Add unit and integration tests for Cookies

• Type: Story
• Status: Closed
• Priority: Minor
• Resolution: Inactive
• Affects Version/s: 6.2.0 CE M3
• Fix Version/s: None
• Component/s: Testing
• Labels: None
• Epic/Theme:
  • Quick_Win
• Business Value: 3
• Git Pull Request: https://github.com/migue/liferay-portal/pull/95

Add test for CookieUtil and CookeyKeys classes