Cannot reorder a message whose size is 0 B

[v-xianya]

Storage Explorer Version: 1.30.0-dev
Build Number: 20230505.3
Branch: main
Platform/OS: Windows 10/Linux Ubuntu 22.04/MacOS Ventura 13.3.1 (Apple M1 Pro)
Architecture: x64
How Found: From running test cases
Regression From: Previous release (1.28.1)

Steps to Reproduce

1. Expand one storage account -> Queues.
2. Create a queue -> Add one message with 0 B.
3. Add another message with content.
4. Reorder the two messages by size.
5. Check whether succeeds to reorder the two messages.

Expected Experience

Succeeds to reorder the two messages.

Actual Experience

Fail to reorder the two messages.

Additional Context

A message of size 0 B defaults to being the last message.

[JasonYeMSFT]

@craxal Please investigate the cause of the bug and see if it needs a hot fix?

[craxal]

Cause is due to a test that mistakes 0 for null or undefined, and null/undefined items are ordered after all defined items. To fix, thee code just needs to test more specifically for null or undefined instead of falsy values.

[v-kellyluo]

Verified this issue on the build 20230509.5. Fixed. So, we are going to close it.