Add tests for livecheck_formula utils
user
```ruby
# frozen_string_literal: true

require "utils/livecheck_formula"

describe LivecheckFormula do
  describe "init", :integration_test do
    it "runs livecheck command for Formula" do
      install_test_formula "testball"

      formatted_response = described_class.init("testball")
    
      expect(formatted_response).not_to be_nil
      expect(formatted_response).to be_a(Hash)
      expect(formatted_response.size).not_to eq(0)

      # expect(formatted_response[:name]).to eq("testball")
      # expect(formatted_response[:formula_version]).not_to be_nil
      # expect(formatted_response[:livecheck_version]).not_to be_nil
    end
  end

  describe "parse_livecheck_response" do
    it "returns a hash of Formula version data" do
      example_raw_command_response = "aacgain : 7834 ==> 1.8"
      formatted_response = described_class.parse_livecheck_response(example_raw_command_response)

      expect(formatted_response).not_to be_nil
      expect(formatted_response).to be_a(Hash)

      expect(formatted_response).to include(:name)
      expect(formatted_response).to include(:formula_version)
      expect(formatted_response).to include(:livecheck_version)

      expect(formatted_response[:name]).to eq("aacgain")
      expect(formatted_response[:formula_version]).to eq("7834")
      expect(formatted_response[:livecheck_version]).to eq("1.8")
    end
  end
end
```
assistant