src/test/resources/features/artifacts-extension.json

{
  "id": "test/artifacts-extension/1.0.0",
  "my-extension1:ARTIFACTS|false":[
    "org.apache.sling/my-extension1/1.2.3"
  ],
  "my-extension2:ARTIFACTS|true":[
    "org.apache.sling/my-extension2/1.2.3"
  ]
}