1 files changed, 11 insertions, 0 deletions
diff --git a/spec/ruby/core/array/sample_spec.rb b/spec/ruby/core/array/sample_spec.rb
index 5b3aac9aed..d4e945152d 100644
--- a/spec/ruby/core/array/sample_spec.rb
+++ b/spec/ruby/core/array/sample_spec.rb
@@ -29,6 +29,10 @@ describe "Array#sample" do
     [4].sample(random: Random.new(42)).should equal(4)
   end
 
+  it "returns a single value when not passed a count and a Random class is given" do
+    [4].sample(random: Random).should equal(4)
+  end
+
   it "returns an empty Array when passed zero" do
     [4].sample(0).should == []
   end
@@ -110,6 +114,13 @@ describe "Array#sample" do
 
         -> { [1, 2].sample(random: random) }.should raise_error(RangeError)
       end
+
+      it "raises a RangeError if the value is greater than the Array size" do
+        random = mock("array_sample_random")
+        random.should_receive(:rand).and_return(3)
+
+        -> { [1, 2].sample(random: random) }.should raise_error(RangeError)
+      end
     end
   end