Implemented artisan test case

[marcusmoore]

Description

This PR implements an incomplete test from #15266. The problem was we were assigning $this->artisan to a variable...

The problem is that when we assign $this->artisan to a variable, the command is not actually run until the test method finishes. Because of this, any assertions we make about what the command should have done are going to fail. The command hasn't run yet!

• Mastering Laravel.

Heads up @uberbrady, I cleaned up the second test case but it looks like it was actually failing. It looks like this return is preventing the behavior the test expects:

snipe-it/app/Console/Commands/FixupAssignedToWithoutAssignedType.php

Line 57 in 1706ddd

return;

Type of change

• Bug fix (non-breaking change which fixes an issue)

[what-the-diff]

PR Summary

• Updated Namespace in FixupAssignedToAssignedTypeTest.php
  The change establishes the proper namespace for the test file, enhancing the code organization.

• Updated testEmptyAssignedType() Function
  The function was updated to invoke a command instead of simply marking the test as incomplete. This means, rather than just stating that the test wasn't done, it's now performing an actual test operation and ensures that the command runs without errors.

• Cleaned Up testInvalidAssignedTo() Function
  Unused commented code was removed from the function, making the function cleaner and easier to read.

• Updated Assertions in testEmptyAssignedType() and testInvalidAssignedTo() Functions
  The assertions, which check if the tests are successful, have been updated in these functions. They now verify the current state of the 'asset' record after updates are made, providing a more accurate test result.

[snipe]

Awesome, ty!