diff --git a/Gemfile.lock b/Gemfile.lock
index 08001379910..f06c4a4165f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -332,7 +332,7 @@ GEM
       github-markup (~> 1.3.3)
       gollum-grit_adapter (~> 1.0)
       nokogiri (~> 1.6.4)
-      rouge (~> 1.7.4)
+      rouge (~> 1.10.1)
       sanitize (~> 2.1.0)
       stringex (~> 2.5.1)
     gon (6.0.1)
@@ -610,7 +610,7 @@ GEM
       netrc (~> 0.7)
     rinku (1.7.3)
     rotp (2.1.1)
-    rouge (1.7.7)
+    rouge (1.10.1)
     rqrcode (0.7.0)
       chunky_png
     rqrcode-rails3 (0.1.7)
diff --git a/app/controllers/abuse_reports_controller.rb b/app/controllers/abuse_reports_controller.rb
index d8e90594332..20bc5173f1d 100644
--- a/app/controllers/abuse_reports_controller.rb
+++ b/app/controllers/abuse_reports_controller.rb
@@ -10,7 +10,7 @@ class AbuseReportsController < ApplicationController
 
     if @abuse_report.save
       if current_application_settings.admin_notification_email.present?
-        AbuseReportMailer.deliver_later.notify(@abuse_report.id)
+        AbuseReportMailer.notify(@abuse_report.id).deliver_later
       end
 
       message = "Thank you for your report. A GitLab administrator will look into it shortly."
diff --git a/app/models/project_services/ci/mail_service.rb b/app/models/project_services/ci/mail_service.rb
index bdc85667e9d..bb961d06972 100644
--- a/app/models/project_services/ci/mail_service.rb
+++ b/app/models/project_services/ci/mail_service.rb
@@ -64,9 +64,9 @@ module Ci
       build.project_recipients.each do |recipient|
         case build.status.to_sym
         when :success
-          mailer.build_success_email(build.id, recipient)
+          mailer.build_success_email(build.id, recipient).deliver_later
         when :failed
-          mailer.build_fail_email(build.id, recipient)
+          mailer.build_fail_email(build.id, recipient).deliver_later
         end
       end
     end
@@ -78,7 +78,7 @@ module Ci
     end
 
     def mailer
-      Ci::Notify.deliver_later
+      Ci::Notify
     end
   end
 end
diff --git a/app/views/ci/admin/runners/show.html.haml b/app/views/ci/admin/runners/show.html.haml
index 1498db46a80..fd3d33d657b 100644
--- a/app/views/ci/admin/runners/show.html.haml
+++ b/app/views/ci/admin/runners/show.html.haml
@@ -37,7 +37,7 @@
     = label_tag :tag_list, class: 'control-label' do
       Tags
     .col-sm-10
-      = f.text_field :tag_list, class: 'form-control'
+      = f.text_field :tag_list, value: @runner.tag_list.to_s, class: 'form-control'
       .help-block You can setup builds to only use runners with specific tags
   .form-actions
     = f.submit 'Save', class: 'btn btn-save'
diff --git a/app/views/ci/notify/build_success_email.html.haml b/app/views/ci/notify/build_success_email.html.haml
index 24c439e50eb..6ef1fd67d89 100644
--- a/app/views/ci/notify/build_success_email.html.haml
+++ b/app/views/ci/notify/build_success_email.html.haml
@@ -8,7 +8,7 @@
     = @project.name
 
 %p
-  Commit: #{link_to @build.short_sha, namespace_project_commit_path(@build.gl_project.namespace, @build.gl_project, @build.sha)}
+  Commit: #{link_to @build.short_sha, namespace_project_commit_url(@build.gl_project.namespace, @build.gl_project, @build.sha)}
 %p
   Author: #{@build.commit.git_author_name}
 %p
diff --git a/app/views/projects/edit.html.haml b/app/views/projects/edit.html.haml
index 3ebc175648e..0c10de1604c 100644
--- a/app/views/projects/edit.html.haml
+++ b/app/views/projects/edit.html.haml
@@ -35,7 +35,7 @@
           .form-group
             = f.label :tag_list, "Tags", class: 'control-label'
             .col-sm-10
-              = f.text_field :tag_list, maxlength: 2000, class: "form-control"
+              = f.text_field :tag_list, value: @project.tag_list.to_s, maxlength: 2000, class: "form-control"
               %p.help-block Separate tags with commas.
 
           %fieldset.features
diff --git a/app/views/projects/runners/edit.html.haml b/app/views/projects/runners/edit.html.haml
index dde9e448cb9..a0324701690 100644
--- a/app/views/projects/runners/edit.html.haml
+++ b/app/views/projects/runners/edit.html.haml
@@ -23,7 +23,7 @@
     = label_tag :tag_list, class: 'control-label' do
       Tags
     .col-sm-10
-      = f.text_field :tag_list, class: 'form-control'
+      = f.text_field :tag_list, value: @runner.tag_list.to_s, class: 'form-control'
       .help-block You can setup jobs to only use runners with specific tags
   .form-actions
     = f.submit 'Save', class: 'btn btn-save'
diff --git a/app/workers/email_receiver_worker.rb b/app/workers/email_receiver_worker.rb
index 1df8de1db79..f2649e38eb3 100644
--- a/app/workers/email_receiver_worker.rb
+++ b/app/workers/email_receiver_worker.rb
@@ -46,6 +46,6 @@ class EmailReceiverWorker
       return
     end
 
-    EmailRejectionMailer.deliver_later.rejection(reason, raw, can_retry)
+    EmailRejectionMailer.rejection(reason, raw, can_retry).deliver_later
   end
 end
diff --git a/lib/gitlab/github_import/client.rb b/lib/gitlab/github_import/client.rb
index 270cbcd9ccd..74d1529e1ff 100644
--- a/lib/gitlab/github_import/client.rb
+++ b/lib/gitlab/github_import/client.rb
@@ -46,7 +46,7 @@ module Gitlab
       end
 
       def github_options
-        OmniAuth::Strategies::GitHub.default_options[:client_options].symbolize_keys
+        OmniAuth::Strategies::GitHub.default_options[:client_options].to_h.symbolize_keys
       end
     end
   end
diff --git a/lib/gitlab/gitlab_import/client.rb b/lib/gitlab/gitlab_import/client.rb
index 9c00896c913..86fb6c51765 100644
--- a/lib/gitlab/gitlab_import/client.rb
+++ b/lib/gitlab/gitlab_import/client.rb
@@ -75,7 +75,7 @@ module Gitlab
       end
 
       def gitlab_options
-        OmniAuth::Strategies::GitLab.default_options[:client_options].symbolize_keys
+        OmniAuth::Strategies::GitLab.default_options[:client_options].to_h.symbolize_keys
       end
     end
   end
diff --git a/spec/controllers/abuse_reports_controller_spec.rb b/spec/controllers/abuse_reports_controller_spec.rb
index 0faab8d7ff0..15824a1c67f 100644
--- a/spec/controllers/abuse_reports_controller_spec.rb
+++ b/spec/controllers/abuse_reports_controller_spec.rb
@@ -18,27 +18,31 @@ describe AbuseReportsController do
       end
 
       it "sends a notification email" do
-        post :create,
-          abuse_report: {
-            user_id: user.id,
-            message: message
-          }
-
-        email = ActionMailer::Base.deliveries.last
-
-        expect(email.to).to eq([admin_email])
-        expect(email.subject).to include(user.username)
-        expect(email.text_part.body).to include(message)
-      end
-
-      it "saves the abuse report" do
-        expect do
+        perform_enqueued_jobs do
           post :create,
             abuse_report: {
               user_id: user.id,
               message: message
             }
-        end.to change { AbuseReport.count }.by(1)
+
+          email = ActionMailer::Base.deliveries.last
+
+          expect(email.to).to eq([admin_email])
+          expect(email.subject).to include(user.username)
+          expect(email.text_part.body).to include(message)
+        end
+      end
+
+      it "saves the abuse report" do
+        perform_enqueued_jobs do
+          expect do
+            post :create,
+              abuse_report: {
+                user_id: user.id,
+                message: message
+              }
+          end.to change { AbuseReport.count }.by(1)
+        end
       end
     end
 
diff --git a/spec/features/admin/admin_users_spec.rb b/spec/features/admin/admin_users_spec.rb
index 4c756a8e732..c6b6ac58acb 100644
--- a/spec/features/admin/admin_users_spec.rb
+++ b/spec/features/admin/admin_users_spec.rb
@@ -87,7 +87,7 @@ describe "Admin::Users", feature: true  do
     end
 
     it "should call send mail" do
-      expect(Notify).to receive(:new_user_email)
+      expect_any_instance_of(NotificationService).to receive(:new_user)
 
       click_button "Create user"
     end
diff --git a/spec/helpers/application_helper_spec.rb b/spec/helpers/application_helper_spec.rb
index 1dfae0fbd3f..4b8000ecc44 100644
--- a/spec/helpers/application_helper_spec.rb
+++ b/spec/helpers/application_helper_spec.rb
@@ -59,7 +59,7 @@ describe ApplicationHelper do
 
       avatar_url = "http://localhost/uploads/project/avatar/#{project.id}/banana_sample.gif"
       expect(helper.project_icon("#{project.namespace.to_param}/#{project.to_param}").to_s).
-        to eq "<img alt=\"Banana sample\" src=\"#{avatar_url}\" />"
+        to eq "<img src=\"#{avatar_url}\" alt=\"Banana sample\" />"
     end
 
     it 'should give uploaded icon when present' do
diff --git a/spec/lib/gitlab/markdown/label_reference_filter_spec.rb b/spec/lib/gitlab/markdown/label_reference_filter_spec.rb
index fc21b65a843..ae286c8be2b 100644
--- a/spec/lib/gitlab/markdown/label_reference_filter_spec.rb
+++ b/spec/lib/gitlab/markdown/label_reference_filter_spec.rb
@@ -71,7 +71,7 @@ module Gitlab::Markdown
         doc = filter("See #{reference}")
 
         expect(doc.css('a').first.attr('href')).to eq urls.
-          namespace_project_issues_url(project.namespace, project, label_name: label.name)
+          namespace_project_issues_path(project.namespace, project, label_name: label.name)
       end
 
       it 'links with adjacent text' do
@@ -94,7 +94,7 @@ module Gitlab::Markdown
         doc = filter("See #{reference}")
 
         expect(doc.css('a').first.attr('href')).to eq urls.
-          namespace_project_issues_url(project.namespace, project, label_name: label.name)
+          namespace_project_issues_path(project.namespace, project, label_name: label.name)
         expect(doc.text).to eq 'See gfm'
       end
 
@@ -118,7 +118,7 @@ module Gitlab::Markdown
         doc = filter("See #{reference}")
 
         expect(doc.css('a').first.attr('href')).to eq urls.
-          namespace_project_issues_url(project.namespace, project, label_name: label.name)
+          namespace_project_issues_path(project.namespace, project, label_name: label.name)
         expect(doc.text).to eq 'See gfm references'
       end
 
diff --git a/spec/models/ci/project_services/mail_service_spec.rb b/spec/models/ci/project_services/mail_service_spec.rb
index d9b3d34ff15..c03be3ef75f 100644
--- a/spec/models/ci/project_services/mail_service_spec.rb
+++ b/spec/models/ci/project_services/mail_service_spec.rb
@@ -44,13 +44,10 @@ describe Ci::MailService do
       end
 
       it do
-        should_email("git@example.com")
-        mail.execute(build)
-      end
-
-      def should_email(email)
-        expect(Ci::Notify).to receive(:build_fail_email).with(build.id, email)
-        expect(Ci::Notify).not_to receive(:build_success_email).with(build.id, email)
+        perform_enqueued_jobs do
+          expect{ mail.execute(build) }.to change{ ActionMailer::Base.deliveries.size }.by(1)
+          expect(ActionMailer::Base.deliveries.last.to).to eq(["git@example.com"])
+        end
       end
     end
 
@@ -67,13 +64,10 @@ describe Ci::MailService do
       end
 
       it do
-        should_email("git@example.com")
-        mail.execute(build)
-      end
-
-      def should_email(email)
-        expect(Ci::Notify).to receive(:build_success_email).with(build.id, email)
-        expect(Ci::Notify).not_to receive(:build_fail_email).with(build.id, email)
+        perform_enqueued_jobs do
+          expect{ mail.execute(build) }.to change{ ActionMailer::Base.deliveries.size }.by(1)
+          expect(ActionMailer::Base.deliveries.last.to).to eq(["git@example.com"])
+        end
       end
     end
 
@@ -95,14 +89,12 @@ describe Ci::MailService do
       end
 
       it do
-        should_email("git@example.com")
-        should_email("jeroen@example.com")
-        mail.execute(build)
-      end
-
-      def should_email(email)
-        expect(Ci::Notify).to receive(:build_success_email).with(build.id, email)
-        expect(Ci::Notify).not_to receive(:build_fail_email).with(build.id, email)
+        perform_enqueued_jobs do
+          expect{ mail.execute(build) }.to change{ ActionMailer::Base.deliveries.size }.by(2)
+          expect(
+            ActionMailer::Base.deliveries.map(&:to).flatten
+          ).to include("git@example.com", "jeroen@example.com")
+        end
       end
     end
 
@@ -124,14 +116,11 @@ describe Ci::MailService do
       end
 
       it do
-        should_email(commit.git_author_email)
-        should_email("jeroen@example.com")
-        mail.execute(build) if mail.can_execute?(build)
-      end
-
-      def should_email(email)
-        expect(Ci::Notify).not_to receive(:build_success_email).with(build.id, email)
-        expect(Ci::Notify).not_to receive(:build_fail_email).with(build.id, email)
+        perform_enqueued_jobs do
+          expect do
+            mail.execute(build) if mail.can_execute?(build)
+          end.to_not change{ ActionMailer::Base.deliveries.size }
+        end
       end
     end
 
@@ -177,14 +166,11 @@ describe Ci::MailService do
 
       it do
         Ci::Build.retry(build)
-        should_email(commit.git_author_email)
-        should_email("jeroen@example.com")
-        mail.execute(build) if mail.can_execute?(build)
-      end
-
-      def should_email(email)
-        expect(Ci::Notify).not_to receive(:build_success_email).with(build.id, email)
-        expect(Ci::Notify).not_to receive(:build_fail_email).with(build.id, email)
+        perform_enqueued_jobs do
+          expect do
+            mail.execute(build) if mail.can_execute?(build)
+          end.to_not change{ ActionMailer::Base.deliveries.size }
+        end
       end
     end
   end
diff --git a/spec/models/project_services/jira_service_spec.rb b/spec/models/project_services/jira_service_spec.rb
index ddd2cce212c..576f5fc79eb 100644
--- a/spec/models/project_services/jira_service_spec.rb
+++ b/spec/models/project_services/jira_service_spec.rb
@@ -94,9 +94,9 @@ describe JiraService do
       end
 
       it 'should be prepopulated with the settings' do
-        expect(@service.properties[:project_url]).to eq('http://jira.sample/projects/project_a')
-        expect(@service.properties[:issues_url]).to eq("http://jira.sample/issues/:id")
-        expect(@service.properties[:new_issue_url]).to eq("http://jira.sample/projects/project_a/issues/new")
+        expect(@service.properties["project_url"]).to eq('http://jira.sample/projects/project_a')
+        expect(@service.properties["issues_url"]).to eq("http://jira.sample/issues/:id")
+        expect(@service.properties["new_issue_url"]).to eq("http://jira.sample/projects/project_a/issues/new")
       end
     end
   end
diff --git a/spec/workers/email_receiver_worker_spec.rb b/spec/workers/email_receiver_worker_spec.rb
index 65a8d7d9197..de40a6f78af 100644
--- a/spec/workers/email_receiver_worker_spec.rb
+++ b/spec/workers/email_receiver_worker_spec.rb
@@ -21,12 +21,14 @@ describe EmailReceiverWorker do
       end
 
       it "sends out a rejection email" do
-        described_class.new.perform(raw_message)
+        perform_enqueued_jobs do
+          described_class.new.perform(raw_message)
 
-        email = ActionMailer::Base.deliveries.last
-        expect(email).not_to be_nil
-        expect(email.to).to eq(["jake@adventuretime.ooo"])
-        expect(email.subject).to include("Rejected")
+          email = ActionMailer::Base.deliveries.last
+          expect(email).not_to be_nil
+          expect(email.to).to eq(["jake@adventuretime.ooo"])
+          expect(email.subject).to include("Rejected")
+        end
       end
     end
   end