describe "brew list", :integration_test do
  let(:formulae) { %w[bar foo qux] }

  it "prints all installed Formulae" do
    formulae.each do |f|
      (HOMEBREW_CELLAR/f/"1.0/somedir").mkpath
    end

    expect { brew "list" }
      .to output("#{formulae.join("\n")}\n").to_stdout
      .and not_to_output.to_stderr
      .and be_a_success
  end
end