1 files changed, 35 insertions, 0 deletions
diff --git a/spec/ruby/library/readline/history/element_set_spec.rb b/spec/ruby/library/readline/history/element_set_spec.rb
new file mode 100644
index 0000000000..0787b6343d
--- /dev/null
+++ b/spec/ruby/library/readline/history/element_set_spec.rb
@@ -0,0 +1,35 @@
+require_relative '../spec_helper'
+
+with_feature :readline do
+  describe "Readline::HISTORY.[]=" do
+    before :each do
+      Readline::HISTORY.push("1", "2", "3")
+    end
+
+    after :each do
+      Readline::HISTORY.pop
+      Readline::HISTORY.pop
+      Readline::HISTORY.pop
+    end
+
+    it "returns the new value for the passed index" do
+      (Readline::HISTORY[1] = "second test").should == "second test"
+    end
+
+    it "raises an IndexError when there is no item at the passed positive index" do
+      -> { Readline::HISTORY[10] = "test" }.should.raise(IndexError)
+    end
+
+    it "sets the item at the given index" do
+      Readline::HISTORY[0] = "test"
+      Readline::HISTORY[0].should == "test"
+
+      Readline::HISTORY[1] = "second test"
+      Readline::HISTORY[1].should == "second test"
+    end
+
+    it "raises an IndexError when there is no item at the passed negative index" do
+      -> { Readline::HISTORY[10] = "test" }.should.raise(IndexError)
+    end
+  end
+end