Globalization testing checks proper functionality of the product, using every type of international input possible. It ensures that without breaking functionality the code can handle all international support .
Globalization testing is to ensure that application can function in any culture or locale (language, territory and code page) It is also called as Internationalization Testing.
In a globalized product, code is separated from the messages or information. With the help of globalization, it enables software to be used with different languages without having to redesign the complete software.