feat(pact resource): add link relation for all pact versions

Author: bethesque

lib/pact_broker/api/decorators/pact_decorator.rb

@@ -63,6 +63,13 @@ def to_hash(options = {})
           }
         end
 
+        link :'pb:all-pact-versions' do | options |
+          {
+            title: "All versions of this pact",
+            href: pact_versions_url(represented.consumer.name, represented.provider.name, options.fetch(:base_url))
+          }
+        end
+
         link :'pb:latest-untagged-pact-version' do | options |
           {
             title: "Pact",

spec/lib/pact_broker/api/decorators/pact_decorator_spec.rb

@@ -85,6 +85,11 @@ module Decorators
             expect(subject[:_links][:'pb:latest-pact-version'][:href]).to eq "http://example.org/pacts/provider/A%20Provider/consumer/A%20Consumer/latest"
           end
 
+          it "includes a link to all pact versions" do
+            expect(subject[:_links][:'pb:all-pact-versions'][:title]).to eq "All versions of this pact"
+            expect(subject[:_links][:'pb:all-pact-versions'][:href]).to eq "http://example.org/pacts/provider/A%20Provider/consumer/A%20Consumer/versions"
+          end
+
           it "includes a link to the pact version" do
             expect(subject[:_links][:'pb:consumer-version'][:title]).to eq "Consumer version"
             expect(subject[:_links][:'pb:consumer-version'][:name]).to eq "1234"