gitlab-org--gitlab-foss/spec/serializers/paginated_diff_entity_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe PaginatedDiffEntity do
let(:user) { create(:user) }
let(:request) { double('request', current_user: user) }
let(:merge_request) { create(:merge_request) }
let(:diff_batch) { merge_request.merge_request_diff.diffs_in_batch(2, 3, diff_options: nil) }
let(:allow_tree_conflicts) { false }
let(:options) do
{
request: request,
merge_request: merge_request,
pagination_data: diff_batch.pagination_data,
allow_tree_conflicts: allow_tree_conflicts
}
end
let(:entity) { described_class.new(diff_batch, options) }
subject { entity.as_json }
it 'exposes diff_files' do
expect(subject[:diff_files]).to be_present
end
it 'exposes pagination data' do
expect(subject[:pagination]).to eq(total_pages: 20)
end
context 'when there are conflicts' do
let(:diff_batch) { merge_request.merge_request_diff.diffs_in_batch(7, 3, diff_options: nil) }
let(:diff_files) { diff_batch.diff_files.to_a }
let(:diff_file_with_conflict) { diff_files.last }
let(:diff_file_without_conflict) { diff_files.first }
let(:resolvable_conflicts) { true }
let(:conflict_file) { double(path: diff_file_with_conflict.new_path, conflict_type: :both_modified) }
let(:conflicts) { double(conflicts: double(files: [conflict_file]), can_be_resolved_in_ui?: resolvable_conflicts) }
let(:merge_ref_head_diff) { true }
let(:options) { super().merge(merge_ref_head_diff: merge_ref_head_diff) }
before do
allow(MergeRequests::Conflicts::ListService).to receive(:new).and_return(conflicts)
end
it 'conflicts are highlighted' do
expect(conflict_file).to receive(:diff_lines_for_serializer)
expect(diff_file_with_conflict).not_to receive(:diff_lines_for_serializer)
expect(diff_file_without_conflict).to receive(:diff_lines_for_serializer).twice # for highlighted_diff_lines and is_fully_expanded
subject
end
context 'merge ref head diff is not chosen to be displayed' do
let(:merge_ref_head_diff) { false }
it 'conflicts are not calculated' do
expect(MergeRequests::Conflicts::ListService).not_to receive(:new)
end
end
context 'when conflicts cannot be resolved' do
let(:resolvable_conflicts) { false }
it 'conflicts are not highlighted' do
expect(conflict_file).not_to receive(:diff_lines_for_serializer)
expect(diff_file_with_conflict).to receive(:diff_lines_for_serializer).twice # for highlighted_diff_lines and is_fully_expanded
expect(diff_file_without_conflict).to receive(:diff_lines_for_serializer).twice # for highlighted_diff_lines and is_fully_expanded
subject
end
context 'when allow_tree_conflicts is set to true' do
let(:allow_tree_conflicts) { true }
it 'conflicts are still highlighted' do
expect(conflict_file).to receive(:diff_lines_for_serializer)
expect(diff_file_with_conflict).not_to receive(:diff_lines_for_serializer)
expect(diff_file_without_conflict).to receive(:diff_lines_for_serializer).twice # for highlighted_diff_lines and is_fully_expanded
subject
end
end
end
end
end