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# frozen_string_literal: true
RSpec.shared_examples 'diff statistics' do |test_include_stats_flag: true|
subject { described_class.new(diffable, collection_default_args) }
def stub_stats_find_by_path(path, stats_mock)
expect_next_instance_of(Gitlab::Git::DiffStatsCollection) do |collection|
allow(collection).to receive(:find_by_path).and_call_original
expect(collection).to receive(:find_by_path).with(path).and_return(stats_mock)
end
end
context 'when should request diff stats' do
it 'Repository#diff_stats is called' do
expect(diffable.project.repository)
.to receive(:diff_stats)
.with(diffable.diff_refs.base_sha, diffable.diff_refs.head_sha)
.and_call_original
subject.diff_files
end
it 'Gitlab::Diff::File is initialized with diff stats' do
stats_mock = double(Gitaly::DiffStats, path: '.gitignore', additions: 758, deletions: 120)
stub_stats_find_by_path(stub_path, stats_mock)
diff_file = subject.diff_files.find { |file| file.new_path == stub_path }
expect(diff_file.added_lines).to eq(stats_mock.additions)
expect(diff_file.removed_lines).to eq(stats_mock.deletions)
end
end
context 'when should not request diff stats' do
it 'Repository#diff_stats is not called' do
collection_default_args[:diff_options][:include_stats] = false
expect(diffable.project.repository).not_to receive(:diff_stats)
subject.diff_files
end
end
end
RSpec.shared_examples 'unfoldable diff' do
let(:subject) { described_class.new(diffable, diff_options: nil) }
it 'calls Gitlab::Diff::File#unfold_diff_lines with correct position' do
position = instance_double(Gitlab::Diff::Position, file_path: 'README')
readme_file = instance_double(Gitlab::Diff::File, file_path: 'README')
other_file = instance_double(Gitlab::Diff::File, file_path: 'foo.rb')
nil_path_file = instance_double(Gitlab::Diff::File, file_path: nil)
allow(subject).to receive(:diff_files) { [readme_file, other_file, nil_path_file] }
expect(readme_file).to receive(:unfold_diff_lines).with(position)
subject.unfold_diff_files([position])
end
end
RSpec.shared_examples 'cacheable diff collection' do
let(:cache) { instance_double(Gitlab::Diff::HighlightCache) }
before do
expect(Gitlab::Diff::HighlightCache).to receive(:new).with(subject) { cache }
end
describe '#write_cache' do
it 'calls Gitlab::Diff::HighlightCache#write_if_empty' do
expect(cache).to receive(:write_if_empty).once
subject.write_cache
end
end
describe '#clear_cache' do
it 'calls Gitlab::Diff::HighlightCache#clear' do
expect(cache).to receive(:clear).once
subject.clear_cache
end
end
describe '#cache_key' do
it 'calls Gitlab::Diff::HighlightCache#key' do
expect(cache).to receive(:key).once
subject.cache_key
end
end
describe '#diff_files' do
it 'calls Gitlab::Diff::HighlightCache#decorate' do
expect(cache).to receive(:decorate)
.with(instance_of(Gitlab::Diff::File))
.exactly(cacheable_files_count).times
subject.diff_files
end
end
end
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