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  Test Case taDOM3+/7-taDOM3+-23-CO
taDOM3+ Lock Requests of executed Operation getFirstChild(contextElementNode) returns null valueThe getFirstChild operation returns null because the context node CO does not have any child nodes.
Behavior specified with base operations:Read Set = CO COFCE COLCE , Write Set = - LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER]
taDOM3+ Lock Requests of checked Operation appendChild(contextElementNode, childType, childValue) executed on node COThe appendChild operation is executed on the context element node CO and appends a new child to the (at least one) already existing child nodes. The CX resp. NRCX lock on the context node is caused by the SX lock on the new child. The new appended child node (the new last child) is returned.
Bahavior specified with base operations:- readCO
- modifyCOLCE
- modifyLCNSE
Read and write sets for execution on CO:Read Set = CO , Write Set = COLCE LCNSE - LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:-,LCE:EX] on CO
- LockRequest[node=LC,lock:-,PSE:-,NSE:EX,FCE:-,LCE:-] on CO
Operations must be incompatible| Check | Existing LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER]
with
Requested LockRequest[node=CO,lock:NRCX,PSE:-,NSE:-,FCE:-,LCE:EX] on CO | On CO the last child edge lock ER is incompatible to the requested EX
| Incompatible | | Check | Existing LockRequest[node=CO,lock:NR,PSE:-,NSE:-,FCE:ER,LCE:ER]
with
Requested LockRequest[node=LC,lock:-,PSE:-,NSE:EX,FCE:-,LCE:-] on CO | | Compatible | | Test Case Ok |
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