Add tests for livecheck_formula utils

Library/Homebrew/test/utils/livecheck_formula_spec.rb

@@ -0,0 +1,39 @@
+# 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