Writing acceptance test of "ecrpublic"

Hello guys,

I created a data source to fetch ecrpublic_image, but I’m not sure how to write an acceptance test for it. In a similar example, the ecr_image (private ECR) data source uses the publicly available amazonlinux:latest image. However, for ecrpublic, I’m unsure how to handle this.

PR : [New Data Source] aws_ecrpublic_image by liljoon · Pull Request #41790 · hashicorp/terraform-provider-aws · GitHub