e2e test - Dataset exist / Dataset sizes validates a hardcoded list

This test validates a hardcoded list. Must change to environment variables OR the test script must be updated.

{ "datasets":[ "/async/dsx01", "/a/b/c/dsx02", "async/dsx03", "test/dsx01", "{{path01}}/{{dataset01}}" ] }

Similarly, the Dataset Sizes test also validates the sizes for a hardcoded list

Edited by Rucha Deshpande