issue: #46038
- Add assertSegmentPlanNumAndTargetNodeMatch and
assertChannelPlanNumAndTargetNodeMatch helper functions to validate plan
count and target node membership for unstable assignment tests
- Mark "test assigning channels with resource exhausted nodes" as
unstable since node 2 and 3 have equal priority after filtering
- Replace simple length check with target node validation to ensure
plans assign to expected node set even when order is non-deterministic
Signed-off-by: Wei Liu <wei.liu@zilliz.com>
0c63ed95bb