Some test cases can make nodes not ready and use DeferCleanup to bring
nodes back online. Checking if all nodes are online would fail
in such cases as AfterEach runs before DeferCleanup.
Scheduling nodes readines check to DeferCleanup should solve this
issue as nodes would be brought back to a `Ready` state before the
check.
All code must use the context from Ginkgo when doing API calls or polling for a
change, otherwise the code would not return immediately when the test gets
aborted.
This addresses a problem caused by
https://github.com/kubernetes/kubernetes/pull/112043: because the AfterEach
which invokes AllNodesReady always runs, including tests that skipped early,
those tests ran into a nil pointer access. This increased the size of log
files. The tests still worked.
The "todo" packages were necessary while moving code around to avoid hitting
cyclic dependencies. Now that any sub package can depend on the framework, they
are no longer needed and the code can be moved into the normal sub packages.
