1 files changed, 23 insertions, 0 deletions
diff --git a/spec/support/shared_examples/services/boards/lists_list_service.rb b/spec/support/shared_examples/services/boards/lists_list_service.rb
new file mode 100644
index 00000000000..0a8220111ab
--- /dev/null
+++ b/spec/support/shared_examples/services/boards/lists_list_service.rb
@@ -0,0 +1,23 @@
+shared_examples 'lists list service' do
+  context 'when the board has a backlog list' do
+    let!(:backlog_list) { create(:backlog_list, board: board) }
+
+    it 'does not create a backlog list' do
+      expect { service.execute(board) }.not_to change(board.lists, :count)
+    end
+
+    it "returns board's lists" do
+      expect(service.execute(board)).to eq [backlog_list, list, board.closed_list]
+    end
+  end
+
+  context 'when the board does not have a backlog list' do
+    it 'creates a backlog list' do
+      expect { service.execute(board) }.to change(board.lists, :count).by(1)
+    end
+
+    it "returns board's lists" do
+      expect(service.execute(board)).to eq [board.backlog_list, list, board.closed_list]
+    end
+  end
+end