Example #1
0
func TestStateDeltaCryptoHash(t *testing.T) {
	stateDelta := NewStateDelta()

	testutil.AssertNil(t, stateDelta.ComputeCryptoHash())

	stateDelta.Set("chaincodeID1", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID2", "key1", []byte("value1"), nil)
	testutil.AssertEquals(t, stateDelta.ComputeCryptoHash(), testutil.ComputeCryptoHash([]byte("chaincodeID1key1value1key2value2chaincodeID2key1value1key2value2")))

	stateDelta.Delete("chaincodeID2", "key1", nil)
	testutil.AssertEquals(t, stateDelta.ComputeCryptoHash(), testutil.ComputeCryptoHash([]byte("chaincodeID1key1value1key2value2chaincodeID2key1key2value2")))
}
Example #2
0
func TestStateImpl_ComputeHash_AllInMemory_1(t *testing.T) {
	// number of buckets at each level 26,9,3,1
	testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 3)
	testHasher.populate("chaincodeID1", "key1", 0)
	testHasher.populate("chaincodeID2", "key2", 0)
	testHasher.populate("chaincodeID3", "key3", 0)
	testHasher.populate("chaincodeID4", "key4", 3)

	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
	stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)

	rootHash := stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)

	expectedHashBucket3_1 := expectedBucketHashForTest(
		[]string{"chaincodeID1", "key1", "value1"},
		[]string{"chaincodeID2", "key2", "value2"},
		[]string{"chaincodeID3", "key3", "value3"},
	)
	expectedHashBucket3_4 := expectedBucketHashForTest(
		[]string{"chaincodeID4", "key4", "value4"},
	)
	expectedHash := testutil.ComputeCryptoHash(expectedHashBucket3_1, expectedHashBucket3_4)
	testutil.AssertEquals(t, rootHash, expectedHash)
}
Example #3
0
func TestBucketNodeComputeHash(t *testing.T) {
	conf = newConfig(26, 3, fnvHash)
	bucketNode := newBucketNode(newBucketKey(2, 7))
	testutil.AssertEquals(t, bucketNode.computeCryptoHash(), nil)

	childKey1 := newBucketKey(3, 19)
	bucketNode.setChildCryptoHash(childKey1, []byte("cryptoHashChild1"))
	testutil.AssertEquals(t, bucketNode.computeCryptoHash(), []byte("cryptoHashChild1"))

	childKey3 := newBucketKey(3, 21)
	bucketNode.setChildCryptoHash(childKey3, []byte("cryptoHashChild3"))
	testutil.AssertEquals(t, bucketNode.computeCryptoHash(), testutil.ComputeCryptoHash([]byte("cryptoHashChild1cryptoHashChild3")))

	childKey2 := newBucketKey(3, 20)
	bucketNode.setChildCryptoHash(childKey2, []byte("cryptoHashChild2"))
	testutil.AssertEquals(t, bucketNode.computeCryptoHash(), testutil.ComputeCryptoHash([]byte("cryptoHashChild1cryptoHashChild2cryptoHashChild3")))
}
Example #4
0
func TestStateImpl_ComputeHash_AllInMemory_2(t *testing.T) {
	// number of buckets at each level 26,13,7,4,2,1
	testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 2)
	// first two buckets - meet at next level
	testHasher.populate("chaincodeID1", "key1", 0)
	testHasher.populate("chaincodeID2", "key2", 1)

	// middle two buckets
	testHasher.populate("chaincodeID3", "key3", 5)
	testHasher.populate("chaincodeID4", "key4", 9)

	// last two buckets - meet at next level
	testHasher.populate("chaincodeID5", "key5", 24)
	testHasher.populate("chaincodeID6", "key6", 25)

	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
	stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
	stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
	stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)

	rootHash := stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)

	expectedHashBucket5_1 := expectedBucketHashForTest([]string{"chaincodeID1", "key1", "value1"})
	expectedHashBucket5_2 := expectedBucketHashForTest([]string{"chaincodeID2", "key2", "value2"})
	expectedHashBucket5_6 := expectedBucketHashForTest([]string{"chaincodeID3", "key3", "value3"})
	expectedHashBucket5_10 := expectedBucketHashForTest([]string{"chaincodeID4", "key4", "value4"})
	expectedHashBucket5_25 := expectedBucketHashForTest([]string{"chaincodeID5", "key5", "value5"})
	expectedHashBucket5_26 := expectedBucketHashForTest([]string{"chaincodeID6", "key6", "value6"})

	expectedHashBucket4_1 := testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
	expectedHashBucket4_13 := testutil.ComputeCryptoHash(expectedHashBucket5_25, expectedHashBucket5_26)

	expectedHashBucket2_1 := testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket5_6)

	expectedHashBucket1_1 := testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)

	expectedHash := testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket4_13)
	testutil.AssertEquals(t, rootHash, expectedHash)
}
Example #5
0
func TestLedgerGetTempStateHashWithTxDeltaStateHashes(t *testing.T) {
	ledgerTestWrapper := createFreshDBAndTestLedgerWrapper(t)
	ledger := ledgerTestWrapper.ledger
	ledger.BeginTxBatch(1)
	ledger.TxBegin("txUuid1")
	ledger.SetState("chaincode1", "key1", []byte("value1"))
	ledger.TxFinished("txUuid1", true)

	ledger.TxBegin("txUuid2")
	ledger.SetState("chaincode2", "key2", []byte("value2"))
	ledger.TxFinished("txUuid2", true)

	ledger.TxBegin("txUuid3")
	ledger.TxFinished("txUuid3", true)

	ledger.TxBegin("txUuid4")
	ledger.SetState("chaincode4", "key4", []byte("value4"))
	ledger.TxFinished("txUuid4", false)

	_, txDeltaHashes, _ := ledger.GetTempStateHashWithTxDeltaStateHashes()
	testutil.AssertEquals(t, testutil.ComputeCryptoHash([]byte("chaincode1key1value1")), txDeltaHashes["txUuid1"])
	testutil.AssertEquals(t, testutil.ComputeCryptoHash([]byte("chaincode2key2value2")), txDeltaHashes["txUuid2"])
	testutil.AssertNil(t, txDeltaHashes["txUuid3"])
	_, ok := txDeltaHashes["txUuid4"]
	if ok {
		t.Fatalf("Entry for a failed Tx should not be present in txDeltaHashes map")
	}
	ledger.CommitTxBatch(1, []*protos.Transaction{}, nil, []byte("proof"))

	ledger.BeginTxBatch(2)
	ledger.TxBegin("txUuid1")
	ledger.SetState("chaincode1", "key1", []byte("value1"))
	ledger.TxFinished("txUuid1", true)
	_, txDeltaHashes, _ = ledger.GetTempStateHashWithTxDeltaStateHashes()
	if len(txDeltaHashes) != 1 {
		t.Fatalf("Entries in txDeltaHashes map should only be from current batch")
	}
}
Example #6
0
func TestBucketHashCalculator(t *testing.T) {
	c := newBucketHashCalculator(newBucketKey(1, 1))

	testutil.AssertEquals(t, c.computeCryptoHash(), nil)

	c.addNextNode(newDataNode(newDataKey("chaincodeID1", "key1"), []byte("value1")))

	c.addNextNode(newDataNode(newDataKey("chaincodeID_2", "key_1"), []byte("value_1")))
	c.addNextNode(newDataNode(newDataKey("chaincodeID_2", "key_2"), []byte("value_2")))

	c.addNextNode(newDataNode(newDataKey("chaincodeID3", "key1"), []byte("value1")))
	c.addNextNode(newDataNode(newDataKey("chaincodeID3", "key2"), []byte("value2")))
	c.addNextNode(newDataNode(newDataKey("chaincodeID3", "key3"), []byte("value3")))

	hash := c.computeCryptoHash()
	expectedHashContent := expectedBucketHashContentForTest(
		[]string{"chaincodeID1", "key1", "value1"},
		[]string{"chaincodeID_2", "key_1", "value_1", "key_2", "value_2"},
		[]string{"chaincodeID3", "key1", "value1", "key2", "value2", "key3", "value3"},
	)
	t.Logf("Actual HashContent = %#v\n Expected HashContent = %#v", c.hashingData, expectedHashContent)
	testutil.AssertEquals(t, hash, testutil.ComputeCryptoHash(expectedHashContent))
}
Example #7
0
func expectedBucketHashForTest(data ...[]string) []byte {
	return testutil.ComputeCryptoHash(expectedBucketHashContentForTest(data...))
}
func TestStateImpl_DB_Changes(t *testing.T) {
	// number of buckets at each level 26,9,3,1
	testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 3)
	// populate hash fucntion such that
	// ["chaincodeID1", "key1"] is bucketized to bucket 1
	testHasher.populate("chaincodeID1", "key1", 0)
	testHasher.populate("chaincodeID1", "key2", 0)
	testHasher.populate("chaincodeID2", "key1", 1)
	testHasher.populate("chaincodeID2", "key3", 3)
	testHasher.populate("chaincodeID10", "key10", 24)

	// prepare stateDelta
	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID1", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID2", "key1", []byte("value3"), nil)
	stateDelta.Set("chaincodeID2", "key3", []byte("value4"), nil)

	stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()

	// Read state from DB
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID1", "key1"), []byte("value1"))
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID2", "key1"), []byte("value3"))

	// fetch datanode from DB
	dataNodeFromDB, _ := fetchDataNodeFromDB(newDataKey("chaincodeID2", "key1"))
	testutil.AssertEquals(t, dataNodeFromDB, newDataNode(newDataKey("chaincodeID2", "key1"), []byte("value3")))

	//fetch non-existing data node from DB
	dataNodeFromDB, _ = fetchDataNodeFromDB(newDataKey("chaincodeID10", "key10"))
	t.Logf("isNIL...[%t]", dataNodeFromDB == nil)
	testutil.AssertNil(t, dataNodeFromDB)

	// fetch all data nodes from db that belong to bucket 1 at lowest level
	dataNodesFromDB, _ := fetchDataNodesFromDBFor(newBucketKeyAtLowestLevel(1))
	testutil.AssertContainsAll(t, dataNodesFromDB,
		dataNodes{newDataNode(newDataKey("chaincodeID1", "key1"), []byte("value1")),
			newDataNode(newDataKey("chaincodeID1", "key2"), []byte("value2"))})

	// fetch all data nodes from db that belong to bucket 2 at lowest level
	dataNodesFromDB, _ = fetchDataNodesFromDBFor(newBucketKeyAtLowestLevel(2))
	testutil.AssertContainsAll(t, dataNodesFromDB,
		dataNodes{newDataNode(newDataKey("chaincodeID2", "key1"), []byte("value3"))})

	// fetch first bucket at second level
	bucketNodeFromDB, _ := fetchBucketNodeFromDB(newBucketKey(2, 1))
	testutil.AssertEquals(t, bucketNodeFromDB.bucketKey, newBucketKey(2, 1))
	//check childrenCryptoHash entries in the bucket node from DB
	testutil.AssertEquals(t, bucketNodeFromDB.childrenCryptoHash[0],
		testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID1", "key1"), []byte("value1"),
			statemgmt.ConstructCompositeKey("chaincodeID1", "key2"), []byte("value2")))

	testutil.AssertEquals(t, bucketNodeFromDB.childrenCryptoHash[1],
		testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key1"), []byte("value3")))

	testutil.AssertNil(t, bucketNodeFromDB.childrenCryptoHash[2])

	// third bucket at second level should be nil
	bucketNodeFromDB, _ = fetchBucketNodeFromDB(newBucketKey(2, 3))
	testutil.AssertNil(t, bucketNodeFromDB)
}
func TestStateImpl_ComputeHash_DB_2(t *testing.T) {
	// number of buckets at each level 26,13,7,4,2,1
	testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 2)
	testHasher.populate("chaincodeID1", "key1", 0)
	testHasher.populate("chaincodeID2", "key2", 1)
	testHasher.populate("chaincodeID3", "key3", 5)
	testHasher.populate("chaincodeID4", "key4", 9)
	testHasher.populate("chaincodeID5", "key5", 24)
	testHasher.populate("chaincodeID6", "key6", 25)

	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
	stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
	stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
	stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
	stateImplTestWrapper.prepareWorkingSet(stateDelta)
	// Populate DB
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()

	//////////// Test - constrcuting a new state tree simulates starting state tree when db already has some data ////////
	stateImplTestWrapper.constructNewStateImpl()
	rootHash := stateImplTestWrapper.computeCryptoHash()

	/*************************** bucket-tree-structure ***************
	1		1		1	1	1	1
	2		1		1	1	1	1
	6		3		2	1	1	1
	10	5		3	2	1	1
	25	13	7	4	2	1
	26	13	7	4	2	1
	*******************************************************************/
	expectedHashBucket5_1 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID1", "key1"), []byte("value1"))
	expectedHashBucket5_2 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"))
	expectedHashBucket5_6 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3"))
	expectedHashBucket5_10 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"))
	expectedHashBucket5_25 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"))
	expectedHashBucket5_26 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6"))
	expectedHashBucket4_1 := testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
	expectedHashBucket4_13 := testutil.ComputeCryptoHash(expectedHashBucket5_25, expectedHashBucket5_26)
	expectedHashBucket2_1 := testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket5_6)
	expectedHashBucket1_1 := testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
	expectedHash := testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket4_13)
	testutil.AssertEquals(t, rootHash, expectedHash)

	//////////////	Test - Add a few more keys (include keys in the existing buckes and new buckets) /////////////////////
	stateDelta = statemgmt.NewStateDelta()
	testHasher.populate("chaincodeID7", "key7", 1)
	testHasher.populate("chaincodeID8", "key8", 7)
	testHasher.populate("chaincodeID9", "key9", 9)
	testHasher.populate("chaincodeID10", "key10", 20)

	stateDelta.Set("chaincodeID7", "key7", []byte("value7"), nil)
	stateDelta.Set("chaincodeID8", "key8", []byte("value8"), nil)
	stateDelta.Set("chaincodeID9", "key9", []byte("value9"), nil)
	stateDelta.Set("chaincodeID10", "key10", []byte("value10"), nil)

	/*************************** bucket-tree-structure after adding keys ***************
	1		1		1	1	1	1
	2		1		1	1	1	1
	6		3		2	1	1	1
	8		4		2	1	1	1
	10	5		3	2	1	1
	21	11	6	3	2	1
	25	13	7	4	2	1
	26	13	7	4	2	1
	***********************************************************************************/
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
		statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7"))
	expectedHashBucket5_8 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID8", "key8"), []byte("value8"))
	expectedHashBucket5_10 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"),
		statemgmt.ConstructCompositeKey("chaincodeID9", "key9"), []byte("value9"))
	expectedHashBucket5_21 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID10", "key10"), []byte("value10"))
	expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
	expectedHashBucket3_2 := testutil.ComputeCryptoHash(expectedHashBucket5_6, expectedHashBucket5_8)
	expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)

	expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
	expectedHashBucket1_2 := testutil.ComputeCryptoHash(expectedHashBucket5_21, expectedHashBucket4_13)
	expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
	testutil.AssertEquals(t, rootHash, expectedHash)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()

	//////////////	Test - overwrite an existing key /////////////////////
	stateDelta = statemgmt.NewStateDelta()
	stateDelta.Set("chaincodeID7", "key7", []byte("value7_new"), nil)
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
		statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7_new"))
	expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
	expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)
	expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
	expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
	testutil.AssertEquals(t, rootHash, expectedHash)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID7", "key7"), []byte("value7_new"))

	//////////////	Test - delete an existing key /////////////////////
	stateDelta = statemgmt.NewStateDelta()
	stateDelta.Delete("chaincodeID2", "key2", nil)
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	expectedHashBucket5_2 = testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7_new"))
	expectedHashBucket4_1 = testutil.ComputeCryptoHash(expectedHashBucket5_1, expectedHashBucket5_2)
	expectedHashBucket2_1 = testutil.ComputeCryptoHash(expectedHashBucket4_1, expectedHashBucket3_2)
	expectedHashBucket1_1 = testutil.ComputeCryptoHash(expectedHashBucket2_1, expectedHashBucket5_10)
	expectedHash = testutil.ComputeCryptoHash(expectedHashBucket1_1, expectedHashBucket1_2)
	testutil.AssertEquals(t, rootHash, expectedHash)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
	testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID2", "key2"))
}
Example #10
0
func TestStateImpl_ComputeHash_DB_1(t *testing.T) {
	// number of buckets at each level 26,9,3,1
	testHasher, stateImplTestWrapper, stateDelta := createFreshDBAndInitTestStateImplWithCustomHasher(t, 26, 3)
	// populate hash fucntion such that
	// all keys belong to a single bucket so as to test overwrite/delete scenario
	testHasher.populate("chaincodeID1", "key1", 3)
	testHasher.populate("chaincodeID2", "key2", 3)
	testHasher.populate("chaincodeID3", "key3", 3)
	testHasher.populate("chaincodeID4", "key4", 3)
	testHasher.populate("chaincodeID5", "key5", 3)
	testHasher.populate("chaincodeID6", "key6", 3)
	testHasher.populate("chaincodeID7", "key7", 3)

	stateDelta.Set("chaincodeID2", "key2", []byte("value2"), nil)
	stateDelta.Set("chaincodeID3", "key3", []byte("value3"), nil)
	stateDelta.Set("chaincodeID5", "key5", []byte("value5"), nil)
	stateDelta.Set("chaincodeID6", "key6", []byte("value6"), nil)
	rootHash := stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()

	expectedHash1 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2"),
		statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3"),
		statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
		statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6"))
	testutil.AssertEquals(t, rootHash, expectedHash1)

	// modify boundary keys and a middle key
	stateDelta = statemgmt.NewStateDelta()
	stateDelta.Set("chaincodeID2", "key2", []byte("value2_new"), nil)
	stateDelta.Set("chaincodeID3", "key3", []byte("value3_new"), nil)
	stateDelta.Set("chaincodeID6", "key6", []byte("value6_new"), nil)
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
	expectedHash2 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2_new"),
		statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3_new"),
		statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
		statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6_new"))
	testutil.AssertEquals(t, rootHash, expectedHash2)
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID2", "key2"), []byte("value2_new"))
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID3", "key3"), []byte("value3_new"))
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID6", "key6"), []byte("value6_new"))

	// insert keys at boundary and in the middle
	stateDelta = statemgmt.NewStateDelta()
	stateDelta.Set("chaincodeID1", "key1", []byte("value1"), nil)
	stateDelta.Set("chaincodeID4", "key4", []byte("value4"), nil)
	stateDelta.Set("chaincodeID7", "key7", []byte("value7"), nil)
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
	expectedHash3 := testutil.ComputeCryptoHash(statemgmt.ConstructCompositeKey("chaincodeID1", "key1"), []byte("value1"),
		statemgmt.ConstructCompositeKey("chaincodeID2", "key2"), []byte("value2_new"),
		statemgmt.ConstructCompositeKey("chaincodeID3", "key3"), []byte("value3_new"),
		statemgmt.ConstructCompositeKey("chaincodeID4", "key4"), []byte("value4"),
		statemgmt.ConstructCompositeKey("chaincodeID5", "key5"), []byte("value5"),
		statemgmt.ConstructCompositeKey("chaincodeID6", "key6"), []byte("value6_new"),
		statemgmt.ConstructCompositeKey("chaincodeID7", "key7"), []byte("value7"))
	testutil.AssertEquals(t, rootHash, expectedHash3)
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID1", "key1"), []byte("value1"))
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID4", "key4"), []byte("value4"))
	testutil.AssertEquals(t, stateImplTestWrapper.get("chaincodeID7", "key7"), []byte("value7"))

	// delete keys at a boundary and in the middle
	stateDelta = statemgmt.NewStateDelta()
	stateDelta.Delete("chaincodeID1", "key1", nil)
	stateDelta.Delete("chaincodeID4", "key4", nil)
	stateDelta.Delete("chaincodeID7", "key7", nil)
	rootHash = stateImplTestWrapper.prepareWorkingSetAndComputeCryptoHash(stateDelta)
	stateImplTestWrapper.persistChangesAndResetInMemoryChanges()
	testutil.AssertEquals(t, rootHash, expectedHash2)
	testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID1", "key1"))
	testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID4", "key4"))
	testutil.AssertNil(t, stateImplTestWrapper.get("chaincodeID7", "key7"))
}