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