Rewrite some of the .stub calls to use allow

spec/draper/decoratable_spec.rb

@@ -162,7 +162,7 @@ module Draper
 
       context "for ActiveModel classes" do
         it "infers the decorator from the model name" do
-          Product.stub(:model_name).and_return("Other")
+          allow(Product).to receive(:model_name){"Other"}
 
           expect(Product.decorator_class).to be OtherDecorator
         end

spec/draper/factory_spec.rb

@@ -99,7 +99,7 @@ module Draper
         options = {foo: "bar"}
         worker = Factory::Worker.new(double, object)
         decorator = ->(*){}
-        worker.stub decorator: decorator
+        allow(worker).to receive(:decorator){ decorator }        
 
         decorator.should_receive(:call).with(object, options).and_return(:decorated)
         expect(worker.call(options)).to be :decorated
@@ -227,8 +227,8 @@ module Draper
             it "returns the .decorate_collection method from the object's decorator" do
               object = []
               decorator_class = Class.new(Decorator)
-              object.stub decorator_class: decorator_class
-              object.stub decorate: nil
+              allow(object).to receive(:decorator_class){ decorator_class }
+              allow(object).to receive(:decorate){ nil }
               worker = Factory::Worker.new(nil, object)
 
               decorator_class.should_receive(:decorate_collection).with(object, foo: "bar", with: nil).and_return(:decorated)

spec/draper/helper_proxy_spec.rb

@@ -52,7 +52,7 @@ module Draper
         view_context = double
         helper_proxy = HelperProxy.new(view_context)
 
-        view_context.stub(:capture) { |*args, &block| [*args, block.call] }
+        allow(view_context).to receive(:capture) { |*args, &block| [*args, block.call] }
         expect(helper_proxy.capture(:first_arg, :second_arg){:yielded}).to \
           be_eql [:first_arg, :second_arg, :yielded]
       end

spec/generators/decorator/decorator_generator_spec.rb

@@ -40,8 +40,9 @@ describe Rails::Generators::DecoratorGenerator do
 
       context "with an ApplicationDecorator" do
         before do
-          Object.any_instance.stub(:require).with("application_decorator").and_return (
-            stub_const "ApplicationDecorator", Class.new)
+          allow_any_instance_of(Object).to receive(:require).with("application_decorator").and_return(
+            stub_const "ApplicationDecorator", Class.new
+          )
         end
 
         before { run_generator %w(YourModel) }