' }.should raise_error(TypeError)
   end