feat(matrix): update query to handle tag and latest flag

Author: bethesque

lib/pact_broker/matrix/repository.rb

@@ -59,8 +59,9 @@ def find_all selectors
 
       def look_up_versions_for_tags(selectors)
         selectors.collect do | selector |
-          if selector[:latest_tag]
-            version = version_repository.find_by_pacticpant_name_and_latest_tag(selector[:pacticipant_name], selector[:latest_tag])
+          # resource validation currently stops tag being specified without latest=true
+          if selector[:tag] && selector[:latest]
+            version = version_repository.find_by_pacticpant_name_and_latest_tag(selector[:pacticipant_name], selector[:tag])
             # validation in resource should ensure we always have a version
             {
               pacticipant_name: selector[:pacticipant_name],

spec/lib/pact_broker/matrix/repository_spec.rb

@@ -235,7 +235,7 @@ def build_selectors(hash)
           let(:selectors) do
             [
               { pacticipant_name: "A", pacticipant_version_number: "1.2.3" },
-              { pacticipant_name: "B", latest_tag: "prod" }
+              { pacticipant_name: "B", latest: true, tag: "prod" }
             ]
           end