[BUG] CloudShell tools tests are failing to run

[surajssd]

With error: The term 'Install-Module' is not recognized as a name of a cmdlet, function, script file, or executable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

To Reproduce

Run the following command to reproduce this issue:

docker run \
   --volume $(pwd)/tests:/tests \
   -it ghcr.io/surajssd/cloudshell/tools:master-a9a24d4-20250210-122546 \
   /tests/test.sh

Above image was built on Feb 10th.

Observed Behavior

$ docker run \
   --volume $(pwd)/tests:/tests \
   -it ghcr.io/surajssd/cloudshell/tools:master-a9a24d4-20250210-122546 /tests/test.sh
Creating user
running root-level tests

Starting discovery in 1 files.
Discovery found 1 tests in 154ms.
Running tests.
[+] /tests/Root.Tests.ps1 59.3s (58.95s|221ms)
Tests completed in 59.31s
Tests Passed: 1, Failed: 0, Skipped: 0, Inconclusive: 0, NotRun: 0
running tests as csuser
Install-Module: /tests/test.ps1:8
Line |
   8 |  Install-Module -Name Pester -Force
     |  ~~~~~~~~~~~~~~
     | The term 'Install-Module' is not recognized as a name of a cmdlet, function, script file, or executable program. Check the spelling of the name, or if
     | a path was included, verify that the path is correct and try again.

Expected behavior

The tests should pass.

Is this specific to Cloud Shell?

Something seems to be wrong with the Powershell installation.

Interface information

Using the poweshell image locally.

Additional context

Here is a GH action run that failed: https://github.com/Azure/CloudShell/actions/runs/13231016533/job/36928157459