1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/library/readline/history/shift_spec.rb b/spec/ruby/library/readline/history/shift_spec.rb
new file mode 100644
index 0000000000..d852480a2a
--- /dev/null
+++ b/spec/ruby/library/readline/history/shift_spec.rb
@@ -0,0 +1,23 @@
+require_relative '../spec_helper'
+
+with_feature :readline do
+  describe "Readline::HISTORY.shift" do
+    it "returns nil when the history is empty" do
+      Readline::HISTORY.shift.should == nil
+    end
+
+    it "returns and removes the first item from the history" do
+      Readline::HISTORY.push("1", "2", "3")
+      Readline::HISTORY.size.should == 3
+
+      Readline::HISTORY.shift.should == "1"
+      Readline::HISTORY.size.should == 2
+
+      Readline::HISTORY.shift.should == "2"
+      Readline::HISTORY.size.should == 1
+
+      Readline::HISTORY.shift.should == "3"
+      Readline::HISTORY.size.should == 0
+    end
+  end
+end