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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Diff::FileCollection::MergeRequestDiff do
let(:merge_request) { create(:merge_request) }
let(:subject) { described_class.new(merge_request.merge_request_diff, diff_options: nil) }
let(:diff_files) { subject.diff_files }
describe '#diff_files' do
it 'does not highlight binary files' do
allow_any_instance_of(Gitlab::Diff::File).to receive(:text?).and_return(false)
expect_any_instance_of(Gitlab::Diff::File).not_to receive(:highlighted_diff_lines)
diff_files
end
it 'does not highlight files marked as undiffable in .gitattributes' do
allow_any_instance_of(Gitlab::Diff::File).to receive(:diffable?).and_return(false)
expect_any_instance_of(Gitlab::Diff::File).not_to receive(:highlighted_diff_lines)
diff_files
end
end
it_behaves_like 'unfoldable diff' do
let(:diffable) { merge_request.merge_request_diff }
end
context 'using Gitlab::Diff::DeprecatedHighlightCache' do
before do
stub_feature_flags(hset_redis_diff_caching: false)
end
it 'uses a different cache key if diff line keys change' do
mr_diff = described_class.new(merge_request.merge_request_diff, diff_options: nil)
key = mr_diff.cache_key
stub_const('Gitlab::Diff::Line::SERIALIZE_KEYS', [:foo])
expect(mr_diff.cache_key).not_to eq(key)
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' }
end
it 'returns a valid instance of a DiffCollection' do
expect(diff_files).to be_a(Gitlab::Git::DiffCollection)
end
end
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