Move CI job config validations to new classes

lib/ci/gitlab_ci_yaml_processor.rb

@@ -71,8 +71,6 @@ module Ci
       @ci_config.jobs.each do |name, param|
         add_job(name, param)
       end
-
-      raise ValidationError, "Please define at least one job" if @jobs.none?
     end
     def add_job(name, job)

lib/gitlab/ci/config/node/entry.rb

@@ -24,6 +24,7 @@ module Gitlab
             compose!
             process_nodes!
+            @validator.validate(:processed)
           end
           def leaf?

lib/gitlab/ci/config/node/jobs.rb

@@ -10,12 +10,27 @@ module Gitlab
           validations do
             validates :config, type: Hash
+            validate :jobs_presence, on: :processed
+
+            def jobs_presence
+              unless relevant?
+                errors.add(:config, 'should contain at least one visible job')
+              end
+            end
           end
           def nodes
             @config
           end
+          def relevant?
+            @nodes.values.any?(&:relevant?)
+          end
+
+          def leaf?
+            false
+          end
+
           private
           def create_node(key, essence)

spec/lib/ci/gitlab_ci_yaml_processor_spec.rb

@@ -1061,7 +1061,14 @@ EOT
         config = YAML.dump({ before_script: ["bundle update"] })
         expect do
           GitlabCiYamlProcessor.new(config, path)
-        end.to raise_error(GitlabCiYamlProcessor::ValidationError, "Please define at least one job")
+        end.to raise_error(GitlabCiYamlProcessor::ValidationError, "jobs config should contain at least one visible job")
+      end
+
+      it "returns errors if there are no visible jobs defined" do
+        config = YAML.dump({ before_script: ["bundle update"], '.hidden'.to_sym => {} })
+        expect do
+          GitlabCiYamlProcessor.new(config, path)
+        end.to raise_error(GitlabCiYamlProcessor::ValidationError, "jobs config should contain at least one visible job")
       end
       it "returns errors if job allow_failure parameter is not an boolean" do

spec/lib/gitlab/ci/config/node/global_spec.rb

@@ -108,7 +108,10 @@ describe Gitlab::Ci::Config::Node::Global do
           end
           context 'when deprecated types key defined' do
-            let(:hash) { { types: ['test', 'deploy'] } }
+            let(:hash) do
+              { types: ['test', 'deploy'],
+                rspec: { script: 'rspec' } }
+            end
             it 'returns array of types as stages' do
               expect(global.stages).to eq %w[test deploy]
@@ -174,7 +177,7 @@ describe Gitlab::Ci::Config::Node::Global do
     # details.
     #
     context 'when entires specified but not defined' do
-      let(:hash) { { variables: nil } }
+      let(:hash) { { variables: nil, rspec: { script: 'rspec' } } }
       before { global.process! }
       describe '#variables' do

spec/lib/gitlab/ci/config/node/jobs_spec.rb

@@ -4,17 +4,9 @@ describe Gitlab::Ci::Config::Node::Jobs do
   let(:entry) { described_class.new(config) }
   describe 'validations' do
-    before { entry.process! }
-
     context 'when entry config value is correct' do
       let(:config) { { rspec: { script: 'rspec' } } }
-      describe '#value' do
-        it 'returns key value' do
-          expect(entry.value).to eq(rspec: { script: 'rspec' })
-        end
-      end
-
       describe '#valid?' do
         it 'is valid' do
           expect(entry).to be_valid
@@ -23,15 +15,34 @@ describe Gitlab::Ci::Config::Node::Jobs do
     end
     context 'when entry value is not correct' do
-      context 'incorrect config value type' do
-        let(:config) { ['incorrect'] }
-        describe '#errors' do
-          it 'saves errors' do
+      describe '#errors' do
+        context 'incorrect config value type' do
+          let(:config) { ['incorrect'] }
+          it 'returns error about incorrect type' do
             expect(entry.errors)
               .to include 'jobs config should be a hash'
           end
         end
+
+        context 'when no visible jobs present' do
+          let(:config) { { '.hidden'.to_sym => {} } }
+
+          context 'when not processed' do
+            it 'is valid' do
+              expect(entry.errors).to be_empty
+            end
+          end
+
+          context 'when processed' do
+            before { entry.process! }
+
+            it 'returns error about no visible jobs defined' do
+              expect(entry.errors)
+                .to include 'jobs config should contain at least one visible job'
+            end
+          end
+        end
       end
     end
   end
@@ -45,6 +56,13 @@ describe Gitlab::Ci::Config::Node::Jobs do
         '.hidden'.to_sym => {} }
     end
+    describe '#value' do
+      it 'returns key value' do
+        expect(entry.value).to eq(rspec: { script: 'rspec' },
+                                  spinach: { script: 'spinach' })
+      end
+    end
+
     describe '#descendants' do
       it 'creates valid descendant nodes' do
         expect(entry.descendants.count).to eq 3