1 files changed, 16 insertions, 6 deletions
diff --git a/spec/ruby/core/set/add_spec.rb b/spec/ruby/core/set/add_spec.rb
index 0fe1a0926c..1a018b186a 100644
--- a/spec/ruby/core/set/add_spec.rb
+++ b/spec/ruby/core/set/add_spec.rb
@@ -1,8 +1,18 @@
 require_relative '../../spec_helper'
-require_relative 'shared/add'
 
 describe "Set#add" do
-  it_behaves_like :set_add, :add
+  before :each do
+    @set = Set.new
+  end
+
+  it "adds the passed Object to self" do
+    @set.add("dog")
+    @set.should.include?("dog")
+  end
+
+  it "returns self" do
+    @set.add("dog").should.equal?(@set)
+  end
 end
 
 describe "Set#add?" do
@@ -12,22 +22,22 @@ describe "Set#add?" do
 
   it "adds the passed Object to self" do
     @set.add?("cat")
-    @set.should include("cat")
+    @set.should.include?("cat")
   end
 
   it "returns self when the Object has not yet been added to self" do
-    @set.add?("cat").should equal(@set)
+    @set.add?("cat").should.equal?(@set)
   end
 
   it "returns nil when the Object has already been added to self" do
     @set.add?("cat")
-    @set.add?("cat").should be_nil
+    @set.add?("cat").should == nil
   end
 
   it "raises RuntimeError when called during iteration" do
     set = Set[:a, :b, :c, :d, :e, :f]
     set.each do |_m|
-      -> { set << 1 }.should raise_error(RuntimeError, /iteration/)
+      -> { set << 1 }.should.raise(RuntimeError, /iteration/)
     end
     set.should == Set[:a, :b, :c, :d, :e, :f]
   end