Use subject and described_class in specs

spec/paginators/none_spec.rb

@@ -1,18 +1,16 @@
 require "spec_helper"
 
 describe Irwi::Paginators::None do
-  let(:p) { Irwi::Paginators::None.new }
-
   specify "should paginate collection - call find" do
     coll = double "Collection"
     expect(coll).to receive(:all).and_return("full collection")
 
-    expect(p.paginate(coll, page: 10)).to eq("full collection")
+    expect(subject.paginate(coll, page: 10)).to eq("full collection")
   end
 
   specify "should render paginated section" do
     a = nil
-    p.paginated_section "view", "collection" do
+    subject.paginated_section "view", "collection" do
       a = true
     end
     expect(a).to be true

spec/paginators/will_paginate_spec.rb

@@ -1,13 +1,11 @@
 require "spec_helper"
 
 describe Irwi::Paginators::WillPaginate do
-  let(:p) { Irwi::Paginators::WillPaginate.new }
-
   specify "should paginate collection" do
     coll = double "Collection"
     expect(coll).to receive(:paginate).with(page: 15).and_return("paginated_collection")
 
-    expect(p.paginate(coll, page: 15)).to eq("paginated_collection")
+    expect(subject.paginate(coll, page: 15)).to eq("paginated_collection")
   end
 
   specify "should render paginated collection" do
@@ -16,6 +14,6 @@
     view = double "View"
     expect(view).to receive(:paginated_section).with(coll, &block).and_return("result")
 
-    expect(p.paginated_section(view, coll, &block)).to eq("result")
+    expect(subject.paginated_section(view, coll, &block)).to eq("result")
   end
 end

spec/support/template_finder_spec.rb

@@ -7,7 +7,7 @@
     subject { Object.new }
 
     before(:each) do
-      subject.send :extend, Irwi::Support::TemplateFinder
+      subject.send :extend, described_class
 
       allow(subject).to receive(:controller_path).and_return('my_controller')
     end