1 files changed, 24 insertions, 0 deletions
diff --git a/spec/ruby/library/net-ftp/closed_spec.rb b/spec/ruby/library/net-ftp/closed_spec.rb
new file mode 100644
index 0000000000..662ed2b71e
--- /dev/null
+++ b/spec/ruby/library/net-ftp/closed_spec.rb
@@ -0,0 +1,24 @@
+require_relative '../../spec_helper'
+
+ruby_version_is ""..."3.1" do
+  require_relative 'spec_helper'
+
+  describe "Net::FTP#closed?" do
+    before :each do
+      @socket = mock("Socket")
+
+      @ftp = Net::FTP.new
+      @ftp.instance_variable_set(:@sock, @socket)
+    end
+
+    it "returns true when the socket is closed" do
+      @socket.should_receive(:closed?).and_return(true)
+      @ftp.closed?.should be_true
+    end
+
+    it "returns true when the socket is nil" do
+      @ftp.instance_variable_set(:@sock, nil)
+      @ftp.closed?.should be_true
+    end
+  end
+end