Prefer assert_eq over is_ok() checks

We experienced various problems running the tests and while they may or
may not be caused by local setup issues, it is helpful to have more
information than just an indication that an assertion (true/false) was
violated.
To that end, this change adjusts some of the assert!(<func>().is_ok())
to compare against Ok(()) instead. This way, if the result is not the Ok
variant, the error code will get printed.

0 files changed, 0 insertions, 0 deletions