From 247e11c94865b429c400fd9f0d1730c13b0b0c35 Mon Sep 17 00:00:00 2001
From: Douglas Barbosa Alexandre <dbalexandre@gmail.com>
Date: Wed, 27 Jul 2016 18:46:03 -0300
Subject: [PATCH] Add service to create a board list

---
 app/services/boards/lists/create_service.rb   | 22 +++++++++++++++++
 spec/factories/boards.rb                      |  5 ++++
 spec/factories/lists.rb                       |  7 ++++++
 .../boards/lists/create_service_spec.rb       | 24 +++++++++++++++++++
 4 files changed, 58 insertions(+)
 create mode 100644 app/services/boards/lists/create_service.rb
 create mode 100644 spec/factories/boards.rb
 create mode 100644 spec/factories/lists.rb
 create mode 100644 spec/services/boards/lists/create_service_spec.rb

diff --git a/app/services/boards/lists/create_service.rb b/app/services/boards/lists/create_service.rb
new file mode 100644
index 00000000000..c6b74148ee1
--- /dev/null
+++ b/app/services/boards/lists/create_service.rb
@@ -0,0 +1,22 @@
+module Boards
+  module Lists
+    class CreateService
+      def initialize(project, params = {})
+        @board  = project.board
+        @params = params.dup
+      end
+
+      def execute
+        board.lists.create(params.merge(position: position))
+      end
+
+      private
+
+      attr_reader :board, :params
+
+      def position
+        board.lists.size
+      end
+    end
+  end
+end
diff --git a/spec/factories/boards.rb b/spec/factories/boards.rb
new file mode 100644
index 00000000000..35c4a0b6f08
--- /dev/null
+++ b/spec/factories/boards.rb
@@ -0,0 +1,5 @@
+FactoryGirl.define do
+  factory :board do
+    project factory: :empty_project
+  end
+end
diff --git a/spec/factories/lists.rb b/spec/factories/lists.rb
new file mode 100644
index 00000000000..4e493da41a0
--- /dev/null
+++ b/spec/factories/lists.rb
@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :list do
+    board
+    label
+    sequence(:position)
+  end
+end
diff --git a/spec/services/boards/lists/create_service_spec.rb b/spec/services/boards/lists/create_service_spec.rb
new file mode 100644
index 00000000000..f173b0e60fd
--- /dev/null
+++ b/spec/services/boards/lists/create_service_spec.rb
@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe Boards::Lists::CreateService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:label)   { create(:label, name: 'in-progress') }
+
+    it 'creates a new list for board' do
+      service = described_class.new(project, label_id: label.id)
+
+      expect { service.execute }.to change(board.lists, :count).by(1)
+    end
+
+    it 'inserts the list to the end of lists' do
+      create_list(:list, 2, board: board)
+      service = described_class.new(project, label_id: label.id)
+
+      list = service.execute
+
+      expect(list.position).to eq 2
+    end
+  end
+end