[TEST] Add unit tests for `WeightedTensor`
What does the code in the MR do ?
This MR proposes to add unit tests for WeightedTensor
objects introduced in !97 (merged)
Where should the reviewer start ?
The reviewer can start by running the tests. The MR should be pretty straightforward to review as all added tests live in a new Python file and there is (almost) no modifications to other files.
How can the code be tested ?
By running the added unit tests.
When is the MR due for? (review deadline)
No date.
What issues are linked to the MR ?
None.