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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Git::CrossRepo do
let_it_be(:source_project) { create(:project, :repository) }
let_it_be(:target_project) { create(:project, :repository) }
let(:source_repo) { source_project.repository.raw_repository }
let(:target_repo) { target_project.repository.raw_repository }
let(:source_branch) { 'feature' }
let(:target_branch) { target_repo.root_ref }
let(:source_commit) { source_repo.commit(source_branch) }
let(:target_commit) { source_repo.commit(target_branch) }
def execute(&block)
described_class.new(source_repo, target_repo).execute(target_branch, &block)
end
describe '#execute' do
context 'when executed within a single repository' do
let(:target_project) { source_project }
it 'does not fetch from another repo' do
expect(source_repo).not_to receive(:fetch_source_branch!)
expect { |block| execute(&block) }.to yield_with_args(target_branch)
end
end
context 'when executed across two repositories' do
context 'and target ref exists in source repo' do
it 'does not fetch from another repo' do
expect(source_repo).not_to receive(:fetch_source_branch!)
expect(source_repo).not_to receive(:delete_refs)
expect { |block| execute(&block) }.to yield_with_args(target_commit.id)
end
end
context 'and target ref does not exist in source repo' do
let_it_be(:target_project) { create(:project, :repository) }
it 'fetches from the target to a temporary ref' do
new_commit_id = create_commit(target_project.owner, target_repo, target_branch)
# This is how the temporary ref is generated
expect(SecureRandom).to receive(:hex).at_least(:once).and_return('foo')
expect(source_repo)
.to receive(:fetch_source_branch!)
.with(target_repo, new_commit_id, 'refs/tmp/foo')
.and_call_original
expect(source_repo).to receive(:delete_refs).with('refs/tmp/foo').and_call_original
expect { |block| execute(&block) }.to yield_with_args(new_commit_id)
end
end
context 'and target ref does not exist in target repo' do
let(:target_branch) { 'does-not-exist' }
it 'returns nil' do
expect(source_repo).not_to receive(:fetch_source_branch!)
expect(source_repo).not_to receive(:delete_refs)
expect { |block| execute(&block) }.not_to yield_control
end
end
end
end
def create_commit(user, repo, branch)
action = { action: :create, file_path: '/FILE', content: 'content' }
result = repo.commit_files(user, branch_name: branch, message: 'Commit', actions: [action])
result.newrev
end
end
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