Improve testability and unit test coverage of moduletemplateinfolookup

[c-pius]

Description

Improve the testability of the code in moduletemplateinfolookup and cover it with more unit tests. This should at least include:

• "by_channel_strategy":
  • Test for Lookup when no templates are found
  • Test for Lookup when more than one template is found
  • Test for Lookup when the template has no channel
  • Test for Lookup when the template is marked as mandatory
• "by_version_strategy":
  • When filterTemplatesByVersion returns an error due to failing to list module templates
  • When filterTemplatesByVersion returns an error due to more than one template candidate
  • When filterTemplatesByVersion returns an error due to no templates found
  • When filterTemplatesByVersion returns an error due to the template being marked as mandatory
• "module_release_meta_strategy":
  • Test for Lookup when GetChannelVersionForModule returns an error
  • Test for Lookup when getTemplateByVersion returns an error
• helper functions in "common"

Reasons

Follow-up from: #2200

We refactored the template lookup and already increased test coverage of the copied code. We should further strive to increase the test coverage.

Acceptance Criteria

• tests mentioned above covered

Feature Testing

No response

Testing approach

No response

Attachments

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