Authenticate IBM Quantum account with GH actions to run unit tests

[SaashaJoshi]

This PR builds a GH actions workflow that runs unit tests while authenticating the IBM Quantum account with the help of an IBM_API_TOKEN stored as a GH secret. It partially addresses #261.

The changes aim to run the tests/plugin/test_qiskit_plugins.py file with GH actions.

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Hi, just wanted to let you know that you don’t need to worry about getting the lint + pre-commit passing.

[SaashaJoshi]

Thanks for letting me know. I was indeed worried about the linting.

[SaashaJoshi]

Hey @GenericP3rson, the latest GH workflow gives the following error,

FAILED test/plugin/test_qiskit_plugins.py::test_expval_observable - qiskit_ibm_runtime.accounts.exceptions.AccountNotFoundError: 'Unable to find account.'

Just wanted to make sure that we use the same keyword for the GH secret, which is `IBM_API_TOKEN'. Let me know if this is different and I will reflect those changes in the code. If this is not causing the error, I will brainstorm more.

[SaashaJoshi]

@GenericP3rson, Could you approve the workflow for the latest commit? Since the GH secret is sorted, I think this should work!

[SaashaJoshi]

Okay, the AccountNotFound error persists. I am not sure what is going wrong here. I am able to run the tests successfully on my local machine though. I even have a PR on my fork of torchquantum and the tests pass there. For reference, check this

PS: I am using this API token from my IBM quantum platform.

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Hi, so sorry, I have not yet added the secret yet; I don’t have the permissions to add secrets to this repo at the moment but will get it added ASAP!

While I’m getting that sorted, to fully complete the task, if you want to add a set of tests for some function (either as a separate PR or with this), that would be great!

[SaashaJoshi]

No problem!
Absolutely, I will add a few test classes to increase the coverage.

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Merging the PR, congrats!