Here is a test for the help module.
I found the following issue:
Initially, as part of the test, I called
drupalModuleEnable on the blog and poll modules. Similarly to the blog test, the asserts fail for these two modules because
drupalGet returns the 'admin/help' node instead of the respective module help node. If I comment out the two module enable statements, the test works. Is this somehow related to loading these two modules during the test and/or the logged in user not having sufficient privilege?