Get your IT department to make you some new users. My normal windows login username is jsculley, but I had our IT folks create jsculley-admin as another login so that I could do admin stuff and so that I could differentiate between changes I made and those made by our other admin.
I assume by the statement that your company's security policy is strict means that IT doesn't want to create "dummy" accounts. For testing purposes, you really should set up a test vault and use SolidWorks Enterprise PDM login.
If your users are only inheriting rights from the groups they belong to you can test as yourself. Take yourself out of all groups except for the group you want to test. You can quickly change from group to group and see how your environment changes.
Just make sure you have access to the ADMIN password in case you put yourself into a group and suddenly cannot take yourself out!