Test Tensorboard functionality in Python extension

[DonJayamanne]

Refs: #14472

• anyOS @karrtikr
• anyOS @rebornix
• anyOS @luabud

Complexity: 4

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Test 1

• Install latest version of VS Code Insiders
• Install latest pre-release version of Python Extension
• Install Python and setup a virtual environment in your workspace (required for installation of tensorboad)
• Open a Python file
• Select the command Python: Launch Tensorboard
• Verify you are prompted to install the Tensorboard extension
• Opon installing the tensorboard extension, verify selecting the command Python: Launch Tensorboard will now work
  • What does it mean by will now work?
  • You will be prompted to install tensorboard
  • Tensoboard UI will be launched (if tensorboard has already been installed)

Test 2

• Install latest version of VS Code Insiders
• Install latest pre-release version of Python Extension
• Install Python and setup a virtual environment in your workspace (required for installation of tensorboad)
• Open a Python file
• Write the following code in the file

import tensorboard

• Verify the code lense Launch Tensorboard Session is displayed
• Click this code lense
• Verify you are prompted to install the Tensorboard extension

[luabud]

You might need to set "python.experiments.optInto": ["pythonRecommendTensorboardExt"], to the User settings.json in case you're unlucky like me and fell in the 10% pre-release bucket that is in the control group

I got the notification as expected:

However clicking on the install button didn't do anything (#14557)

once I manually installed it, I still saw a notification coming from the Python extension (I was expecting it to be coming from the Tensorboard extension, but looking at the logs this seems to be expected)

Tensorboard was launched as expected:

Code lenses also showed up successfully (and it prompted to install the extension when I didn't have the Tensorboard ext installed):