few components with rspec3 syntax

spec/components/enum_spec.rb

@@ -6,33 +6,33 @@ describe Enum do
 
   describe ".[]" do
     it "looks up a number by symbol" do
-      enum[:princess_bubblegum].should == 3
+      expect(enum[:princess_bubblegum]).to eq(3)
     end
 
     it "looks up a symbol by number" do
-      enum[2].should == :finn
+      expect(enum[2]).to eq(:finn)
     end
   end
 
   describe ".valid?" do
     it "returns true if a key exists" do
-      enum.valid?(:finn).should == true
+      expect(enum.valid?(:finn)).to eq(true)
     end
 
     it "returns false if a key does not exist" do
-      enum.valid?(:obama).should == false
+      expect(enum.valid?(:obama)).to eq(false)
     end
   end
 
   describe ".only" do
     it "returns only the values we ask for" do
-      enum.only(:jake, :princess_bubblegum).should == { jake: 1, princess_bubblegum: 3 }
+      expect(enum.only(:jake, :princess_bubblegum)).to eq({ jake: 1, princess_bubblegum: 3 })
     end
   end
 
   describe ".except" do
     it "returns everything but the values we ask to delete" do
-      enum.except(:jake, :princess_bubblegum).should == { finn: 2, peppermint_butler: 4 }
+      expect(enum.except(:jake, :princess_bubblegum)).to eq({ finn: 2, peppermint_butler: 4 })
     end
   end
 end