1 files changed, 82 insertions, 0 deletions
diff --git a/spec/graphql/resolvers/board_lists_resolver_spec.rb b/spec/graphql/resolvers/board_lists_resolver_spec.rb
new file mode 100644
index 00000000000..5f6c440a8ed
--- /dev/null
+++ b/spec/graphql/resolvers/board_lists_resolver_spec.rb
@@ -0,0 +1,82 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe Resolvers::BoardListsResolver do
+  include GraphqlHelpers
+
+  let_it_be(:user)          { create(:user) }
+  let_it_be(:guest)         { create(:user) }
+  let_it_be(:unauth_user)   { create(:user) }
+  let_it_be(:project)       { create(:project, creator_id: user.id, namespace: user.namespace ) }
+  let_it_be(:group)         { create(:group, :private) }
+  let_it_be(:project_label) { create(:label, project: project, name: 'Development') }
+  let_it_be(:group_label)   { create(:group_label, group: group, name: 'Development') }
+
+  shared_examples_for 'group and project board lists resolver' do
+    let(:board) { create(:board, resource_parent: board_parent) }
+
+    before do
+      board_parent.add_developer(user)
+    end
+
+    it 'does not create the backlog list' do
+      lists = resolve_board_lists.items
+
+      expect(lists.count).to eq 1
+      expect(lists[0].list_type).to eq 'closed'
+    end
+
+    context 'with unauthorized user' do
+      it 'raises an error' do
+        expect do
+          resolve_board_lists(current_user: unauth_user)
+        end.to raise_error(Gitlab::Graphql::Errors::ResourceNotAvailable)
+      end
+    end
+
+    context 'when authorized' do
+      let!(:label_list) { create(:list, board: board, label: label) }
+      let!(:backlog_list) { create(:backlog_list, board: board) }
+
+      it 'returns a list of board lists' do
+        lists = resolve_board_lists.items
+
+        expect(lists.count).to eq 3
+        expect(lists.map(&:list_type)).to eq %w(backlog label closed)
+      end
+
+      context 'when another user has list preferences' do
+        before do
+          board.lists.first.update_preferences_for(guest, collapsed: true)
+        end
+
+        it 'returns the complete list of board lists for this user' do
+          lists = resolve_board_lists.items
+
+          expect(lists.count).to eq 3
+        end
+      end
+    end
+  end
+
+  describe '#resolve' do
+    context 'when project boards' do
+      let(:board_parent) { project }
+      let(:label) { project_label }
+
+      it_behaves_like 'group and project board lists resolver'
+    end
+
+    context 'when group boards' do
+      let(:board_parent) { group }
+      let(:label) { group_label }
+
+      it_behaves_like 'group and project board lists resolver'
+    end
+  end
+
+  def resolve_board_lists(args: {}, current_user: user)
+    resolve(described_class, obj: board, args: args, ctx: { current_user: current_user })
+  end
+end