require 'spec_helper' describe MergeRequestDiff, models: true do describe '#diffs' do let(:mr) { create(:merge_request, :with_diffs) } let(:mr_diff) { mr.merge_request_diff } context 'when the :ignore_whitespace_change option is set' do it 'creates a new compare object instead of loading from the DB' do expect(mr_diff).not_to receive(:load_diffs) expect(Gitlab::Git::Compare).to receive(:new).and_call_original mr_diff.raw_diffs(ignore_whitespace_change: true) end end context 'when the raw diffs are empty' do before { mr_diff.update_attributes(st_diffs: '') } it 'returns an empty DiffCollection' do expect(mr_diff.raw_diffs).to be_a(Gitlab::Git::DiffCollection) expect(mr_diff.raw_diffs).to be_empty end end context 'when the raw diffs exist' do it 'returns the diffs' do expect(mr_diff.raw_diffs).to be_a(Gitlab::Git::DiffCollection) expect(mr_diff.raw_diffs).not_to be_empty end context 'when the :paths option is set' do let(:diffs) { mr_diff.raw_diffs(paths: ['files/ruby/popen.rb', 'files/ruby/popen.rb']) } it 'only returns diffs that match the (old path, new path) given' do expect(diffs.map(&:new_path)).to contain_exactly('files/ruby/popen.rb') end it 'uses the diffs from the DB' do expect(mr_diff).to receive(:load_diffs) diffs end end end end end