One of the comments in the post: βYou can see the wall of the test account by logging in to both the test account and as a friend of this test account (only test accounts can be friendly test accounts). Use the login_url property to logging in. "
Therefore, I suggest that you log in as a user and add information such as a regular profile, and then try to access it. I do not believe that it gives you "dummy data" by default, other than your login information.
Also: see the document for test users . He received information about restrictions and ways to access user accounts.
UPDATE: AFAIK for api test user does not allow to resolve requests with api schedule for information other than login token.
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