* [NOD-975] Don't include block transactions inside its UTXO commitment (#711)
* [NOD-975] Don't include block transactions inside its UTXO commitment.
* Revert "[NOD-975] Don't include block transactions inside its UTXO commitment."
This reverts commit b1a2ae66
* [NOD-975] Implement a (currently failing) TestUTXOCommitment.
* [NOD-975] Remove the block's own transactions from calcMultiset.
* [NOD-975] Simplify calcMultiset.
* [NOD-975] Add a comment on top of selectedParentMultiset.
* [NOD-975] Use pastUTXO instead of selectedParentUTXO in calcMultiset.
* [NOD-975] Use selected parent's pastUTXO instead of this block's pastUTXO in calcMultiset.
* [NOD-975] Extract selectedParentPastUTXO to a separate function.
* [NOD-975] Remove selectedParentUTXO from pastUTXO's return values.
* [NOD-975] Add txs to TestUTXOCommitment.
* [NOD-975] Remove debug code.
* [NOD-975] In pastUTXOMultiSet, copy the multiset to avoid modifying the original.
* [NOD-975] Add a test: TestPastUTXOMultiSet.
* [NOD-975] Improve TestPastUTXOMultiSet.
* [NOD-976] Implement tests for UTXO commitments (#715)
* [NOD-975] Don't include block transactions inside its UTXO commitment.
* Revert "[NOD-975] Don't include block transactions inside its UTXO commitment."
This reverts commit b1a2ae66
* [NOD-975] Implement a (currently failing) TestUTXOCommitment.
* [NOD-975] Remove the block's own transactions from calcMultiset.
* [NOD-975] Simplify calcMultiset.
* [NOD-975] Add a comment on top of selectedParentMultiset.
* [NOD-975] Use pastUTXO instead of selectedParentUTXO in calcMultiset.
* [NOD-975] Use selected parent's pastUTXO instead of this block's pastUTXO in calcMultiset.
* [NOD-975] Extract selectedParentPastUTXO to a separate function.
* [NOD-975] Remove selectedParentUTXO from pastUTXO's return values.
* [NOD-975] Add txs to TestUTXOCommitment.
* [NOD-976] Generate new blockDB blocks for tests.
* [NOD-976] Fix TestBlueBlockWindow.
* [NOD-976] Fix TestIsKnownBlock.
* [NOD-976] Fix TestGHOSTDAG.
* [NOD-976] Fix TestUTXOCommitment.
* [NOD-976] Remove kaka.
* [NOD-990] Save utxo diffs of past UTXO (#724)
* [NOD-990] Save UTXO diffs of past UTXO
* [NOD-990] Check for block double spends with its past instead of building its UTXO
* [NOD-990] Call resetExtraNonceForTest in TestUTXOCommitment
* [NOD-990] Remove redundant functions diffFromTx and diffFromAcceptedTx
* [NOD-990] Rename i->j to avoid confusion
* [NOD-990] Break long lines
* [NOD-990] Rename ErrDoubleSpendsWithBlockTransaction -> ErrDoubleSpendInSameBlock
* [NOD-990] Make ErrDoubleSpendInSameBlock more detailed
* [NOD-990] Add testProcessBlockRuleError
* [NOD-990] Fix comment
* [NOD-990] Add test for duplicate transactions on the same block
* [NOD-990] Use pkg/errors on panic
* [NOD-990] Make cloneWithoutBase method
* [NOD-990] Break long lines
* [NOD-990] Fix comment
* [NOD-990] Fix wrong variable names
* [NOD-990] Fix comment
* [NOD-974] Generate new test blocks.
* [NOD-974] Fix TestIsKnownBlock and TestGHOSTDAG.
* [NOD-974] Fix TestUTXOCommitment.
* [NOD-974] Fix comments
Co-authored-by: stasatdaglabs <39559713+stasatdaglabs@users.noreply.github.com>
Co-authored-by: stasatdaglabs <stas@daglabs.com>
Co-authored-by: Ori Newman <orinewman1@gmail.com>
* [NOD-855] Save ECMH for each block UTXO
* [NOD-855] Remove UpdateExtraNonce method
* [NOD-855] Remove multiset data from UTXO diffs
* [NOD-855] Fix to fetch multiset of selected parent
* [NOD-855] Don't remove coinbase inputs from multiset
* [NOD-855] Create multisetBucketName on startup
* [NOD-855] Remove multiset from UTXO diff tests
* [NOD-855] clear new entries from multisetstore on saveChangesFromBlock
* [NOD-855] Fix tests
* [NOD-855] Use UnacceptedBlueScore when adding current block transactions to multiset
* [NOD-855] Hash utxo before adding it to multiset
* [NOD-855] Pass isCoinbase to NewUTXOEntry
* [NOD-855] Do not use hash when adding entries to multiset
* [NOD-855] When calculating multiset, replace the unaccepted blue score of selected parent transaction with the block blue score
* [NOD-855] Manually add a chained transaction to a block in TestChainedTransactions
* [NOD-855] Change name and comments
* [NOD-855] Use FindAcceptanceData to find a specific block acceptance data
* [NOD-855] Remove redundant copy of txIn.PreviousOutpoint
* [NOD-855] Use fmt.Sprintf when creating internalRPCError
* [NOD-848] Optimize allocations when serializing UTXO diffs
* [NOD-848] Use same UTXO serialization everywhere, and use compression as well
* [NOD-848] Fix usage of wrong buffer
* [NOD-848] Fix tests
* [NOD-848] Fix wire tests
* [NOD-848] Fix tests
* [NOD-848] Remove VLQ
* [NOD-848] Fix comments
* [NOD-848] Add varint for big endian encoding
* [NOD-848] In TestVarIntWire, assume the expected decoded value is the same as the serialization input
* [NOD-848] Serialize outpoint index with big endian varint
* [NOD-848] Remove p2pk from compression support
* [NOD-848] Fix comments
* [NOD-848] Remove p2pk from decompression support
* [NOD-848] Make entry compression optional
* [NOD-848] Fix tests
* [NOD-848] Fix comments and var names
* [NOD-848] Remove UTXO compression
* [NOD-848] Fix tests
* [NOD-848] Remove big endian varint
* [NOD-848] Fix comments
* [NOD-848] Rename ReadVarIntLittleEndian->ReadVarInt and fix WriteVarInt comment
* [NOD-848] Add outpointIndexByteOrder variable
* [NOD-848] Remove redundant comment
* [NOD-848] Fix outpointMaxSerializeSize to the correct value
* [NOD-848] Move subBuffer to utils
* [NOD-778] Add WithDiffInPlace
* [NOD-778] Fix bug in WithDiffInPlace
* [NOD-778] Add comment to WithDiffInPlace
* [NOD-778] Add double dag.restoreUTXO to benchmark, to remove time for hard-disk loading
* [NOD-778] Also test WithDiffInPlace in TestUTXODiffRules
* [NOD-778] Add tests for all cases possible in TestUTXODiffRules
* [NOD-778] Fix test-case 'first in toAdd in this, second in toRemove in this and toAdd in other'
* [NOD-778] Fixed in WithDiffInPlace
* [NOD-778] Update error messages when diffFrom(withDiffResult) fails in TestUTXODiffRules
* [NOD-778] diffFrom: disallow utxos both in d.toAdd, other.toAdd, and only one of d.toRemove and other.toRemove
* [NOD-778] Fix expected value in 'first in toRemove in this, second in toRemove in other'
* [NOD-778] diffFrom: Disallow situations where utxo both in d.toRemove and other.toRemove with different blue scores and no corresponding utxo in d.toAdd
* [NOD-778] WithDiff: Fix faulty logic that allows updates to blue scores
* [NOD-778] Fix WithDiffInPlace to pass all tests
* [NOD-778] Deleted temporary prints
* [NOD-778] Sorted TestUTXODiffRules tests according to spreadsheet
* [NOD-778] Delete deeputxo_test.go
* [NOD-778] Updated comments
* [NOD-778] Re-order
* [NOD-778] Re-order test-cases to be according to spreadsheet
* [NOD-778] Simplified case when both d.toRemove and other.toRemove have the same outpoint in diffFrom
* [NOD-778] Change a few error messages that say 'transaction' instead of 'outpoint'
* [NOD-778] Rename: utxoToAdd/Remove -> entryToAdd/Remove
* [NOD-788] Remove redundant else
* [NOD-778] Rename: existingUTXO -> existingEntry + remove redundant else
* [NOD-778] Correct test name
* [NOD-222] Added constant: UnacceptedBlueScore.
* [NOD-222] Made it so that block transactions always have UnacceptedBlueScore.
* [NOD-222] Implemented updating unaccepted UTXO entries with accepted ones in the virtual.
* [NOD-222] Fixed an unclear comment.
* [NOD-222] Fixed diffFromAcceptanceData not receiving the right blue score.
* [NOD-222] Fixed various issues with the implementation. It appears to work now.
* [NOD-222] Removed debug logs.
* [NOD-222] Fixed tests that relied on utxoCollection.String().
* [NOD-222] Fixed TestChainedTransactions.
* [NOD-222] Fixed tests that relied on GetVirtualFromParentsForTest.
* [NOD-222] Fixed having identical entries in toAdd and toRemove.
* [NOD-222] Fixed logic in diffFrom that I previously broke.
* [NOD-222] Fixed a wrong check.
* [NOD-222] Figured out the magical invocation to make everything work.
* [NOD-222] Fixed blockDB tests.
* [NOD-222] Removed debug method.
* [NOD-222] Fixed comments related to setting coinbase maturity to 0.
* [NOD-222] Fixed a typo in a comment.
* [NOD-222] Added a comment that explains the new addition in GetVirtualFromParentsForTest.
* [NOD-222] Added a comment to DiffUTXOSet.Get().
* [NOD-222] Fixed a nuance in DiffUTXOSet.containsInputs.
* [NOD-222] Replaced nonsense in GetVirtualFromParentsForTest with diffFromAcceptanceData.
* [NOD-222] Renamed newVirtualUTXO -> newVirtualPastUTXO.
* [NOD-222] Fixed a comment.
* [NOD-222] Extracted checking utxoCollection with blueScore to a method.
* [NOD-222] Added tests where the same entry is in both toAdd and toRemove.
* [NOD-222] Used Add/RemoveEntry inside diffFromAcceptedTx.
* [NOD-222] Removed superfluous test for UnacceptedBlueScore.
* [NOD-222] Added/Updated comments.
* [NOD-222] Added tests to TestUTXODiffRules.
* [NOD-222] Added appropriate protection against impossible "from"s in diffFrom.
* [NOD-222] Added a comment explaining why we diffFrom acceptanceData in verifyAndBuildUTXO.
* [NOD-222] Fixed comments and equal() in utxoset.
* [NOD-208] Added blockBlueScore to UTXOEntry.
* [NOD-208] Added blueBlockScore to NewUTXOEntry.
* [NOD-208] Fixed compilation errors in policy, utxoset, and dag tests.
* [NOD-208] Changed validateBlockRewardMaturity and CheckTransactionInputsAndCalulateFee to use blueScore.
* [NOD-208] Changed CalcBlockSubsidy to use blueScore.
* [NOD-208] Changed SequenceLockActive to use blueScore.
* [NOD-208] Removed ExtractCoinbaseHeight.
* [NOD-208] Removed reference to block height in ensureNoDuplicateTx.
* [NOD-208] Changed IsFinalizedTransaction to use blueScore.
* [NOD-208] Fixed merge errors.
* [NOD-208] Made UTXOEntry serialization use blueScore.
* [NOD-208] Changed CalcPriority and calcInputValueAge to use blueScore.
* [NOD-208] Changed calcSequenceLock to use blueScore.
* [NOD-208] Removed blockChainHeight from UTXOEntry.
* [NOD-208] Fixed compilation errors in feeEstimator. Fixed a bug in the test pool hardness.
* [NOD-208] Fixed oldestChainBlockWithBlueScoreGreaterThan not handling an extreme case.
* [NOD-208] Fixed TestDiffFromTx.
* [NOD-208] Got rid of priority and support of free transactions.
* [NOD-208] Fixed TestProcessTransaction.
* [NOD-208] Fixed TestTxFeePrioHeap.
* [NOD-208] Fixed TestAddrIndex and TestFeeEstimatorCfg.
* [NOD-208] Removed unused rateLimit parameter from ProcessTransaction.
* [NOD-208] Fixed tests that rely on CreateTxChain.
* [NOD-208] Fixed tests that rely on CreateSignedTxForSubnetwork.
* [NOD-208] Fixed TestFetchTransaction.
* [NOD-208] Fixed TestHandleNewBlock. Fixed HandleNewBlock erroneously processing fee transactions.
* [NOD-208] Fixed TestTxIndexConnectBlock.
* [NOD-208] Removed the use of Height() from the fee estimator.
* [NOD-208] Removed unused methods from rpcwebsocket.go.
* [NOD-208] Removed Height from util.Block.
* [NOD-208] Removed ErrForkTooOld. It doesn't make sense in a DAG.
* [NOD-208] Made blockHeap use blueScore instead of height.
* [NOD-208] Removed fee estimator.
* [NOD-208] Removed DAG.Height.
* [NOD-208] Made TestAncestorErrors test chainHeight instead of height.
* [NOD-208] Fixed a couple of comments that were still speaking about block height.
* [NOD-208] Replaced all uses of HighestTipHash with SelectedTipHash.
* [NOD-208] Remove blockNode highest and some remaining erroneous uses of height.
* [NOD-208] Fixed a couple of comments. Fixed outPoint -> outpoint merge error.
* [NOD-208] Fixed a couple more comments.
* [NOD-208] Used calcMinRequiredTxRelayFee instead of DefaultMinRelayTxFee for mempool tests.
* [NOD-208] Renamed mempool Config BestHeight to DAGChainHeight.
* [NOD-208] Fixed a bug in oldestChainBlockWithBlueScoreGreaterThan. Made calcSequenceLock use the node's selected parent chain rather than the virtual block's.
* [NOD-208] Removed chainHeight from blockNode String().
Renamed checkpointsByHeight to checkpointsByChainHeight and prevCheckpointHeight to prevCheckpointChainHeight.
Removed reference to chainHeight in blockIndexKey.
Fixed comments in dagio.go.
* [NOD-208] Removed indexers/blocklogger.go, as no one was using it.
* [NOD-208] Made blocklogger.go log blueScore instead of height.
* [NOD-208] Fixed typo.
* [NOD-208] Fixed comments, did minor renaming.
* [NOD-208] Made a "common sense" wrapper around sort.Search.
* [NOD-208] Fixed comment in SearchSlice.
* [NOD-172] Port EMCH from bchd
* [NOD-172] Fix hdkeychain.TestErrors and add btcec.TestRecoverCompact
* [NOD-172] Make ECMH immutable
* [NOD-172] Fix gofmt errors
* [NOD-172] Add TestMultiset_NewMultisetFromDataSlice and fix Point to be immutable
* [NOD-172] Fix gofmt errors
* [NOD-172] Add test for checking that the Union of a multiset and its inverse is zero
* [NOD-179] Add ECMH Point to all UTXO-structs
* [NOD-179] Fix utxo set tests
* [NOD-179] Fix mempool tests
* [NOD-179] Remove RemoveTxOuts
* [NOD-179] Move serializeBlockUTXODiffData to the top of the file
* [NOD-179] Fix serializeBlockUTXODiffData comment format
* [NOD-179] Fix AddTx comment and name return values
* [NOD-96] Convert txid to pointer where possible
* [NOD-96] Make msgTx.TxID return a pointer
* [NOD-96] observedTransaction.id -> observedTransaction.txID
* [NOD-142] Updated util.FastLog2Floor to work on uint64
* [NOD-142] Convert height and chainHeight to uint64
* [NOD-142] A couple fixes in comments of TestFastLog2Floor
* [NOD-142] Make spendableOutOffset uint64 too
* [NOD-48] Update wire.NewMsgTx to recieve all fields in msgTx
* [NOD-48] Fix all compilation errors resulting from modification of wire.NewMsgTx
* [NOD-48] Calculate payloadHash iff subnetworkID is not native
* [NOD-48] Update all places the instantiate wire.MsgTx to use wire.NewMsgTx
* [NOD-48] Remove 'wire.' calls inside wire package
* [NOD-48] Made newMsgTx with all parameters private, and added a few public functions that take various arguments for all common use-cases
* [NOD-48] Explicitly pass SubnetworkIDNative instead of nil to newMsgTx
* [NOD-48] Remove option to pass nil to newMsgTx
* [DEV-364] Add fee transactions validation
* [DEV-364] make NextBlockFeeTransactions for creating block templates
* [DEV-364] apply coinbase rules to fee transaction is some cases
* [DEV-364] Add comments
* [DEV-364] put getTXO as separate function
* [DEV-364] Make getParentsFeeData a separate function
* [DEV-364] fix calculateFees
* [DEV-364] force maximum sequence for fee transactions
* [DEV-364] add TestValidateFeeTransactions
* [DEV-364] change fee transaction to be one tx per block rather than one tx for each blue
* [DEV-364] fix tests
* [DEV-364] Use constants instead of inline numbers
* [DEV-92] Covered blocknode.go with tests.
* [DEV-92] Added test for blockSet.highest. Fixed a bug in it.
* [DEV-92] Added tests for blockSet.subtract and blockSet.addSet.
* [DEV-92] Covered blockset.go with tests.
* [DEV-92] Got rid of some old stuff related to STXOs.
* [DEV-92] Covered error.go with tests.
* [DEV-92] Covered utxoSet with tests.
* [DEV-92] Fixed formatting.
* [DEV-361] Create type TxID as alias to daghash.Hash. Use it for transaction IDs
* [DEV-361] Fixed missed renames
* [DEV-361] Removed usage of zeroHash
* [DEV-361] Fixed more missed renames
* [DEV-348] Removed a couple of unused methods.
* [DEV-348] Implemented validating incoming transactions for bad partial transactions.
* [DEV-348] Added a (incomplete) filter for propogation of transactions.
* [DEV-348] Implemented filtering inventory by subnetwork.
* [DEV-348] Fixed broken tests.
* [DEV-348] Added test for non-zero payload partial transactions.
* [DEV-348] Added a comment for Config.SubnetworkID.
* [DEV-348] Fixed formatting.
* [DEV-348] Renamed isRemoteTransactionFull to shouldTxBeFull.
* [DEV-348] Added a check for invalid transaction in maybeAcceptTransaction. Added handling for native networks.
* [DEV-348] Fixed formatting.
* [DEV-348] Fixed a bug in transaction validation.
* [DEV-348] Rephrased a comment.
* [DEV-348] Extracted subnetwork compatibility to a method. Wrote a test for it.
* [DEV-348] Removed an unnecessary check over the native subnetwork.
* [DEV-312] Take in account subnetwork's GAS limit, when adding
transactions to block. Try to do that optimally.
* [DEV-312] Fixed GAS overusage calculation
* [DEV-337] Make sure that a transaction that uses more gas than the total allowed for sub-network
* [DEV-337] Moved transaction GAS check to mempool
* [DEV-337] Added Unit test for gas usage in transaction
* [DEV-337] Fixed build
* [DEV-337] Fixed tests stuff
* [DEV-337] Removed TODO comment
* [DEV-303] Implement block finality
* [DEV-303] Add finality tests
* [DEV-303] Make finality tests use maybeAcceptBlock
* [DEV-303] Only check finality rules if we are fastAdd mode
* [DEV-303] replace hasBiggerFinalityScoreThan checks with .finalityScore()
* [DEV-234] add TxAcceptedInBlock and TxBlocks
* [DEV-234] test TxAcceptedInBlock and TxBlocks
* [DEV-234] test TxAcceptedInBlock and TxFirstBlockRegion
* [DEV-234] rename selectedPathSet to selectedPathChain
* [DEV-234] set indexers db as part of index manager initialization
* [DEV-234] remove redudant dag instance in txindex
* [DEV-234] fix TestTxIndexConnectBlock and add DAGParams as part of config in DAGSetup
* [DEV-234] TestTxIndexConnectBlock make K=1 to make calculations easier
* [DEV-234] rename TxAcceptingBlock to BlockThatAcceptedTx
* [DEV-234] update block fields names in txindex_test.go
* [DEV-234] rename selectedPathChain -> selectedPathChainSet
* [DEV-255] create checkConnectToPastUTXO and move the required functionalities to it from checkConnectBlock
* [DEV-255] get rid of checkConnectBlock
* [DEV-255] rename pNode -> node
* [DEV-255] add comment to describe ErrWithDiff
* [DEV-91] add TestAddrIndex
* [DEV-91] add TestFeeEstimator
* [DEV-91] rename TestFeeEstimator -> TestFeeEstimatorCfg
* [DEV-91] added TestCount
* [DEV-91] add TestExtractRejectCode in mempool_test.go
* [DEV-91] get rid of fakeErr type and defer unpatching monkey patch
* [DEV-91] use the result of monkey.patch to unpatch
* [DEV-222] Changed type of TxOut.Value and util.Amount to uin64
* [DEV-222] Replaced math.MaxUint64 with 0
* [DEV-222] Fixed comment to reflect uint64 instead of int64
* [DEV-222] Fixed overflow comment
* [DEV-201] In handleGetBlockDAGInfo calculate difficulty by the tip with the lowest bits
* [DEV-202] Move VirtualBlock.GetUTXOEntry to BlockDAG
* [DEV-203] Move VirtualBlock.SelectedTip() to BlockDAG
* [DEV-203] Move VirtualBlock.SelectedTip() to BlockDAG
* [DEV-204] Unexport VirtualBlock() and add CalcMedianTime method for DAG
* [DEV-204] add explanation about difficulty in CurrentBits() comment
* [DEV-204] unexport VirtualBlock type
* [DEV-223] make applyUTXOChanges return pastUTXOResults
* [DEV-223] add bluestxdata for current block as well
* [DEV-223] re-design tx index
* [DEV-223] edit txindex comments
* [DEV-223] rename BluesTxData -> AcceptedTxData, and return from applyUTXOChanges only transactions that got accepted
* [DEV-223] add unit test for txindex
* [DEV-223] fix comments and unite blueTransaction and AcceptedTxData to one type
* [DEV-223] use bucket cursor for dbFetchFirstTxRegion
* [DEV-223] use the same cursor instance for dbFetchFirstTxRegion
* [DEV-223] write in dbFetchFirstTxRegion's comment that it returns the first block region
* [DEV-223] rename type BlueBlockTransaction to TxWithBlockHash
* [DEV-223] add named returned value for applyUTXOChanges
* [DEV-105] use utxodiff in mempool instead of utxoview
* [DEV-105] get rid of utxoview
* [DEV-105] fix tests to use utxoset
* [DEV-105] remove utxoview type
* [DEV-105] move DagSetup to test_utils.go
* [DEV-105] add comments and add blockdag/test_utils_test.go
* [DEV-105] add restoreInputs arg to removeTransaction
* [DEV-105] give more descriptive names to vars
* [DEV-115] close txChan outside of HandleNewBlock
* [DEV-105] rename DagSetup -> DAGSetup
* [DEV-75] Removed fetchEntryByHash, which was no longer used.
* [DEV-75] Removed a few functions in manager.go that weren't used by anything.
* [DEV-75] checkConnectBlock will soon not accept a utxoViewpoint, so removed the call to view.Tip() so that it could be deleted.
* [DEV-75] Got rid of tips in UtxoViewpoint.
* [DEV-75] Added the full UTXO set to the virtual block.
* [DEV-75] Implemented UTXO-wrangling when adding a new block.
* [DEV-75] Added isCoinbase to utxoEntry creation.
* [DEV-75] Added blockHeight to utxoEntry creation.
* Implemented fetching the fullUTXOSet from the database.
* [DEV-75] Simplified DAGState because almost all of the state in it was unnecessary. Also got rid of dbDAGState.
* [DEV-75] Made the process around adding a new block, UTXO-wise, much safer.
* [DEV-75] Implemented melding the virtual UTXO diff to the database.
* [DEV-75] Fixed utxoSet loading from the wrong bucket.
* [DEV-75] Began pruning utxoviewpoint.go. Replaced FetchUtxoEntry with a fullUTXOSet-based GetUTXOEntry.
* [DEV-75] Removed fetchUtxos.
* [DEV-75] Moved GetUTXOEntry into the virtual block.
* [DEV-75] Updated IndexManager to not use utxoViewpoints.
* [DEV-75] Fixed some bad login in restoreUTXO involving nodeDiffs.
* [DEV-75] Got rid of the UTXO spend journal, which wasn't used anywhere.
* [DEV-75] Moved some STXO-related validation logic out of connectToDAG and into checkConnectBlock.
* [DEV-75] Renamed UtxoXxx to UTXOXxx. Removed a bunch of methods that were no longer used by anything.
* [DEV-75] Another Utxo -> UTXO rename.
* [DEV-75] Removed IsModified from UTXOView, which was not used anywhere.
* [DEV-75] Renamed nodeDiff to provisionalNode. Added a bunch of comments.
* [DEV-75] Removed the test for genesis in pastUTXO, since it can never happen.
* [DEV-75] Wrote tests for errors in pastUTXO.
* [DEV-75] Wrote tests for errors in restoreUTXO.
* [DEV-75] Improved testErrorThroughPatching.
* [DEV-75] Wrote tests for errors in verifyAndBuildUTXO.
* [DEV-75] Used TipHashes instead of tips().hashes(), fixed comments in a few places, and brought back an error return that I erroneously removed.
* [DEV-75] Removed UTXO set logs.
* [DEV-75] Recreated add/remove/contains functions for utxoCollection.
* [DEV-75] Changed newUTXOEntry to use an object initializer.
* [DEV-75] Changed the UTXO bucket version to 1.
* Added a comment that clarifies that the index is not initialized before initDAGState is called.
* [DEV-75] Renamed GetVirtualBlock to VirtualBlock.
* [DEV-75] Removed superfluous variables.
* [DEV-75] Combined connectBlockToParents with updateParentsDiffs.
* [DEV-75] Removed another superfluous variable.
* [DEV-75] In pastUTXO, first fetch transactions from the database and only then add them.
* [DEV-75] Reworded the comment for commit().
* [DEV-75] Made all the connectUTXO subfunctions not BlockDAG methods.
* [DEV-75] Updated the comment for connectUTXO.
* [DEV-75] Updated the comment explaining why we're creating provisionalNodes.
* [DEV-75] Removed a couple of unnecessary calls to toProvisionalNode.
* [DEV-75] Renamed connectUTXO to applyUTXOChanges.
* [DEV-75] Replaced allProvisionalNodes with provisionalNodeSet, an object that holds provisionalNodes for this particular call to applyUTXOChanges.
* [DEV-75] Changed createProvisionalNode to accept a boolean "withParents" instead of relying on the caller to supply the node's parents or an empty set.
* [DEV-75] Made most applyUTXOChanges subfunctions be methods on provisionalNode.
* [DEV-75] Fixed a couple of bad comments.
* [DEV-75] Added descriptive error messages to callers of applyUTXOChanges.
* [DEV-75] Fixed weird English.
* [DEV-75] Replaced DAGState with a slice of DAG tip hashes.
* [DEV-75] In createProvisionalNode, changed withParents to withRelatives to avoid certain kinds of attacks.
* [DEV-75] Renamed createdProvisionalNode to newProvisionalNode.
* [DEV-75] Added precalculating the amount of transactions inside a new block's blue set.
* [DEV-75] Pruned unnecessary variable.
* [DEV-74] Implemented and written tests for utxoIterator.
* [DEV-74] Improved utxoIterator tests.
* [DEV-74] Implemented utxoCollection tests.
* [DEV-74] Implemented utxoDiff and its tests.
* [DEV-74] Implemented utxoSet.
* [DEV -74] Added tests for fullUTXOSet.
* [DEV-74] Added some tests for diffUTXOSet.
* [DEV-74] Wrote tests for diffUTXOSet iterator.
* [DEV-74] Added a negative test for diffUTXOSet.withDiff.
* [DEV-74] Wrote tests for addTx.
* [DEV-74] Wrote a toRemove test for addTx.
* [DEV-74] Changed blockNode.utxoDiff to be of type utxoDiff.
* [DEV-74] Removed superfluous whitespace.
* [DEV-74] Renamed confusing "previousHash" to "hash".
* [DEV-74] Fixed bad test and corrected failing test.
* [DEV-74] Moved confusing "negatives" test to be part of the general utxoCollection test.
* [DEV-74] Removed utxoDiff.inverted.
* [DEV-74] Renamed blockNode.utxoDiff to blockNode.diff.
* [DEV-74] Renamed diff to diffFrom for clarity's sake.
* [DEV-74] Converted the type of utxoCollection from map[daghash.Hash]map[uint32]*wire.TxOut to map[wire.OutPoint]*UtxoEntry.
* [DEV-74] Corrected test names in utxoCollection_test.
* [DEV-74] Removed superfluous utxoCollection iterator and moved utxoIterator into utxoset.go.
* [DEV-74] Renamed variables in utxoset.go.
* [DEV-74] Renamed verifyTx to areInputsInUTXO and removed a superfulous test.
* [DEV-74] Fixed bad test logic in TestDiffUTXOSet_addTx.
* [DEV-74] Added a few comments. Added reference-equals checks to clone functions.
* [DEV-74] Moved utxoCollection and utxoDiff into utxoset.go.
* [DEV-74] Wrote explanations for utxoCollection and utxoDiff tests.
* [DEV-74] Wrote explanations for all utxoSet tests besides addTx.
* [DEV-74] Wrote explanations for TestDiffUTXOSet_addTx.
* [DEV-74] Moved the documentation for utxoDiff into utxoset.go.
* [DEV-74] Wrote an explanation on utxoSet.
* [DEV-74] Moved diffChild next to diff, improved their comments, moved the explanations for diffFrom and withDiff to the appropriate methods, got rid of utxoIterator, and renamed areInputsInUTXO to containsInputs.
* [DEV-74] Replaced boring old-fashioned reference equality with special, fancy reference equality for maps, slices, and channels.
* [DEV-74] Wrote additional explanations for test cases.
