1 files changed, 30 insertions, 0 deletions
diff --git a/spec/support/shared_examples/services/boards/lists_destroy_service.rb b/spec/support/shared_examples/services/boards/lists_destroy_service.rb
new file mode 100644
index 00000000000..62b6ffe1836
--- /dev/null
+++ b/spec/support/shared_examples/services/boards/lists_destroy_service.rb
@@ -0,0 +1,30 @@
+shared_examples 'lists destroy service' do
+  context 'when list type is label' do
+    it 'removes list from board' do
+      list = create(:list, board: board)
+      service = described_class.new(parent, user)
+
+      expect { service.execute(list) }.to change(board.lists, :count).by(-1)
+    end
+
+    it 'decrements position of higher lists' do
+      development = create(:list, board: board, position: 0)
+      review      = create(:list, board: board, position: 1)
+      staging     = create(:list, board: board, position: 2)
+      closed      = board.closed_list
+
+      described_class.new(parent, user).execute(development)
+
+      expect(review.reload.position).to eq 0
+      expect(staging.reload.position).to eq 1
+      expect(closed.reload.position).to be_nil
+    end
+  end
+
+  it 'does not remove list from board when list type is closed' do
+    list = board.closed_list
+    service = described_class.new(parent, user)
+
+    expect { service.execute(list) }.not_to change(board.lists, :count)
+  end
+end