* fix null-check issues

* Update index.spec.ts

* apply suggestion from review

* fix coverage issue

* Update index.spec.ts

* Apply suggestions from code review

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* Update datasource.spec.ts

* Update lib/modules/datasource/conan/index.spec.ts

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

* Update datasource.spec.ts

* fix null-check issue

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>