1 files changed, 47 insertions, 0 deletions
diff --git a/spec/services/boards/lists/destroy_service_spec.rb b/spec/services/boards/lists/destroy_service_spec.rb
new file mode 100644
index 00000000000..6eff445feee
--- /dev/null
+++ b/spec/services/boards/lists/destroy_service_spec.rb
@@ -0,0 +1,47 @@
+require 'spec_helper'
+
+describe Boards::Lists::DestroyService, services: true do
+  describe '#execute' do
+    let(:project) { create(:project_with_board) }
+    let(:board)   { project.board }
+    let(:user)    { create(:user) }
+
+    context 'when list type is label' do
+      it 'removes list from board' do
+        list = create(:list, board: board)
+        service = described_class.new(project, user)
+
+        expect { service.execute(list) }.to change(board.lists, :count).by(-1)
+      end
+
+      it 'decrements position of higher lists' do
+        backlog     = create(:backlog_list, board: board)
+        development = create(:list, board: board, position: 0)
+        review      = create(:list, board: board, position: 1)
+        staging     = create(:list, board: board, position: 2)
+        done        = create(:done_list, board: board)
+
+        described_class.new(project, user).execute(development)
+
+        expect(backlog.reload.position).to be_nil
+        expect(review.reload.position).to eq 0
+        expect(staging.reload.position).to eq 1
+        expect(done.reload.position).to be_nil
+      end
+    end
+
+    it 'does not remove list from board when list type is backlog' do
+      list = create(:backlog_list, board: board)
+      service = described_class.new(project, user)
+
+      expect { service.execute(list) }.not_to change(board.lists, :count)
+    end
+
+    it 'does not remove list from board when list type is done' do
+      list = create(:done_list, board: board)
+      service = described_class.new(project, user)
+
+      expect { service.execute(list) }.not_to change(board.lists, :count)
+    end
+  end
+end