Add test to verify that token from different secret is not accepted

Token is generated by one AuthManager and passed into another for
parsing. As AuthManager have different secrets, parsing should fail.

Change-Id: I5d83cf579690eeafc6745f516c3ccb2702423039
Reviewed-on: https://weave-review.googlesource.com/1945
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
2 files changed