test/hs/shelltests/htools-balancing.test

### std tests

# test basic parsing
./test/hs/hinfo -v -v -p --print-instances $BACKEND_BAL_STD
>>>= 0
./test/hs/hbal -v -v -v -p --print-instances $BACKEND_BAL_STD -G group-01
>>> !/(Nothing to do, exiting|No solution found)/
>>>2 !/(Nothing to do, exiting|No solution found)/
>>>= 0

# test command output
./test/hs/hbal $BACKEND_BAL_STD -G group-01 -C -S $T/simu-rebal.standard
>>> /gnt-instance (failover|migrate|replace-disks)/
>>>= 0

# test that correct priorities are accepted
./test/hs/hbal $BACKEND_BAL_STD -G group-01 -C -S $T/simu-rebal.standard --prio low
>>> /gnt-instance (failover|migrate|replace-disks)/
>>>= 0


# test that hbal won't execute rebalances when using the text backend
./test/hs/hbal $BACKEND_BAL_STD -G group-01 -X
>>>2
Error: hbal: Execution of commands possible only on LUXI
>>>= !0

# test that hbal won't execute any moves if we request an absurdly-high
# minimum-improvement
./test/hs/hbal $BACKEND_BAL_STD -G group-01 -C --min-gain 10000 --min-gain-limit 10000
>>>/No solution found/
>>>= 0

# test saving commands
./test/hs/hbal $BACKEND_BAL_STD -G group-01 -C$T/rebal-cmds.standard
>>>= 0
# and now check the file (depends on previous test)
cat $T/rebal-cmds.standard
>>> /gnt-instance (failover|migrate|replace-disks)/
>>>= 0

# state saved before rebalancing should be identical; depends on the
# previous test
diff -u $T/simu-rebal-merged.standard $T/simu-rebal.standard.original
>>>
>>>= 0

# no double rebalance; depends on previous test
./test/hs/hbal -t $T/simu-rebal.standard.balanced -G group-01
>>> /(Nothing to do, exiting|No solution found)/
>>>= 0

# hcheck sees no reason to rebalance after rebalancing was already done
./test/hs/hcheck -t$T/simu-rebal.standard.balanced --machine-readable
>>> /HCHECK_INIT_CLUSTER_NEED_REBALANCE=0/
>>>= 0

### now tiered tests

# test basic parsing
./test/hs/hinfo -v -v -p --print-instances $BACKEND_BAL_TIER
>>>= 0
./test/hs/hbal -v -v -v -p --print-instances $BACKEND_BAL_TIER -G group-01
>>> !/(Nothing to do, exiting|No solution found)/
>>>2 !/(Nothing to do, exiting|No solution found)/
>>>= 0

# test command output
./test/hs/hbal $BACKEND_BAL_TIER -G group-01 -C -S $T/simu-rebal.tiered
>>> /gnt-instance (failover|migrate|replace-disks)/
>>>= 0

# test saving commands
./test/hs/hbal $BACKEND_BAL_TIER -G group-01 -C$T/rebal-cmds.tiered
>>>= 0
# and now check the file (depends on previous test)
cat $T/rebal-cmds.tiered
>>> /gnt-instance (failover|migrate|replace-disks)/
>>>= 0

# state saved before rebalancing should be identical; depends on the
# previous test
diff -u $T/simu-rebal-merged.tiered $T/simu-rebal.tiered.original
>>>
>>>= 0

# no double rebalance; depends on previous test
./test/hs/hbal -t $T/simu-rebal.tiered.balanced -G group-01
>>> /(Nothing to do, exiting|No solution found)/
>>>= 0

### now some other custom tests

# n+1 bad instances are reported as such
./test/hs/hbal -t$TESTDATA_DIR/n1-failure.data -G group-01
>>>/Initial check done: 4 bad nodes, 8 bad instances./
>>>=0

# same test again, different message check (shelltest can't test multiple
# messages via regexp
./test/hs/hbal -t$TESTDATA_DIR/n1-failure.data -G group-01
>>>/Cluster is not N\+1 happy, continuing but no guarantee that the cluster will end N\+1 happy./
>>>2
>>>=0

# and hcheck should report this as needs rebalancing
./test/hs/hcheck -t$TESTDATA_DIR/n1-failure.data
>>>/Cluster needs rebalancing./
>>>= 1

# ... unless we request no-simulation mode
./test/hs/hcheck -t$TESTDATA_DIR/n1-failure.data --no-simulation
>>>/Running in no-simulation mode./
>>>= 0

# and a clean cluster should be reported as such
./test/hs/hcheck $BACKEND_BAL_STD
>>>/No need to rebalance cluster, no problems found./
>>>= 0

# ... and even one with non-zero score
./test/hs/hcheck -t $TESTDATA_DIR/clean-nonzero-score.data
>>>/No need to rebalance cluster, no problems found./
>>>= 0

# hbal should work on empty groups as well
./test/hs/hbal -t$TESTDATA_DIR/n1-failure.data -G group-02
>>>/Group size 0 nodes, 0 instances/
>>>= 0