Empty template fails

[aurelien-baudet]

When providing an empty template, the message can't be sent due to invalid mimetype. Should either fail with another error indicating that the template is empty (more easy to find how to fix it) or should allow it and provide a default mimetype.

[aurelien-baudet]

MultiContentTranslator, translated can be null due to variant => throw dedicated exception ?

[aurelien-baudet]

This case is different from a template not found because the template is found but its content is just empty. So there should not report an error. The aim is to let developer test Ogham quickly even without template content.

Implemented behavior:

• Single template:
  • empty template => OK
  • path to a template points to nothing => error
  • template contains parsing error => error
• MultiContent template:
  • one empty template => OK
  • all empty templates => OK
  • one path to templates points to nothing but the other does => OK (allow to have only one variant to begin and add the other variant later)
  • all paths to templates points to nothing => error (because developer may need help to know if path is valid or not)
  • one template contains parsing error => error