[DMN Designer] Data Types - Validations - Validate the uniqueness and the presence of a Data Type name

The Data Type name must be unique at the level that it's defined; e.g.

• tPerson
  • uuid
  • name
  • city (Structure)
    • uuid
    • name

The Data Type above is valid, because tPerson.uuid and tPerson.city.uuid are in different levels.

Prototype:

Manaul Acceptance Test

• Try to put same name by Typing
• Try to put same name by Copy and paste
• Do not allow empty name
• Allow spaces in name
• Allow multibyte chars in name
• Allow special characters in name
• Allow lower upper case in name
• Save when error shown
• Cancel edit when error shown
• Invoke other edit when error shown
  • https://github.com/kiegroup/kie-wb-common/pull/2161#issuecomment-427978978