Mock a Single Instance Method

Patch the object with the method name. In this case VeeamClient is my class and get_successfulP_jobs is the instance method I am mocking.

@patch.object(VeeamClient, 'get_successful_jobs')
@responses.activate
def test_calls_successful(self, mock_get_successful_jobs):
    '''
    Ensure persistently failed jobs calls the successful jobs method
    '''
    ...
    
    mock_get_successful_jobs.assert_called_with(job_name, creationtime)

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