fix(verifications): do not print warning about missing pb:tag-version link when there are no tags configured

Author: bethesque

lib/pact/provider/verification_results/publish.rb

@@ -23,11 +23,14 @@ def initialize pact_source, verification_result
 
         def call
           if Pact.configuration.provider.publish_verification_results?
-            if tag_url('')
-              tag
-            else
-              Pact.configuration.error_stream.puts "WARN: Cannot tag provider version as there is no link named pb:tag-version in the pact JSON."
+            if Pact.configuration.provider.tags.any?
+              if tag_url('')
+                tag_versions
+              else
+                Pact.configuration.error_stream.puts "WARN: Cannot tag provider version as there is no link named pb:tag-version in the pact JSON."
+              end
             end
+
             if publication_url
               publish
             else
@@ -47,7 +50,7 @@ def tag_url tag
           href ? href.gsub('{tag}', tag) : nil
         end
 
-        def tag
+        def tag_versions
           Pact.configuration.provider.tags.each do | tag |
             uri = URI(tag_url(tag))
             request = build_request('Put', uri, nil, "Tagging provider version at")

spec/lib/pact/provider/verification_results/publish_spec.rb

@@ -85,6 +85,18 @@ module VerificationResults
                 end
               end
 
+              context "when there are no tags specified and there is no pb:tag-version link" do
+                before do
+                  pact_hash['_links'].delete('pb:tag-version')
+                end
+                let(:tags) { [] }
+
+                it "does not print a warning" do
+                  expect($stderr).to_not receive(:puts).with /WARN: Cannot tag provider version/
+                  subject
+                end
+              end
+
               context "when basic auth is configured on the pact URL" do
                 let(:basic_auth) { true }
                 it "sets the username and password for the pubication URL" do