Backport API to V3

36 files changed, 1485 insertions, 28 deletions

diff --git a/lib/api/api.rb b/lib/api/api.rb
index 7aa95a4a3c1..b27ac3f1d15 100644
--- a/lib/api/api.rb
+++ b/lib/api/api.rb
@@ -5,10 +5,13 @@ module API
     version %w(v3 v4), using: :path
 
     version 'v3', using: :path do
+      mount ::API::V3::AwardEmoji
       mount ::API::V3::Boards
       mount ::API::V3::Branches
+      mount ::API::V3::BroadcastMessages
       mount ::API::V3::Commits
       mount ::API::V3::DeployKeys
+      mount ::API::V3::Environments
       mount ::API::V3::Files
       mount ::API::V3::Groups
       mount ::API::V3::Issues
@@ -21,12 +24,16 @@ module API
       mount ::API::V3::Projects
       mount ::API::V3::ProjectSnippets
       mount ::API::V3::Repositories
+      mount ::API::V3::Runners
+      mount ::API::V3::Services
       mount ::API::V3::Subscriptions
       mount ::API::V3::SystemHooks
       mount ::API::V3::Tags
-      mount ::API::V3::Todos
       mount ::API::V3::Templates
+      mount ::API::V3::Todos
+      mount ::API::V3::Triggers
       mount ::API::V3::Users
+      mount ::API::V3::Variables
     end
 
     before { allow_access_with_scope :api }
diff --git a/lib/api/v3/award_emoji.rb b/lib/api/v3/award_emoji.rb
new file mode 100644
index 00000000000..1e35283631f
--- /dev/null
+++ b/lib/api/v3/award_emoji.rb
@@ -0,0 +1,59 @@
+module API
+  module V3
+    class AwardEmoji < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+      AWARDABLES = %w[issue merge_request snippet].freeze
+
+      resource :projects do
+        AWARDABLES.each do |awardable_type|
+          awardable_string = awardable_type.pluralize
+          awardable_id_string = "#{awardable_type}_id"
+
+          params do
+            requires :id, type: String, desc: 'The ID of a project'
+            requires :"#{awardable_id_string}", type: Integer, desc: "The ID of an Issue, Merge Request or Snippet"
+          end
+
+          [":id/#{awardable_string}/:#{awardable_id_string}/award_emoji",
+           ":id/#{awardable_string}/:#{awardable_id_string}/notes/:note_id/award_emoji"].each do |endpoint|
+            desc 'Delete a +awardables+ award emoji' do
+              detail 'This feature was introduced in 8.9'
+              success ::API::Entities::AwardEmoji
+            end
+            params do
+              requires :award_id, type: Integer, desc: 'The ID of an award emoji'
+            end
+            delete "#{endpoint}/:award_id" do
+              award = awardable.award_emoji.find(params[:award_id])
+
+              unauthorized! unless award.user == current_user || current_user.admin?
+
+              present award.destroy, with: ::API::Entities::AwardEmoji
+            end
+          end
+        end
+      end
+
+      helpers do
+        def awardable
+          @awardable ||=
+            begin
+              if params.include?(:note_id)
+                note_id = params.delete(:note_id)
+
+                awardable.notes.find(note_id)
+              elsif params.include?(:issue_id)
+                user_project.issues.find(params[:issue_id])
+              elsif params.include?(:merge_request_id)
+                user_project.merge_requests.find(params[:merge_request_id])
+              else
+                user_project.snippets.find(params[:snippet_id])
+              end
+            end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/boards.rb b/lib/api/v3/boards.rb
index 31d708bc2c8..b1c2a3c59f2 100644
--- a/lib/api/v3/boards.rb
+++ b/lib/api/v3/boards.rb
@@ -44,6 +44,27 @@ module API
             authorize!(:read_board, user_project)
             present board_lists, with: ::API::Entities::List
           end
+
+          desc 'Delete a board list' do
+            detail 'This feature was introduced in 8.13'
+            success ::API::Entities::List
+          end
+          params do
+            requires :list_id, type: Integer, desc: 'The ID of a board list'
+          end
+          delete "/lists/:list_id" do
+            authorize!(:admin_list, user_project)
+
+            list = board_lists.find(params[:list_id])
+
+            service = ::Boards::Lists::DestroyService.new(user_project, current_user)
+
+            if service.execute(list)
+              present list, with: ::API::Entities::List
+            else
+              render_api_error!({ error: 'List could not be deleted!' }, 400)
+            end
+          end
         end
       end
     end
diff --git a/lib/api/v3/branches.rb b/lib/api/v3/branches.rb
index 51eb566cf7d..699e41b5537 100644
--- a/lib/api/v3/branches.rb
+++ b/lib/api/v3/branches.rb
@@ -19,6 +19,26 @@ module API
           present branches, with: ::API::Entities::RepoBranch, project: user_project
         end
 
+        desc 'Delete a branch'
+        params do
+          requires :branch, type: String, desc: 'The name of the branch'
+        end
+        delete ":id/repository/branches/:branch", requirements: { branch: /.+/ } do
+          authorize_push_project
+
+          result = DeleteBranchService.new(user_project, current_user).
+                   execute(params[:branch])
+
+          if result[:status] == :success
+            status(200)
+            {
+              branch_name: params[:branch]
+            }
+          else
+            render_api_error!(result[:message], result[:return_code])
+          end
+        end
+
         desc 'Delete all merged branches'
         delete ":id/repository/merged_branches" do
           DeleteMergedBranchesService.new(user_project, current_user).async_execute
diff --git a/lib/api/v3/broadcast_messages.rb b/lib/api/v3/broadcast_messages.rb
new file mode 100644
index 00000000000..417e4ad0b26
--- /dev/null
+++ b/lib/api/v3/broadcast_messages.rb
@@ -0,0 +1,31 @@
+module API
+  module V3
+    class BroadcastMessages < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+      before { authenticated_as_admin! }
+
+      resource :broadcast_messages do
+        helpers do
+          def find_message
+            BroadcastMessage.find(params[:id])
+          end
+        end
+
+        desc 'Delete a broadcast message' do
+          detail 'This feature was introduced in GitLab 8.12.'
+          success ::API::Entities::BroadcastMessage
+        end
+        params do
+          requires :id, type: Integer, desc: 'Broadcast message ID'
+        end
+        delete ':id' do
+          message = find_message
+
+          present message.destroy, with: ::API::Entities::BroadcastMessage
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/environments.rb b/lib/api/v3/environments.rb
new file mode 100644
index 00000000000..3effccfa708
--- /dev/null
+++ b/lib/api/v3/environments.rb
@@ -0,0 +1,29 @@
+module API
+  module V3
+    class Environments < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+
+      params do
+        requires :id, type: String, desc: 'The project ID'
+      end
+      resource :projects do
+        desc 'Deletes an existing environment' do
+          detail 'This feature was introduced in GitLab 8.11.'
+          success ::API::Entities::Environment
+        end
+        params do
+          requires :environment_id, type: Integer,  desc: 'The environment ID'
+        end
+        delete ':id/environments/:environment_id' do
+          authorize! :update_environment, user_project
+
+          environment = user_project.environments.find(params[:environment_id])
+
+          present environment.destroy, with: ::API::Entities::Environment
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/issues.rb b/lib/api/v3/issues.rb
index d0af09f0e1e..5d7dfabfcd6 100644
--- a/lib/api/v3/issues.rb
+++ b/lib/api/v3/issues.rb
@@ -226,6 +226,8 @@ module API
           not_found!('Issue') unless issue
 
           authorize!(:destroy_issue, issue)
+
+          status(200)
           issue.destroy
         end
       end
diff --git a/lib/api/v3/labels.rb b/lib/api/v3/labels.rb
index 5c3261311bf..41f45d244e3 100644
--- a/lib/api/v3/labels.rb
+++ b/lib/api/v3/labels.rb
@@ -13,6 +13,21 @@ module API
         get ':id/labels' do
           present available_labels, with: ::API::Entities::Label, current_user: current_user, project: user_project
         end
+
+        desc 'Delete an existing label' do
+          success ::API::Entities::Label
+        end
+        params do
+          requires :name, type: String, desc: 'The name of the label to be deleted'
+        end
+        delete ':id/labels' do
+          authorize! :admin_label, user_project
+
+          label = user_project.labels.find_by(title: params[:name])
+          not_found!('Label') unless label
+
+          present label.destroy, with: ::API::Entities::Label, current_user: current_user, project: user_project
+        end
       end
     end
   end
diff --git a/lib/api/v3/members.rb b/lib/api/v3/members.rb
index 19f276d5484..3d4972afd9d 100644
--- a/lib/api/v3/members.rb
+++ b/lib/api/v3/members.rb
@@ -119,6 +119,7 @@ module API
             # This is to ensure back-compatibility but 204 behavior should be used
             # for all DELETE endpoints in 9.0!
             if member.nil?
+              status(200  )
               { message: "Access revoked", id: params[:user_id].to_i }
             else
               ::Members::DestroyService.new(source, current_user, declared_params).execute
diff --git a/lib/api/v3/merge_requests.rb b/lib/api/v3/merge_requests.rb
index 129f9d850e9..c6574a9104b 100644
--- a/lib/api/v3/merge_requests.rb
+++ b/lib/api/v3/merge_requests.rb
@@ -103,6 +103,8 @@ module API
           merge_request = find_project_merge_request(params[:merge_request_id])
 
           authorize!(:destroy_merge_request, merge_request)
+
+          status(200)
           merge_request.destroy
         end
 
diff --git a/lib/api/v3/project_snippets.rb b/lib/api/v3/project_snippets.rb
index e03e941d30b..809ca4f37ba 100644
--- a/lib/api/v3/project_snippets.rb
+++ b/lib/api/v3/project_snippets.rb
@@ -121,6 +121,8 @@ module API
 
           authorize! :admin_project_snippet, snippet
           snippet.destroy
+
+          status(200)
         end
 
         desc 'Get a raw project snippet'
diff --git a/lib/api/v3/projects.rb b/lib/api/v3/projects.rb
index c3821555452..f3cd0b22e9b 100644
--- a/lib/api/v3/projects.rb
+++ b/lib/api/v3/projects.rb
@@ -359,6 +359,8 @@ module API
         desc 'Remove a project'
         delete ":id" do
           authorize! :remove_project, user_project
+
+          status(200)
           ::Projects::DestroyService.new(user_project, current_user, {}).async_execute
         end
 
@@ -384,6 +386,7 @@ module API
           authorize! :remove_fork_project, user_project
 
           if user_project.forked?
+            status(200)
             user_project.forked_project_link.destroy
           else
             not_modified!
diff --git a/lib/api/v3/runners.rb b/lib/api/v3/runners.rb
new file mode 100644
index 00000000000..8967141fe3d
--- /dev/null
+++ b/lib/api/v3/runners.rb
@@ -0,0 +1,65 @@
+module API
+  module V3
+    class Runners < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+
+      resource :runners do
+        desc 'Remove a runner' do
+          success ::API::Entities::Runner
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of the runner'
+        end
+        delete ':id' do
+          runner = Ci::Runner.find(params[:id])
+          not_found!('Runner') unless runner
+
+          authenticate_delete_runner!(runner)
+
+          status(200)
+          runner.destroy
+        end
+      end
+
+      params do
+        requires :id, type: String, desc: 'The ID of a project'
+      end
+      resource :projects do
+        before { authorize_admin_project }
+
+        desc "Disable project's runner" do
+          success ::API::Entities::Runner
+        end
+        params do
+          requires :runner_id, type: Integer, desc: 'The ID of the runner'
+        end
+        delete ':id/runners/:runner_id' do
+          runner_project = user_project.runner_projects.find_by(runner_id: params[:runner_id])
+          not_found!('Runner') unless runner_project
+
+          runner = runner_project.runner
+          forbidden!("Only one project associated with the runner. Please remove the runner instead") if runner.projects.count == 1
+
+          runner_project.destroy
+
+          present runner, with: ::API::Entities::Runner
+        end
+      end
+
+      helpers do
+        def authenticate_delete_runner!(runner)
+          return if current_user.is_admin?
+          forbidden!("Runner is shared") if runner.is_shared?
+          forbidden!("Runner associated with more than one project") if runner.projects.count > 1
+          forbidden!("No access granted") unless user_can_access_runner?(runner)
+        end
+
+        def user_can_access_runner?(runner)
+          current_user.ci_authorized_runners.exists?(runner.id)
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/services.rb b/lib/api/v3/services.rb
new file mode 100644
index 00000000000..af0a058f69b
--- /dev/null
+++ b/lib/api/v3/services.rb
@@ -0,0 +1,573 @@
+module API
+  module V3
+    class Services < Grape::API
+      services = {
+        'asana' => [
+          {
+            required: true,
+            name: :api_key,
+            type: String,
+            desc: 'User API token'
+          },
+          {
+            required: false,
+            name: :restrict_to_branch,
+            type: String,
+            desc: 'Comma-separated list of branches which will be automatically inspected. Leave blank to include all branches'
+          }
+        ],
+        'assembla' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The authentication token'
+          },
+          {
+            required: false,
+            name: :subdomain,
+            type: String,
+            desc: 'Subdomain setting'
+          }
+        ],
+        'bamboo' => [
+          {
+            required: true,
+            name: :bamboo_url,
+            type: String,
+            desc: 'Bamboo root URL like https://bamboo.example.com'
+          },
+          {
+            required: true,
+            name: :build_key,
+            type: String,
+            desc: 'Bamboo build plan key like'
+          },
+          {
+            required: true,
+            name: :username,
+            type: String,
+            desc: 'A user with API access, if applicable'
+          },
+          {
+            required: true,
+            name: :password,
+            type: String,
+            desc: 'Passord of the user'
+          }
+        ],
+        'bugzilla' => [
+          {
+            required: true,
+            name: :new_issue_url,
+            type: String,
+            desc: 'New issue URL'
+          },
+          {
+            required: true,
+            name: :issues_url,
+            type: String,
+            desc: 'Issues URL'
+          },
+          {
+            required: true,
+            name: :project_url,
+            type: String,
+            desc: 'Project URL'
+          },
+          {
+            required: false,
+            name: :description,
+            type: String,
+            desc: 'Description'
+          },
+          {
+            required: false,
+            name: :title,
+            type: String,
+            desc: 'Title'
+          }
+        ],
+        'buildkite' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'Buildkite project GitLab token'
+          },
+          {
+            required: true,
+            name: :project_url,
+            type: String,
+            desc: 'The buildkite project URL'
+          },
+          {
+            required: false,
+            name: :enable_ssl_verification,
+            type: Boolean,
+            desc: 'Enable SSL verification for communication'
+          }
+        ],
+        'builds-email' => [
+          {
+            required: true,
+            name: :recipients,
+            type: String,
+            desc: 'Comma-separated list of recipient email addresses'
+          },
+          {
+            required: false,
+            name: :add_pusher,
+            type: Boolean,
+            desc: 'Add pusher to recipients list'
+          },
+          {
+            required: false,
+            name: :notify_only_broken_builds,
+            type: Boolean,
+            desc: 'Notify only broken builds'
+          }
+        ],
+        'campfire' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'Campfire token'
+          },
+          {
+            required: false,
+            name: :subdomain,
+            type: String,
+            desc: 'Campfire subdomain'
+          },
+          {
+            required: false,
+            name: :room,
+            type: String,
+            desc: 'Campfire room'
+          }
+        ],
+        'custom-issue-tracker' => [
+          {
+            required: true,
+            name: :new_issue_url,
+            type: String,
+            desc: 'New issue URL'
+          },
+          {
+            required: true,
+            name: :issues_url,
+            type: String,
+            desc: 'Issues URL'
+          },
+          {
+            required: true,
+            name: :project_url,
+            type: String,
+            desc: 'Project URL'
+          },
+          {
+            required: false,
+            name: :description,
+            type: String,
+            desc: 'Description'
+          },
+          {
+            required: false,
+            name: :title,
+            type: String,
+            desc: 'Title'
+          }
+        ],
+        'drone-ci' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'Drone CI token'
+          },
+          {
+            required: true,
+            name: :drone_url,
+            type: String,
+            desc: 'Drone CI URL'
+          },
+          {
+            required: false,
+            name: :enable_ssl_verification,
+            type: Boolean,
+            desc: 'Enable SSL verification for communication'
+          }
+        ],
+        'emails-on-push' => [
+          {
+            required: true,
+            name: :recipients,
+            type: String,
+            desc: 'Comma-separated list of recipient email addresses'
+          },
+          {
+            required: false,
+            name: :disable_diffs,
+            type: Boolean,
+            desc: 'Disable code diffs'
+          },
+          {
+            required: false,
+            name: :send_from_committer_email,
+            type: Boolean,
+            desc: 'Send from committer'
+          }
+        ],
+        'external-wiki' => [
+          {
+            required: true,
+            name: :external_wiki_url,
+            type: String,
+            desc: 'The URL of the external Wiki'
+          }
+        ],
+        'flowdock' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'Flowdock token'
+          }
+        ],
+        'gemnasium' => [
+          {
+            required: true,
+            name: :api_key,
+            type: String,
+            desc: 'Your personal API key on gemnasium.com'
+          },
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: "The project's slug on gemnasium.com"
+          }
+        ],
+        'hipchat' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The room token'
+          },
+          {
+            required: false,
+            name: :room,
+            type: String,
+            desc: 'The room name or ID'
+          },
+          {
+            required: false,
+            name: :color,
+            type: String,
+            desc: 'The room color'
+          },
+          {
+            required: false,
+            name: :notify,
+            type: Boolean,
+            desc: 'Enable notifications'
+          },
+          {
+            required: false,
+            name: :api_version,
+            type: String,
+            desc: 'Leave blank for default (v2)'
+          },
+          {
+            required: false,
+            name: :server,
+            type: String,
+            desc: 'Leave blank for default. https://hipchat.example.com'
+          }
+        ],
+        'irker' => [
+          {
+            required: true,
+            name: :recipients,
+            type: String,
+            desc: 'Recipients/channels separated by whitespaces'
+          },
+          {
+            required: false,
+            name: :default_irc_uri,
+            type: String,
+            desc: 'Default: irc://irc.network.net:6697'
+          },
+          {
+            required: false,
+            name: :server_host,
+            type: String,
+            desc: 'Server host. Default localhost'
+          },
+          {
+            required: false,
+            name: :server_port,
+            type: Integer,
+            desc: 'Server port. Default 6659'
+          },
+          {
+            required: false,
+            name: :colorize_messages,
+            type: Boolean,
+            desc: 'Colorize messages'
+          }
+        ],
+        'jira' => [
+          {
+            required: true,
+            name: :url,
+            type: String,
+            desc: 'The URL to the JIRA project which is being linked to this GitLab project, e.g., https://jira.example.com'
+          },
+          {
+            required: true,
+            name: :project_key,
+            type: String,
+            desc: 'The short identifier for your JIRA project, all uppercase, e.g., PROJ'
+          },
+          {
+            required: false,
+            name: :username,
+            type: String,
+            desc: 'The username of the user created to be used with GitLab/JIRA'
+          },
+          {
+            required: false,
+            name: :password,
+            type: String,
+            desc: 'The password of the user created to be used with GitLab/JIRA'
+          },
+          {
+            required: false,
+            name: :jira_issue_transition_id,
+            type: Integer,
+            desc: 'The ID of a transition that moves issues to a closed state. You can find this number under the JIRA workflow administration (**Administration > Issues > Workflows**) by selecting **View** under **Operations** of the desired workflow of your project. The ID of each state can be found inside the parenthesis of each transition name under the **Transitions (id)** column ([see screenshot][trans]). By default, this ID is set to `2`'
+          }
+        ],
+
+        'kubernetes' => [
+          {
+            required: true,
+            name: :namespace,
+            type: String,
+            desc: 'The Kubernetes namespace to use'
+          },
+          {
+            required: true,
+            name: :api_url,
+            type: String,
+            desc: 'The URL to the Kubernetes cluster API, e.g., https://kubernetes.example.com'
+          },
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The service token to authenticate against the Kubernetes cluster with'
+          },
+          {
+            required: false,
+            name: :ca_pem,
+            type: String,
+            desc: 'A custom certificate authority bundle to verify the Kubernetes cluster with (PEM format)'
+          },
+        ],
+        'mattermost-slash-commands' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The Mattermost token'
+          }
+        ],
+        'slack-slash-commands' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The Slack token'
+          }
+        ],
+        'pipelines-email' => [
+          {
+            required: true,
+            name: :recipients,
+            type: String,
+            desc: 'Comma-separated list of recipient email addresses'
+          },
+          {
+            required: false,
+            name: :notify_only_broken_builds,
+            type: Boolean,
+            desc: 'Notify only broken builds'
+          }
+        ],
+        'pivotaltracker' => [
+          {
+            required: true,
+            name: :token,
+            type: String,
+            desc: 'The Pivotaltracker token'
+          },
+          {
+            required: false,
+            name: :restrict_to_branch,
+            type: String,
+            desc: 'Comma-separated list of branches which will be automatically inspected. Leave blank to include all branches.'
+          }
+        ],
+        'pushover' => [
+          {
+            required: true,
+            name: :api_key,
+            type: String,
+            desc: 'The application key'
+          },
+          {
+            required: true,
+            name: :user_key,
+            type: String,
+            desc: 'The user key'
+          },
+          {
+            required: true,
+            name: :priority,
+            type: String,
+            desc: 'The priority'
+          },
+          {
+            required: true,
+            name: :device,
+            type: String,
+            desc: 'Leave blank for all active devices'
+          },
+          {
+            required: true,
+            name: :sound,
+            type: String,
+            desc: 'The sound of the notification'
+          }
+        ],
+        'redmine' => [
+          {
+            required: true,
+            name: :new_issue_url,
+            type: String,
+            desc: 'The new issue URL'
+          },
+          {
+            required: true,
+            name: :project_url,
+            type: String,
+            desc: 'The project URL'
+          },
+          {
+            required: true,
+            name: :issues_url,
+            type: String,
+            desc: 'The issues URL'
+          },
+          {
+            required: false,
+            name: :description,
+            type: String,
+            desc: 'The description of the tracker'
+          }
+        ],
+        'slack' => [
+          {
+            required: true,
+            name: :webhook,
+            type: String,
+            desc: 'The Slack webhook. e.g. https://hooks.slack.com/services/...'
+          },
+          {
+            required: false,
+            name: :new_issue_url,
+            type: String,
+            desc: 'The user name'
+          },
+          {
+            required: false,
+            name: :channel,
+            type: String,
+            desc: 'The channel name'
+          }
+        ],
+        'mattermost' => [
+          {
+            required: true,
+            name: :webhook,
+            type: String,
+            desc: 'The Mattermost webhook. e.g. http://mattermost_host/hooks/...'
+          }
+        ],
+        'teamcity' => [
+          {
+            required: true,
+            name: :teamcity_url,
+            type: String,
+            desc: 'TeamCity root URL like https://teamcity.example.com'
+          },
+          {
+            required: true,
+            name: :build_type,
+            type: String,
+            desc: 'Build configuration ID'
+          },
+          {
+            required: true,
+            name: :username,
+            type: String,
+            desc: 'A user with permissions to trigger a manual build'
+          },
+          {
+            required: true,
+            name: :password,
+            type: String,
+            desc: 'The password of the user'
+          }
+        ]
+      }
+
+      resource :projects do
+        before { authenticate! }
+        before { authorize_admin_project }
+
+        helpers do
+          def service_attributes(service)
+            service.fields.inject([]) do |arr, hash|
+              arr << hash[:name].to_sym
+            end
+          end
+        end
+
+        desc "Delete a service for project"
+        params do
+          requires :service_slug, type: String, values: services.keys, desc: 'The name of the service'
+        end
+        delete ":id/services/:service_slug" do
+          service = user_project.find_or_initialize_service(params[:service_slug].underscore)
+
+          attrs = service_attributes(service).inject({}) do |hash, key|
+            hash.merge!(key => nil)
+          end
+
+          if service.update_attributes(attrs.merge(active: false))
+            status(200)
+            true
+          else
+            render_api_error!('400 Bad Request', 400)
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/system_hooks.rb b/lib/api/v3/system_hooks.rb
index 391510b9ee0..5787c06fc12 100644
--- a/lib/api/v3/system_hooks.rb
+++ b/lib/api/v3/system_hooks.rb
@@ -13,6 +13,19 @@ module API
         get do
           present SystemHook.all, with: ::API::Entities::Hook
         end
+
+        desc 'Delete a hook' do
+          success ::API::Entities::Hook
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of the system hook'
+        end
+        delete ":id" do
+          hook = SystemHook.find_by(id: params[:id])
+          not_found!('System hook') unless hook
+
+          present hook.destroy, with: ::API::Entities::Hook
+        end
       end
     end
   end
diff --git a/lib/api/v3/tags.rb b/lib/api/v3/tags.rb
index 016e3d86932..6913720d9c5 100644
--- a/lib/api/v3/tags.rb
+++ b/lib/api/v3/tags.rb
@@ -14,6 +14,26 @@ module API
           tags = user_project.repository.tags.sort_by(&:name).reverse
           present tags, with: ::API::Entities::RepoTag, project: user_project
         end
+
+        desc 'Delete a repository tag'
+        params do
+          requires :tag_name, type: String, desc: 'The name of the tag'
+        end
+        delete ":id/repository/tags/:tag_name", requirements: { tag_name: /.+/ } do
+          authorize_push_project
+
+          result = ::Tags::DestroyService.new(user_project, current_user).
+            execute(params[:tag_name])
+
+          if result[:status] == :success
+            status(200)
+            {
+              tag_name: params[:tag_name]
+            }
+          else
+            render_api_error!(result[:message], result[:return_code])
+          end
+        end
       end
     end
   end
diff --git a/lib/api/v3/todos.rb b/lib/api/v3/todos.rb
index 4f9b5fe72a6..e60cb25e57b 100644
--- a/lib/api/v3/todos.rb
+++ b/lib/api/v3/todos.rb
@@ -19,6 +19,8 @@ module API
 
         desc 'Mark all todos as done'
         delete do
+          status(200)
+          
           todos = TodosFinder.new(current_user, params).execute
           TodoService.new.mark_todos_as_done(todos, current_user)
         end
diff --git a/lib/api/v3/triggers.rb b/lib/api/v3/triggers.rb
new file mode 100644
index 00000000000..4051d4bca8d
--- /dev/null
+++ b/lib/api/v3/triggers.rb
@@ -0,0 +1,30 @@
+module API
+  module V3
+    class Triggers < Grape::API
+      include PaginationParams
+
+      params do
+        requires :id, type: String, desc: 'The ID of a project'
+      end
+      resource :projects do
+        desc 'Delete a trigger' do
+          success ::API::Entities::Trigger
+        end
+        params do
+          requires :token, type: String, desc: 'The unique token of trigger'
+        end
+        delete ':id/triggers/:token' do
+          authenticate!
+          authorize! :admin_build, user_project
+
+          trigger = user_project.triggers.find_by(token: params[:token].to_s)
+          return not_found!('Trigger') unless trigger
+
+          trigger.destroy
+
+          present trigger, with: ::API::Entities::Trigger
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/v3/users.rb b/lib/api/v3/users.rb
index 7838cdc46a7..14f54731730 100644
--- a/lib/api/v3/users.rb
+++ b/lib/api/v3/users.rb
@@ -92,6 +92,25 @@ module API
 
           present paginate(events), with: ::API::V3::Entities::Event
         end
+
+        desc 'Delete an existing SSH key from a specified user. Available only for admins.' do
+          success ::API::Entities::SSHKey
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of the user'
+          requires :key_id, type: Integer, desc: 'The ID of the SSH key'
+        end
+        delete ':id/keys/:key_id' do
+          authenticated_as_admin!
+
+          user = User.find_by(id: params[:id])
+          not_found!('User') unless user
+
+          key = user.keys.find_by(id: params[:key_id])
+          not_found!('Key') unless key
+
+          present key.destroy, with: ::API::Entities::SSHKey
+        end
       end
 
       resource :user do
@@ -111,6 +130,19 @@ module API
         get "emails" do
           present current_user.emails, with: ::API::Entities::Email
         end
+
+        desc 'Delete an SSH key from the currently authenticated user' do
+          success ::API::Entities::SSHKey
+        end
+        params do
+          requires :key_id, type: Integer, desc: 'The ID of the SSH key'
+        end
+        delete "keys/:key_id" do
+          key = current_user.keys.find_by(id: params[:key_id])
+          not_found!('Key') unless key
+
+          present key.destroy, with: ::API::Entities::SSHKey
+        end
       end
     end
   end
diff --git a/lib/api/v3/variables.rb b/lib/api/v3/variables.rb
new file mode 100644
index 00000000000..0f55a14fb28
--- /dev/null
+++ b/lib/api/v3/variables.rb
@@ -0,0 +1,29 @@
+module API
+  module V3
+    class Variables < Grape::API
+      include PaginationParams
+
+      before { authenticate! }
+      before { authorize! :admin_build, user_project }
+
+      params do
+        requires :id, type: String, desc: 'The ID of a project'
+      end
+
+      resource :projects do
+        desc 'Delete an existing variable from a project' do
+          success ::API::Entities::Variable
+        end
+        params do
+          requires :key, type: String, desc: 'The key of the variable'
+        end
+        delete ':id/variables/:key' do
+          variable = user_project.variables.find_by(key: params[:key])
+          not_found!('Variable') unless variable
+
+          present variable.destroy, with: ::API::Entities::Variable
+        end
+      end
+    end
+  end
+end
diff --git a/lib/api/variables.rb b/lib/api/variables.rb
index 259bc051d52..77e5d54c225 100644
--- a/lib/api/variables.rb
+++ b/lib/api/variables.rb
@@ -1,5 +1,4 @@
 module API
-  # Projects variables API
   class Variables < Grape::API
     include PaginationParams
 
@@ -81,7 +80,7 @@ module API
       end
       delete ':id/variables/:key' do
         variable = user_project.variables.find_by(key: params[:key])
-        return not_found!('Variable') unless variable
+        not_found!('Variable') unless variable
 
         variable.destroy
       end
diff --git a/spec/requests/api/project_snippets_spec.rb b/spec/requests/api/project_snippets_spec.rb
index e382d89c6ef..2c4602faf2c 100644
--- a/spec/requests/api/project_snippets_spec.rb
+++ b/spec/requests/api/project_snippets_spec.rb
@@ -212,7 +212,7 @@ describe API::ProjectSnippets, api: true do
     end
 
     it 'returns 404 for invalid snippet id' do
-      get api("/projects/#{snippet.project.id}/snippets/1234", admin)
+      get api("/projects/#{snippet.project.id}/snippets/1234/raw", admin)
 
       expect(response).to have_http_status(404)
       expect(json_response['message']).to eq('404 Snippet Not Found')
diff --git a/spec/requests/api/v3/award_emoji_spec.rb b/spec/requests/api/v3/award_emoji_spec.rb
new file mode 100644
index 00000000000..91145c8e72c
--- /dev/null
+++ b/spec/requests/api/v3/award_emoji_spec.rb
@@ -0,0 +1,74 @@
+require 'spec_helper'
+
+describe API::V3::AwardEmoji, api: true  do
+  include ApiHelpers
+
+  let(:user)            { create(:user) }
+  let!(:project)        { create(:empty_project) }
+  let(:issue)           { create(:issue, project: project) }
+  let!(:award_emoji)    { create(:award_emoji, awardable: issue, user: user) }
+  let!(:merge_request)  { create(:merge_request, source_project: project, target_project: project) }
+  let!(:downvote)       { create(:award_emoji, :downvote, awardable: merge_request, user: user) }
+  let!(:note)           { create(:note, project: project, noteable: issue) }
+
+  before { project.team << [user, :master] }
+
+  describe 'DELETE /projects/:id/awardable/:awardable_id/award_emoji/:award_id' do
+    context 'when the awardable is an Issue' do
+      it 'deletes the award' do
+        expect do
+          delete v3_api("/projects/#{project.id}/issues/#{issue.id}/award_emoji/#{award_emoji.id}", user)
+
+          expect(response).to have_http_status(200)
+        end.to change { issue.award_emoji.count }.from(1).to(0)
+      end
+
+      it 'returns a 404 error when the award emoji can not be found' do
+        delete v3_api("/projects/#{project.id}/issues/#{issue.id}/award_emoji/12345", user)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when the awardable is a Merge Request' do
+      it 'deletes the award' do
+        expect do
+          delete v3_api("/projects/#{project.id}/merge_requests/#{merge_request.id}/award_emoji/#{downvote.id}", user)
+
+          expect(response).to have_http_status(200)
+        end.to change { merge_request.award_emoji.count }.from(1).to(0)
+      end
+
+      it 'returns a 404 error when note id not found' do
+        delete v3_api("/projects/#{project.id}/merge_requests/#{merge_request.id}/notes/12345", user)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'when the awardable is a Snippet' do
+      let(:snippet) { create(:project_snippet, :public, project: project) }
+      let!(:award)  { create(:award_emoji, awardable: snippet, user: user) }
+
+      it 'deletes the award' do
+        expect do
+          delete v3_api("/projects/#{project.id}/snippets/#{snippet.id}/award_emoji/#{award.id}", user)
+
+          expect(response).to have_http_status(200)
+        end.to change { snippet.award_emoji.count }.from(1).to(0)
+      end
+    end
+  end
+
+  describe 'DELETE /projects/:id/awardable/:awardable_id/award_emoji/:award_emoji_id' do
+    let!(:rocket)  { create(:award_emoji, awardable: note, name: 'rocket', user: user) }
+
+    it 'deletes the award' do
+      expect do
+        delete v3_api("/projects/#{project.id}/issues/#{issue.id}/notes/#{note.id}/award_emoji/#{rocket.id}", user)
+
+        expect(response).to have_http_status(200)
+      end.to change { note.award_emoji.count }.from(1).to(0)
+    end
+  end
+end
diff --git a/spec/requests/api/v3/boards_spec.rb b/spec/requests/api/v3/boards_spec.rb
index 8aaf3be4f87..eb95934f354 100644
--- a/spec/requests/api/v3/boards_spec.rb
+++ b/spec/requests/api/v3/boards_spec.rb
@@ -5,6 +5,7 @@ describe API::V3::Boards, api: true  do
 
   let(:user)        { create(:user) }
   let(:guest)       { create(:user) }
+  let(:non_member)  { create(:user) }
   let!(:project)    { create(:empty_project, :public, creator_id: user.id, namespace: user.namespace ) }
 
   let!(:dev_label) do
@@ -76,4 +77,37 @@ describe API::V3::Boards, api: true  do
       expect(response).to have_http_status(404)
     end
   end
+
+  describe "DELETE /projects/:id/board/lists/:list_id" do
+    let(:base_url) { "/projects/#{project.id}/boards/#{board.id}/lists" }
+
+    it "rejects a non member from deleting a list" do
+      delete v3_api("#{base_url}/#{dev_list.id}", non_member)
+
+      expect(response).to have_http_status(403)
+    end
+
+    it "rejects a user with guest role from deleting a list" do
+      delete v3_api("#{base_url}/#{dev_list.id}", guest)
+
+      expect(response).to have_http_status(403)
+    end
+
+    it "returns 404 error if list id not found" do
+      delete v3_api("#{base_url}/44444", user)
+
+      expect(response).to have_http_status(404)
+    end
+
+    context "when the user is project owner" do
+      let(:owner)     { create(:user) }
+      let(:project)   { create(:empty_project, namespace: owner.namespace) }
+
+      it "deletes the list if an admin requests it" do
+        delete v3_api("#{base_url}/#{dev_list.id}", owner)
+
+        expect(response).to have_http_status(200)
+      end
+    end
+  end
 end
diff --git a/spec/requests/api/v3/branches_spec.rb b/spec/requests/api/v3/branches_spec.rb
index a3e1581fcc5..e4cedf98e64 100644
--- a/spec/requests/api/v3/branches_spec.rb
+++ b/spec/requests/api/v3/branches_spec.rb
@@ -5,8 +5,12 @@ describe API::V3::Branches, api: true  do
   include ApiHelpers
 
   let(:user) { create(:user) }
+  let(:user2) { create(:user) }
   let!(:project) { create(:project, :repository, creator: user) }
   let!(:master) { create(:project_member, :master, user: user, project: project) }
+  let!(:guest) { create(:project_member, :guest, user: user2, project: project) }
+  let!(:branch_name) { 'feature' }
+  let!(:branch_with_dot) { CreateBranchService.new(project, user).execute("with.1.2.3", "master") }
 
   describe "GET /projects/:id/repository/branches" do
     it "returns an array of project branches" do
@@ -21,6 +25,44 @@ describe API::V3::Branches, api: true  do
     end
   end
 
+  describe "DELETE /projects/:id/repository/branches/:branch" do
+    before do
+      allow_any_instance_of(Repository).to receive(:rm_branch).and_return(true)
+    end
+
+    it "removes branch" do
+      delete v3_api("/projects/#{project.id}/repository/branches/#{branch_name}", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response['branch_name']).to eq(branch_name)
+    end
+
+    it "removes a branch with dots in the branch name" do
+      delete v3_api("/projects/#{project.id}/repository/branches/with.1.2.3", user)
+
+      expect(response).to have_http_status(200)
+      expect(json_response['branch_name']).to eq("with.1.2.3")
+    end
+
+    it 'returns 404 if branch not exists' do
+      delete v3_api("/projects/#{project.id}/repository/branches/foobar", user)
+      expect(response).to have_http_status(404)
+    end
+
+    it "removes protected branch" do
+      create(:protected_branch, project: project, name: branch_name)
+      delete v3_api("/projects/#{project.id}/repository/branches/#{branch_name}", user)
+      expect(response).to have_http_status(405)
+      expect(json_response['message']).to eq('Protected branch cant be removed')
+    end
+
+    it "does not remove HEAD branch" do
+      delete v3_api("/projects/#{project.id}/repository/branches/master", user)
+      expect(response).to have_http_status(405)
+      expect(json_response['message']).to eq('Cannot remove HEAD branch')
+    end
+  end
+
   describe "DELETE /projects/:id/repository/merged_branches" do
     before do
       allow_any_instance_of(Repository).to receive(:rm_branch).and_return(true)
@@ -33,10 +75,7 @@ describe API::V3::Branches, api: true  do
     end
 
     it 'returns a 403 error if guest' do
-      user_b = create :user
-      create(:project_member, :guest, user: user_b, project: project)
-
-      delete v3_api("/projects/#{project.id}/repository/merged_branches", user_b)
+      delete v3_api("/projects/#{project.id}/repository/merged_branches", user2)
 
       expect(response).to have_http_status(403)
     end
diff --git a/spec/requests/api/v3/broadcast_messages_spec.rb b/spec/requests/api/v3/broadcast_messages_spec.rb
new file mode 100644
index 00000000000..06556401a29
--- /dev/null
+++ b/spec/requests/api/v3/broadcast_messages_spec.rb
@@ -0,0 +1,34 @@
+require 'spec_helper'
+
+describe API::V3::BroadcastMessages, api: true do
+  include ApiHelpers
+
+  let(:user)  { create(:user) }
+  let(:admin) { create(:admin) }
+
+  describe 'DELETE /broadcast_messages/:id' do
+    let!(:message) { create(:broadcast_message) }
+
+    it 'returns a 401 for anonymous users' do
+      delete v3_api("/broadcast_messages/#{message.id}"),
+        attributes_for(:broadcast_message)
+
+      expect(response).to have_http_status(401)
+    end
+
+    it 'returns a 403 for users' do
+      delete v3_api("/broadcast_messages/#{message.id}", user),
+        attributes_for(:broadcast_message)
+
+      expect(response).to have_http_status(403)
+    end
+
+    it 'deletes the broadcast message for admins' do
+      expect do
+        delete v3_api("/broadcast_messages/#{message.id}", admin)
+
+        expect(response).to have_http_status(200)
+      end.to change { BroadcastMessage.count }.by(-1)
+    end
+  end
+end
diff --git a/spec/requests/api/v3/environments_spec.rb b/spec/requests/api/v3/environments_spec.rb
new file mode 100644
index 00000000000..1ac666ab240
--- /dev/null
+++ b/spec/requests/api/v3/environments_spec.rb
@@ -0,0 +1,39 @@
+require 'spec_helper'
+
+describe API::V3::Environments, api: true  do
+  include ApiHelpers
+
+  let(:user)          { create(:user) }
+  let(:non_member)    { create(:user) }
+  let(:project)       { create(:empty_project, :private, namespace: user.namespace) }
+  let!(:environment)  { create(:environment, project: project) }
+
+  before do
+    project.team << [user, :master]
+  end
+
+  describe 'DELETE /projects/:id/environments/:environment_id' do
+    context 'as a master' do
+      it 'returns a 200 for an existing environment' do
+        delete v3_api("/projects/#{project.id}/environments/#{environment.id}", user)
+
+        expect(response).to have_http_status(200)
+      end
+
+      it 'returns a 404 for non existing id' do
+        delete v3_api("/projects/#{project.id}/environments/12345", user)
+
+        expect(response).to have_http_status(404)
+        expect(json_response['message']).to eq('404 Not found')
+      end
+    end
+
+    context 'a non member' do
+      it 'rejects the request' do
+        delete v3_api("/projects/#{project.id}/environments/#{environment.id}", non_member)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
+end
diff --git a/spec/requests/api/v3/files_spec.rb b/spec/requests/api/v3/files_spec.rb
index 52fd908af7d..93637053626 100644
--- a/spec/requests/api/v3/files_spec.rb
+++ b/spec/requests/api/v3/files_spec.rb
@@ -2,17 +2,6 @@ require 'spec_helper'
 
 describe API::V3::Files, api: true  do
   include ApiHelpers
-  let(:user) { create(:user) }
-  let!(:project) { create(:project, :repository, namespace: user.namespace ) }
-  let(:guest) { create(:user) { |u| project.add_guest(u) } }
-  let(:file_path) { 'files/ruby/popen.rb' }
-  let(:params) do
-    {
-      file_path: file_path,
-      ref: 'master'
-    }
-  end
-  let(:author_email) { FFaker::Internet.email }
 
   # I have to remove periods from the end of the name
   # This happened when the user's name had a suffix (i.e. "Sr.")
@@ -26,6 +15,18 @@ describe API::V3::Files, api: true  do
   # ...
   # Author: Foo Sr <foo@example.com>
   # ...
+
+  let(:user) { create(:user) }
+  let!(:project) { create(:project, :repository, namespace: user.namespace ) }
+  let(:guest) { create(:user) { |u| project.add_guest(u) } }
+  let(:file_path) { 'files/ruby/popen.rb' }
+  let(:params) do
+    {
+      file_path: file_path,
+      ref: 'master'
+    }
+  end
+  let(:author_email) { FFaker::Internet.email }
   let(:author_name) { FFaker::Name.name.chomp("\.") }
 
   before { project.team << [user, :developer] }
diff --git a/spec/requests/api/v3/labels_spec.rb b/spec/requests/api/v3/labels_spec.rb
index f44403374e9..dfac357d37c 100644
--- a/spec/requests/api/v3/labels_spec.rb
+++ b/spec/requests/api/v3/labels_spec.rb
@@ -149,4 +149,23 @@ describe API::V3::Labels, api: true  do
       end
     end
   end
+
+  describe 'DELETE /projects/:id/labels' do
+    it 'returns 200 for existing label' do
+      delete v3_api("/projects/#{project.id}/labels", user), name: 'label1'
+
+      expect(response).to have_http_status(200)
+    end
+
+    it 'returns 404 for non existing label' do
+      delete v3_api("/projects/#{project.id}/labels", user), name: 'label2'
+      expect(response).to have_http_status(404)
+      expect(json_response['message']).to eq('404 Label Not Found')
+    end
+
+    it 'returns 400 for wrong parameters' do
+      delete v3_api("/projects/#{project.id}/labels", user)
+      expect(response).to have_http_status(400)
+    end
+  end
 end
diff --git a/spec/requests/api/v3/members_spec.rb b/spec/requests/api/v3/members_spec.rb
index 28c3ca03960..13814ed10c3 100644
--- a/spec/requests/api/v3/members_spec.rb
+++ b/spec/requests/api/v3/members_spec.rb
@@ -1,6 +1,6 @@
 require 'spec_helper'
 
-describe API::Members, api: true  do
+describe API::V3::Members, api: true  do
   include ApiHelpers
 
   let(:master) { create(:user) }
diff --git a/spec/requests/api/v3/notes_spec.rb b/spec/requests/api/v3/notes_spec.rb
index b51cb3055d5..b8f0260c6a2 100644
--- a/spec/requests/api/v3/notes_spec.rb
+++ b/spec/requests/api/v3/notes_spec.rb
@@ -2,6 +2,7 @@ require 'spec_helper'
 
 describe API::V3::Notes, api: true  do
   include ApiHelpers
+
   let(:user) { create(:user) }
   let!(:project) { create(:empty_project, :public, namespace: user.namespace) }
   let!(:issue) { create(:issue, project: project, author: user) }
@@ -373,12 +374,12 @@ describe API::V3::Notes, api: true  do
     context 'when noteable is an Issue' do
       it 'deletes a note' do
         delete v3_api("/projects/#{project.id}/issues/#{issue.id}/"\
-                   "notes/#{issue_note.id}", user)
+                      "notes/#{issue_note.id}", user)
 
         expect(response).to have_http_status(200)
         # Check if note is really deleted
         delete v3_api("/projects/#{project.id}/issues/#{issue.id}/"\
-                   "notes/#{issue_note.id}", user)
+                      "notes/#{issue_note.id}", user)
         expect(response).to have_http_status(404)
       end
 
@@ -392,18 +393,18 @@ describe API::V3::Notes, api: true  do
     context 'when noteable is a Snippet' do
       it 'deletes a note' do
         delete v3_api("/projects/#{project.id}/snippets/#{snippet.id}/"\
-                   "notes/#{snippet_note.id}", user)
+                      "notes/#{snippet_note.id}", user)
 
         expect(response).to have_http_status(200)
         # Check if note is really deleted
         delete v3_api("/projects/#{project.id}/snippets/#{snippet.id}/"\
-                   "notes/#{snippet_note.id}", user)
+                      "notes/#{snippet_note.id}", user)
         expect(response).to have_http_status(404)
       end
 
       it 'returns a 404 error when note id not found' do
         delete v3_api("/projects/#{project.id}/snippets/#{snippet.id}/"\
-                   "notes/12345", user)
+                      "notes/12345", user)
 
         expect(response).to have_http_status(404)
       end
@@ -412,18 +413,18 @@ describe API::V3::Notes, api: true  do
     context 'when noteable is a Merge Request' do
       it 'deletes a note' do
         delete v3_api("/projects/#{project.id}/merge_requests/"\
-                   "#{merge_request.id}/notes/#{merge_request_note.id}", user)
+                      "#{merge_request.id}/notes/#{merge_request_note.id}", user)
 
         expect(response).to have_http_status(200)
         # Check if note is really deleted
         delete v3_api("/projects/#{project.id}/merge_requests/"\
-                   "#{merge_request.id}/notes/#{merge_request_note.id}", user)
+                      "#{merge_request.id}/notes/#{merge_request_note.id}", user)
         expect(response).to have_http_status(404)
       end
 
       it 'returns a 404 error when note id not found' do
         delete v3_api("/projects/#{project.id}/merge_requests/"\
-                   "#{merge_request.id}/notes/12345", user)
+                      "#{merge_request.id}/notes/12345", user)
 
         expect(response).to have_http_status(404)
       end
diff --git a/spec/requests/api/v3/runners_spec.rb b/spec/requests/api/v3/runners_spec.rb
new file mode 100644
index 00000000000..ca335ce9cf0
--- /dev/null
+++ b/spec/requests/api/v3/runners_spec.rb
@@ -0,0 +1,154 @@
+require 'spec_helper'
+
+describe API::V3::Runners, api: true  do
+  include ApiHelpers
+
+  let(:admin) { create(:user, :admin) }
+  let(:user) { create(:user) }
+  let(:user2) { create(:user) }
+
+  let(:project) { create(:empty_project, creator_id: user.id) }
+  let(:project2) { create(:empty_project, creator_id: user.id) }
+
+  let!(:shared_runner) { create(:ci_runner, :shared) }
+  let!(:unused_specific_runner) { create(:ci_runner) }
+
+  let!(:specific_runner) do
+    create(:ci_runner).tap do |runner|
+      create(:ci_runner_project, runner: runner, project: project)
+    end
+  end
+
+  let!(:two_projects_runner) do
+    create(:ci_runner).tap do |runner|
+      create(:ci_runner_project, runner: runner, project: project)
+      create(:ci_runner_project, runner: runner, project: project2)
+    end
+  end
+
+  before do
+    # Set project access for users
+    create(:project_member, :master, user: user, project: project)
+    create(:project_member, :reporter, user: user2, project: project)
+  end
+
+  describe 'DELETE /runners/:id' do
+    context 'admin user' do
+      context 'when runner is shared' do
+        it 'deletes runner' do
+          expect do
+            delete v3_api("/runners/#{shared_runner.id}", admin)
+
+            expect(response).to have_http_status(200)
+          end.to change{ Ci::Runner.shared.count }.by(-1)
+        end
+      end
+
+      context 'when runner is not shared' do
+        it 'deletes unused runner' do
+          expect do
+            delete v3_api("/runners/#{unused_specific_runner.id}", admin)
+
+            expect(response).to have_http_status(200)
+          end.to change{ Ci::Runner.specific.count }.by(-1)
+        end
+
+        it 'deletes used runner' do
+          expect do
+            delete v3_api("/runners/#{specific_runner.id}", admin)
+
+            expect(response).to have_http_status(200)
+          end.to change{ Ci::Runner.specific.count }.by(-1)
+        end
+      end
+
+      it 'returns 404 if runner does not exists' do
+        delete v3_api('/runners/9999', admin)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'authorized user' do
+      context 'when runner is shared' do
+        it 'does not delete runner' do
+          delete v3_api("/runners/#{shared_runner.id}", user)
+          expect(response).to have_http_status(403)
+        end
+      end
+
+      context 'when runner is not shared' do
+        it 'does not delete runner without access to it' do
+          delete v3_api("/runners/#{specific_runner.id}", user2)
+          expect(response).to have_http_status(403)
+        end
+
+        it 'does not delete runner with more than one associated project' do
+          delete v3_api("/runners/#{two_projects_runner.id}", user)
+          expect(response).to have_http_status(403)
+        end
+
+        it 'deletes runner for one owned project' do
+          expect do
+            delete v3_api("/runners/#{specific_runner.id}", user)
+
+            expect(response).to have_http_status(200)
+          end.to change{ Ci::Runner.specific.count }.by(-1)
+        end
+      end
+    end
+
+    context 'unauthorized user' do
+      it 'does not delete runner' do
+        delete v3_api("/runners/#{specific_runner.id}")
+
+        expect(response).to have_http_status(401)
+      end
+    end
+  end
+
+  describe 'DELETE /projects/:id/runners/:runner_id' do
+    context 'authorized user' do
+      context 'when runner have more than one associated projects' do
+        it "disables project's runner" do
+          expect do
+            delete v3_api("/projects/#{project.id}/runners/#{two_projects_runner.id}", user)
+
+            expect(response).to have_http_status(200)
+          end.to change{ project.runners.count }.by(-1)
+        end
+      end
+
+      context 'when runner have one associated projects' do
+        it "does not disable project's runner" do
+          expect do
+            delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}", user)
+          end.to change{ project.runners.count }.by(0)
+          expect(response).to have_http_status(403)
+        end
+      end
+
+      it 'returns 404 is runner is not found' do
+        delete v3_api("/projects/#{project.id}/runners/9999", user)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'authorized user without permissions' do
+      it "does not disable project's runner" do
+        delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}", user2)
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    context 'unauthorized user' do
+      it "does not disable project's runner" do
+        delete v3_api("/projects/#{project.id}/runners/#{specific_runner.id}")
+
+        expect(response).to have_http_status(401)
+      end
+    end
+  end
+end
diff --git a/spec/requests/api/v3/services_spec.rb b/spec/requests/api/v3/services_spec.rb
new file mode 100644
index 00000000000..7e8c8753d02
--- /dev/null
+++ b/spec/requests/api/v3/services_spec.rb
@@ -0,0 +1,22 @@
+require "spec_helper"
+
+describe API::V3::Services, api: true  do
+  include ApiHelpers
+
+  let(:user) { create(:user) }
+  let(:project) { create(:empty_project, creator_id: user.id, namespace: user.namespace) }
+
+  Service.available_services_names.each do |service|
+    describe "DELETE /projects/:id/services/#{service.dasherize}" do
+      include_context service
+
+      it "deletes #{service}" do
+        delete v3_api("/projects/#{project.id}/services/#{dashed_service}", user)
+
+        expect(response).to have_http_status(200)
+        project.send(service_method).reload
+        expect(project.send(service_method).activated?).to be_falsey
+      end
+    end
+  end
+end
diff --git a/spec/requests/api/v3/system_hooks_spec.rb b/spec/requests/api/v3/system_hooks_spec.rb
index da58efb6ebf..91038977c82 100644
--- a/spec/requests/api/v3/system_hooks_spec.rb
+++ b/spec/requests/api/v3/system_hooks_spec.rb
@@ -38,4 +38,20 @@ describe API::V3::SystemHooks, api: true  do
       end
     end
   end
+
+  describe "DELETE /hooks/:id" do
+    it "deletes a hook" do
+      expect do
+        delete v3_api("/hooks/#{hook.id}", admin)
+
+        expect(response).to have_http_status(200)
+      end.to change { SystemHook.count }.by(-1)
+    end
+
+    it 'returns 404 if the system hook does not exist' do
+      delete v3_api('/hooks/12345', admin)
+
+      expect(response).to have_http_status(404)
+    end
+  end
 end
diff --git a/spec/requests/api/v3/tags_spec.rb b/spec/requests/api/v3/tags_spec.rb
index 6722789d928..6870cfd2668 100644
--- a/spec/requests/api/v3/tags_spec.rb
+++ b/spec/requests/api/v3/tags_spec.rb
@@ -64,4 +64,26 @@ describe API::V3::Tags, api: true  do
       end
     end
   end
+
+  describe 'DELETE /projects/:id/repository/tags/:tag_name' do
+    let(:tag_name) { project.repository.tag_names.sort.reverse.first }
+
+    before do
+      allow_any_instance_of(Repository).to receive(:rm_tag).and_return(true)
+    end
+
+    context 'delete tag' do
+      it 'deletes an existing tag' do
+        delete v3_api("/projects/#{project.id}/repository/tags/#{tag_name}", user)
+
+        expect(response).to have_http_status(200)
+        expect(json_response['tag_name']).to eq(tag_name)
+      end
+
+      it 'raises 404 if the tag does not exist' do
+        delete v3_api("/projects/#{project.id}/repository/tags/foobar", user)
+        expect(response).to have_http_status(404)
+      end
+    end
+  end
 end
diff --git a/spec/requests/api/v3/triggers_spec.rb b/spec/requests/api/v3/triggers_spec.rb
new file mode 100644
index 00000000000..721ce4a361b
--- /dev/null
+++ b/spec/requests/api/v3/triggers_spec.rb
@@ -0,0 +1,47 @@
+require 'spec_helper'
+
+describe API::V3::Triggers do
+  include ApiHelpers
+
+  let(:user) { create(:user) }
+  let(:user2) { create(:user) }
+  let!(:trigger_token) { 'secure_token' }
+  let!(:project) { create(:project, :repository, creator: user) }
+  let!(:master) { create(:project_member, :master, user: user, project: project) }
+  let!(:developer) { create(:project_member, :developer, user: user2, project: project) }
+  let!(:trigger) { create(:ci_trigger, project: project, token: trigger_token) }
+
+  describe 'DELETE /projects/:id/triggers/:token' do
+    context 'authenticated user with valid permissions' do
+      it 'deletes trigger' do
+        expect do
+          delete v3_api("/projects/#{project.id}/triggers/#{trigger.token}", user)
+
+          expect(response).to have_http_status(200)
+        end.to change{project.triggers.count}.by(-1)
+      end
+
+      it 'responds with 404 Not Found if requesting non-existing trigger' do
+        delete v3_api("/projects/#{project.id}/triggers/abcdef012345", user)
+
+        expect(response).to have_http_status(404)
+      end
+    end
+
+    context 'authenticated user with invalid permissions' do
+      it 'does not delete trigger' do
+        delete v3_api("/projects/#{project.id}/triggers/#{trigger.token}", user2)
+
+        expect(response).to have_http_status(403)
+      end
+    end
+
+    context 'unauthenticated user' do
+      it 'does not delete trigger' do
+        delete v3_api("/projects/#{project.id}/triggers/#{trigger.token}")
+
+        expect(response).to have_http_status(401)
+      end
+    end
+  end
+end