func newLockBasedTxSimulator(txmgr *LockBasedTxMgr) *lockBasedTxSimulator {
rwset := rwset.NewRWSet()
helper := &queryHelper{txmgr: txmgr, rwset: rwset}
id := util.GenerateUUID()
logger.Debugf("constructing new tx simulator [%s]", id)
return &lockBasedTxSimulator{lockBasedQueryExecutor{helper, id}, rwset}
}
func TestValidator(t *testing.T) {
testDBEnv := stateleveldb.NewTestVDBEnv(t, testDBPath)
defer testDBEnv.Cleanup()
db := testDBEnv.DB
//populate db with initial data
batch := statedb.NewUpdateBatch()
batch.Put("ns1", "key1", []byte("value1"), version.NewHeight(1, 1))
batch.Put("ns1", "key2", []byte("value2"), version.NewHeight(1, 2))
batch.Put("ns1", "key3", []byte("value3"), version.NewHeight(1, 3))
batch.Put("ns1", "key4", []byte("value4"), version.NewHeight(1, 4))
batch.Put("ns1", "key5", []byte("value5"), version.NewHeight(1, 5))
db.ApplyUpdates(batch, version.NewHeight(1, 5))
validator := NewValidator(db)
//rwset1 should be valid
rwset1 := rwset.NewRWSet()
rwset1.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
rwset1.AddToReadSet("ns2", "key2", nil)
checkValidation(t, validator, []*rwset.RWSet{rwset1}, []int{})
//rwset2 should not be valid
rwset2 := rwset.NewRWSet()
rwset2.AddToReadSet("ns1", "key1", version.NewHeight(1, 2))
checkValidation(t, validator, []*rwset.RWSet{rwset2}, []int{0})
//rwset3 should not be valid
rwset3 := rwset.NewRWSet()
rwset3.AddToReadSet("ns1", "key1", nil)
checkValidation(t, validator, []*rwset.RWSet{rwset3}, []int{0})
// rwset4 and rwset5 within same block - rwset4 should be valid and makes rwset5 as invalid
rwset4 := rwset.NewRWSet()
rwset4.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
rwset4.AddToWriteSet("ns1", "key1", []byte("value1_new"))
rwset5 := rwset.NewRWSet()
rwset5.AddToReadSet("ns1", "key1", version.NewHeight(1, 1))
checkValidation(t, validator, []*rwset.RWSet{rwset4, rwset5}, []int{1})
}