fix(metrics): correct the query for pactRevisionsPerConsumerVersion

PACT-1606

lib/pact_broker/metrics/service.rb

@@ -101,8 +101,8 @@ def interactions_counts
       end
 
       def pact_revision_counts
-        query = "select revision_count as number_of_revisions, count(consumer_version_id) as consumer_version_count
-          from (select consumer_version_id, count(*) as revision_count from pact_publications group by consumer_version_id) foo
+        query = "select revision_count as number_of_revisions, count(*) as consumer_version_count
+          from (select count(*) as revision_count from pact_publications group by consumer_version_id, provider_id) foo
           group by revision_count
           order by 1"
         PactBroker::Pacts::PactPublication.db[query].all.each_with_object({}) { |row, hash| hash[row[:number_of_revisions]] = row[:consumer_version_count] }

spec/lib/pact_broker/metrics/service_spec.rb

@@ -121,20 +121,23 @@ module Service
 
         describe "pactRevisionsPerPactPublication" do
           before do
-            td.create_pact_with_hierarchy
+            td.create_pact_with_hierarchy("Foo", "1", "Bar")
               .comment("this consumer version will have 3 revisions")
               .revise_pact
               .revise_pact
               .create_consumer_version
               .create_pact
               .comment("this consumer version will have 1 revision")
               .revise_pact
+              .create_pact_with_hierarchy("Foo", "1", "Bar2", td.random_json_content("Foo", "Bar2"))
+              .create_pact_with_hierarchy("Foo", "2", "Bar",  td.random_json_content("Foo", "Bar"))
           end
 
           let(:distribution) { subject[:pactRevisionsPerConsumerVersion][:distribution] }
 
           it "returns a distribution of pact revisions per consumer version" do
-            expect(distribution).to eq(2 => 1, 3 => 1)
+            # numberOfRevisions => countOfPactsWithThisNumberOfRevisions
+            expect(distribution).to eq({ 1 => 2, 2 => 1, 3 => 1 })
           end
         end
       end