Fix invalid conditional in pipeline create service

app/services/ci/create_pipeline_service.rb

@@ -42,7 +42,7 @@ module Ci
         return pipeline
       end
 
-      if pipeline.has_stage_seeds?
+      unless pipeline.has_stage_seeds?
         return error('No stages / jobs for this pipeline.')
       end
 

spec/lib/gitlab/ci/stage/seed_spec.rb

@@ -21,10 +21,9 @@ describe Gitlab::Ci::Stage::Seed do
   describe '#builds' do
     it 'returns hash attributes of all builds' do
       expect(subject.builds.size).to eq 2
-      expect(subject.builds).to all(include(pipeline: pipeline))
-      expect(subject.builds).to all(include(project: pipeline.project))
       expect(subject.builds).to all(include(ref: 'master'))
       expect(subject.builds).to all(include(tag: false))
+      expect(subject.builds).to all(include(project: pipeline.project))
       expect(subject.builds)
         .to all(include(trigger_request: pipeline.trigger_requests.first))
     end

spec/services/ci/create_pipeline_service_spec.rb

@@ -9,10 +9,10 @@ describe Ci::CreatePipelineService, :services do
   end
 
   describe '#execute' do
-    def execute_service(after: project.commit.id, message: 'Message', ref: 'refs/heads/master')
+    def execute_service(after_sha: project.commit.id, message: 'Message', ref: 'refs/heads/master')
       params = { ref: ref,
                  before: '00000000',
-                 after: after,
+                 after: after_sha,
                  commits: [{ message: message }] }
 
       described_class.new(project, user, params).execute
@@ -30,6 +30,7 @@ describe Ci::CreatePipelineService, :services do
       it 'creates a pipeline' do
         expect(pipeline).to be_kind_of(Ci::Pipeline)
         expect(pipeline).to be_valid
+        expect(pipeline).to be_persisted
         expect(pipeline).to eq(project.pipelines.last)
         expect(pipeline).to have_attributes(user: user)
         expect(pipeline).to have_attributes(status: 'pending')