spec/lib/gitlab/git/checksum_spec.rb


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require 'spec_helper'

describe Gitlab::Git::Checksum, seed_helper: true do
  let(:storage) { 'default' }

  it 'raises Gitlab::Git::Repository::NoRepository when there is no repo' do
    checksum = described_class.new(storage, 'nonexistent-repo')

    expect { checksum.calculate }.to raise_error Gitlab::Git::Repository::NoRepository
  end

  it 'pretends that checksum is 000000... when the repo is empty' do
    FileUtils.rm_rf(File.join(SEED_STORAGE_PATH, 'empty-repo.git'))

    system(git_env, *%W(#{Gitlab.config.git.bin_path} init --bare empty-repo.git),
           chdir: SEED_STORAGE_PATH,
           out:   '/dev/null',
           err:   '/dev/null')

    checksum = described_class.new(storage, 'empty-repo')

    expect(checksum.calculate).to eq '0000000000000000000000000000000000000000'
  end

  it 'raises Gitlab::Git::Repository::Failure when shelling out to git return non-zero status' do
    checksum = described_class.new(storage, 'gitlab-git-test')

    allow(checksum).to receive(:popen).and_return(['output', nil])

    expect { checksum.calculate }.to raise_error Gitlab::Git::Checksum::Failure
  end

  it 'calculates the checksum when there is a repo' do
    checksum = described_class.new(storage, 'gitlab-git-test')

    expect(checksum.calculate).to eq '54f21be4c32c02f6788d72207fa03ad3bce725e4'
  end
end