Module\Rpost: Add basic test and fix session access.

Just a basic test to ensure that the module `get()` method behaves
somewhat reasonable when no query params are given.

Had to make a small change to the Rpost module itself. Since the
`$_SESSION` superglobal may not always be set (and is not in the test),
use `isset` instead of `array_key_exists` to check if we have saved
query params in the session.

In general, isset is safer than array_key_exists if there's a chance
that the array itself may not exist.

0 files changed, 0 insertions, 0 deletions