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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Diff::FileCollection::MergeRequestDiffBatch do
let(:merge_request) { create(:merge_request) }
let(:batch_page) { 1 }
let(:batch_size) { 10 }
let(:diffable) { merge_request.merge_request_diff }
let(:diff_files_relation) { diffable.merge_request_diff_files }
subject do
described_class.new(diffable,
batch_page,
batch_size,
diff_options: nil)
end
let(:diff_files) { subject.diff_files }
describe 'initialize' do
it 'memoizes pagination_data' do
expect(subject.pagination_data).to eq(current_page: 1, next_page: 2, total_pages: 2)
end
end
describe '#diff_files' do
let(:batch_size) { 3 }
let(:paginated_rel) { diff_files_relation.page(batch_page).per(batch_size) }
let(:expected_batch_files) do
paginated_rel.map(&:new_path)
end
it 'returns paginated diff files' do
expect(diff_files.size).to eq(3)
end
it 'returns a valid instance of a DiffCollection' do
expect(diff_files).to be_a(Gitlab::Git::DiffCollection)
end
context 'first page' do
it 'returns correct diff files' do
expect(diff_files.map(&:new_path)).to eq(expected_batch_files)
end
end
context 'another page' do
let(:batch_page) { 2 }
it 'returns correct diff files' do
expect(diff_files.map(&:new_path)).to eq(expected_batch_files)
end
end
context 'nil batch_page' do
let(:batch_page) { nil }
it 'returns correct diff files' do
expected_batch_files =
diff_files_relation.page(described_class::DEFAULT_BATCH_PAGE).per(batch_size).map(&:new_path)
expect(diff_files.map(&:new_path)).to eq(expected_batch_files)
end
end
context 'nil batch_size' do
let(:batch_size) { nil }
it 'returns correct diff files' do
expected_batch_files =
diff_files_relation.page(batch_page).per(described_class::DEFAULT_BATCH_SIZE).map(&:new_path)
expect(diff_files.map(&:new_path)).to eq(expected_batch_files)
end
end
context 'invalid page' do
let(:batch_page) { 999 }
it 'returns correct diff files' do
expect(diff_files.map(&:new_path)).to be_empty
end
end
context 'last page' do
it 'returns correct diff files' do
last_page = paginated_rel.total_pages
collection = described_class.new(diffable,
last_page,
batch_size,
diff_options: nil)
expected_batch_files = diff_files_relation.page(last_page).per(batch_size).map(&:new_path)
expect(collection.diff_files.map(&:new_path)).to eq(expected_batch_files)
end
end
end
it_behaves_like 'unfoldable diff' do
subject do
described_class.new(merge_request.merge_request_diff,
batch_page,
batch_size,
diff_options: nil)
end
end
it_behaves_like 'diff statistics' do
let(:collection_default_args) do
{ diff_options: {} }
end
let(:diffable) { merge_request.merge_request_diff }
let(:stub_path) { '.gitignore' }
subject do
described_class.new(merge_request.merge_request_diff,
batch_page,
batch_size,
collection_default_args)
end
end
end
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