1 files changed, 54 insertions, 0 deletions
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..5e7e145065e
--- /dev/null
+++ b/spec/services/boards/lists/create_service_spec.rb
@@ -0,0 +1,54 @@
+require 'spec_helper'
+
+describe Boards::Lists::CreateService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+    let(:label)   { create(:label, name: 'in-progress') }
+
+    subject(:service) { described_class.new(project, user, label_id: label.id) }
+
+    context 'when board lists is empty' do
+      it 'creates a new list at beginning of the list' do
+        list = service.execute
+
+        expect(list.position).to eq 0
+      end
+    end
+
+    context 'when board lists has only a backlog list' do
+      it 'creates a new list at beginning of the list' do
+        create(:backlog_list, board: board)
+
+        list = service.execute
+
+        expect(list.position).to eq 0
+      end
+    end
+
+    context 'when board lists has only labels lists' do
+      it 'creates a new list at end of the lists' do
+        create(:list, board: board, position: 0)
+        create(:list, board: board, position: 1)
+
+        list = service.execute
+
+        expect(list.position).to eq 2
+      end
+    end
+
+    context 'when board lists has backlog, label and done lists' do
+      it 'creates a new list at end of the label lists' do
+        create(:backlog_list, board: board)
+        create(:done_list, board: board)
+        list1 = create(:list, board: board, position: 0)
+
+        list2 = service.execute
+
+        expect(list1.reload.position).to eq 0
+        expect(list2.reload.position).to eq 1
+      end
+    end
+  end
+end