Cannot use DataLakePathClient to do things with the root path

[MRayermannMSFT]

• Package Name: @azure/storage-file-datalake
• Package Version: 12.2.0
• Operating system: any
• nodejs
  • version: 12
• browser
  • name/version:
• typescript
  • version:
• Is the bug related to documentation in
  • README.md
  • source code documentation
  • SDK API docs on https://docs.microsoft.com

Describe the bug
If I create a DataLakePathClient with a URL like https://accountname.dfs.core.windows.net/containername/somefolder then things work as expected. But, if I try to use a URL that points to the root path, such as either:

• https://accountname.dfs.core.windows.net/containername/ (this one I would most expect to work)
• https://accountname.dfs.core.windows.net/containername (this one seems to point more to the container, I'm ok if it doesn't work)

then the SDK throws the following error:

message:'Unable to extract blobName and containerName with provided information.'

which appears to originate from here:

because blobName is an empty string.

If I debug into the SDK and avoid the error by temporarily changing the parsed blobName to be something not empty string before the if check, and then back to empty string after the if check, then things work as expected.

To Reproduce
Steps to reproduce the behavior:

1. Create a DataLakePathClient which points to the root directory.

Expected behavior
The root is a valid path, so I should be able to use a path client with it.

Screenshots
N/A

Additional context
N/A

[ljian3377]

Yes, this is a bug.

Need to find out what's the right blobName for a root path. We should allow empty blobName as long as it works with the SAS logic.

[MRayermannMSFT]

Thanks for the fast resolution @ljian3377 !