1 files changed, 23 insertions, 0 deletions
diff --git a/spec/ruby/core/hash/shared/less_than.rb b/spec/ruby/core/hash/shared/less_than.rb
new file mode 100644
index 0000000000..cdc6f14546
--- /dev/null
+++ b/spec/ruby/core/hash/shared/less_than.rb
@@ -0,0 +1,23 @@
+describe :hash_less_than, shared: true do
+  before do
+    @h1 = { a: 1, b: 2 }
+    @h2 = { a: 1, b: 2, c: 3 }
+  end
+
+  it "returns true if self is a subset of the other hash" do
+    @h1.send(@method, @h2).should be_true
+  end
+
+  it "returns false if self is not a subset of the other hash" do
+    @h2.send(@method, @h1).should be_false
+  end
+
+  it "converts the right operand to a hash before comparing" do
+    o = Object.new
+    def o.to_hash
+      { a: 1, b: 2, c: 3 }
+    end
+
+    @h1.send(@method, o).should be_true
+  end
+end