 0e72078128
			
		
	
	
		0e72078128
		
	
	
	
	
		
			
			With bash 5.1, the output of the following script changes:
  a=("double  space")
  a=${a[@]:0:1}
  echo "$a"
from "double space" to "double  space", i.e. all white space is
preserved as-is.  This is probably what we actually want here (judging
from the "...to accommodate pathnames with spaces" comment), but before
5.1, we would have to quote the ${} slice to get the same behavior.
In any case, without quoting, the reference output of many iotests is
different between bash 5.1 and pre-5.1, which is not very good.  The
output of 5.1 is what we want, so whatever we do to get pre-5.1 to the
same result, it means we have to fix the reference output of basically
all tests that invoke _send_qemu_cmd (except the ones that only use
single spaces in the commands they invoke).
Instead of quoting the ${} slice (cmd="${$@: 1:...}"), we can also just
not use array slicing and replace the whole thing with a simple "cmd=$1;
shift", which works because all callers quote the whole $cmd argument
anyway.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20201217153803.101231-3-mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
		
	
			
		
			
				
	
	
		
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			59 lines
		
	
	
		
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| QA output created by 182
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| Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=33554432
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| Starting QEMU
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| 
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| Starting a second QEMU using the same image should fail
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| QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=none,id=drive0,file.locking=on: Failed to get "write" lock
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| Is another process using the image [TEST_DIR/t.qcow2]?
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| 
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| === Testing reopen ===
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| 
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| {'execute': 'qmp_capabilities'}
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| {"return": {}}
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| {'execute': 'blockdev-add',
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|       'arguments': {
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|           'node-name': 'node0',
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|           'driver': 'file',
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|           'filename': 'TEST_DIR/t.IMGFMT',
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|           'locking': 'on'
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|           } }
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| {"return": {}}
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| {'execute': 'blockdev-snapshot-sync',
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|       'arguments': {
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|           'node-name': 'node0',
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|           'snapshot-file': 'TEST_DIR/t.IMGFMT.overlay',
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|           'snapshot-node-name': 'node1'
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|       } }
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| Formatting 'TEST_DIR/t.qcow2.overlay', fmt=qcow2 cluster_size=65536 extended_l2=off compression_type=zlib size=197120 backing_file=TEST_DIR/t.qcow2 backing_fmt=file lazy_refcounts=off refcount_bits=16
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| {"return": {}}
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| {'execute': 'blockdev-add',
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|       'arguments': {
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|           'node-name': 'node1',
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|           'driver': 'file',
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|           'filename': 'TEST_DIR/t.IMGFMT',
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|           'locking': 'on'
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|           } }
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| {"return": {}}
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| {'execute': 'nbd-server-start',
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|       'arguments': {
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|           'addr': {
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|               'type': 'unix',
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|               'data': {
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|                   'path': 'SOCK_DIR/nbd.socket'
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|               } } } }
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| {"return": {}}
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| {'execute': 'nbd-server-add',
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|       'arguments': {
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|           'device': 'node1'
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|       } }
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| {"return": {}}
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| 
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| === Testing failure to loosen restrictions ===
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| 
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| {'execute': 'qmp_capabilities'}
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| {"return": {}}
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| {'execute': 'quit'}
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| {"return": {}}
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| {"timestamp": {"seconds":  TIMESTAMP, "microseconds":  TIMESTAMP}, "event": "SHUTDOWN", "data": {"guest": false, "reason": "host-qmp-quit"}}
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| *** done
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