add some routing specs with a format to verify Blacklight::Engine.con…

…fig.identifier_constraint doesn't interfere

spec/routing/catalog_routing_spec.rb

@@ -19,6 +19,9 @@
     it "maps { :controller => 'catalog', :action => 'show', :id => 666 } to /catalog/666" do
       expect(:get => "/catalog/666").to route_to(:controller => 'catalog', :action => 'show', :id => "666")
     end
+    it "maps { :controller => 'catalog', :action => 'show', :id => 666, :format => 'json' } to /catalog/666.json" do
+      expect(:get => "/catalog/666.json").to route_to(:controller => 'catalog', :action => 'show', :id => "666", :format => 'json')
+    end
   end
 
   describe 'tracking' do
@@ -39,6 +42,10 @@
     it "routes ids with a literal ':'" do
       expect(post('/catalog/this:that/track')).to route_to('catalog#track', id: 'this:that')
     end
+
+    it "routes ids with a literal ':'" do
+      expect(post('/catalog/this:that/track.json')).to route_to('catalog#track', id: 'this:that', format: 'json')
+    end
   end