core: split out TD from database and all internals
This commit is contained in:
Péter Szilágyi
@ -23,6 +23,10 @@ import (
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/crypto/sha3"
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"github.com/ethereum/go-ethereum/ethdb"
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"github.com/ethereum/go-ethereum/rlp"
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)
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type diffTest struct {
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@ -75,3 +79,242 @@ func TestDifficulty(t *testing.T) {
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}
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}
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}
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// Tests block header storage and retrieval operations.
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func TestHeaderStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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// Create a test header to move around the database and make sure it's really new
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header := &types.Header{Extra: []byte("test header")}
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if entry := GetHeader(db, header.Hash()); entry != nil {
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t.Fatalf("Non existent header returned: %v", entry)
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}
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// Write and verify the header in the database
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if err := WriteHeader(db, header); err != nil {
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t.Fatalf("Failed to write header into database: %v", err)
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}
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if entry := GetHeader(db, header.Hash()); entry == nil {
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t.Fatalf("Stored header not found")
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} else if entry.Hash() != header.Hash() {
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t.Fatalf("Retrieved header mismatch: have %v, want %v", entry, header)
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}
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if entry := GetHeaderRLP(db, header.Hash()); entry == nil {
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t.Fatalf("Stored header RLP not found")
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} else {
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hasher := sha3.NewKeccak256()
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hasher.Write(entry)
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if hash := common.BytesToHash(hasher.Sum(nil)); hash != header.Hash() {
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t.Fatalf("Retrieved RLP header mismatch: have %v, want %v", entry, header)
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}
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}
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// Delete the header and verify the execution
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DeleteHeader(db, header.Hash())
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if entry := GetHeader(db, header.Hash()); entry != nil {
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t.Fatalf("Deleted header returned: %v", entry)
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}
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}
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// Tests block body storage and retrieval operations.
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func TestBodyStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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// Create a test body to move around the database and make sure it's really new
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body := &types.Body{Uncles: []*types.Header{{Extra: []byte("test header")}}}
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hasher := sha3.NewKeccak256()
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rlp.Encode(hasher, body)
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hash := common.BytesToHash(hasher.Sum(nil))
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if entry := GetBody(db, hash); entry != nil {
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t.Fatalf("Non existent body returned: %v", entry)
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}
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// Write and verify the body in the database
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if err := WriteBody(db, hash, body); err != nil {
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t.Fatalf("Failed to write body into database: %v", err)
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}
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if entry := GetBody(db, hash); entry == nil {
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t.Fatalf("Stored body not found")
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} else if types.DeriveSha(types.Transactions(entry.Transactions)) != types.DeriveSha(types.Transactions(body.Transactions)) || types.CalcUncleHash(entry.Uncles) != types.CalcUncleHash(body.Uncles) {
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t.Fatalf("Retrieved body mismatch: have %v, want %v", entry, body)
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}
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if entry := GetBodyRLP(db, hash); entry == nil {
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t.Fatalf("Stored body RLP not found")
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} else {
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hasher := sha3.NewKeccak256()
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hasher.Write(entry)
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if calc := common.BytesToHash(hasher.Sum(nil)); calc != hash {
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t.Fatalf("Retrieved RLP body mismatch: have %v, want %v", entry, body)
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}
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}
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// Delete the body and verify the execution
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DeleteBody(db, hash)
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if entry := GetBody(db, hash); entry != nil {
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t.Fatalf("Deleted body returned: %v", entry)
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}
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}
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// Tests block storage and retrieval operations.
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func TestBlockStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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// Create a test block to move around the database and make sure it's really new
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block := types.NewBlockWithHeader(&types.Header{Extra: []byte("test block")})
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if entry := GetBlock(db, block.Hash()); entry != nil {
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t.Fatalf("Non existent block returned: %v", entry)
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}
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if entry := GetHeader(db, block.Hash()); entry != nil {
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t.Fatalf("Non existent header returned: %v", entry)
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}
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if entry := GetBody(db, block.Hash()); entry != nil {
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t.Fatalf("Non existent body returned: %v", entry)
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}
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// Write and verify the block in the database
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if err := WriteBlock(db, block); err != nil {
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t.Fatalf("Failed to write block into database: %v", err)
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}
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if entry := GetBlock(db, block.Hash()); entry == nil {
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t.Fatalf("Stored block not found")
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} else if entry.Hash() != block.Hash() {
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t.Fatalf("Retrieved block mismatch: have %v, want %v", entry, block)
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}
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if entry := GetHeader(db, block.Hash()); entry == nil {
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t.Fatalf("Stored header not found")
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} else if entry.Hash() != block.Header().Hash() {
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t.Fatalf("Retrieved header mismatch: have %v, want %v", entry, block.Header())
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}
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if entry := GetBody(db, block.Hash()); entry == nil {
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t.Fatalf("Stored body not found")
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} else if types.DeriveSha(types.Transactions(entry.Transactions)) != types.DeriveSha(block.Transactions()) || types.CalcUncleHash(entry.Uncles) != types.CalcUncleHash(block.Uncles()) {
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t.Fatalf("Retrieved body mismatch: have %v, want %v", entry, &types.Body{block.Transactions(), block.Uncles()})
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}
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// Delete the block and verify the execution
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DeleteBlock(db, block.Hash())
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if entry := GetBlock(db, block.Hash()); entry != nil {
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t.Fatalf("Deleted block returned: %v", entry)
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}
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if entry := GetHeader(db, block.Hash()); entry != nil {
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t.Fatalf("Deleted header returned: %v", entry)
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}
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if entry := GetBody(db, block.Hash()); entry != nil {
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t.Fatalf("Deleted body returned: %v", entry)
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}
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}
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// Tests that partial block contents don't get reassembled into full blocks.
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func TestPartialBlockStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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block := types.NewBlockWithHeader(&types.Header{Extra: []byte("test block")})
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// Store a header and check that it's not recognized as a block
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if err := WriteHeader(db, block.Header()); err != nil {
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t.Fatalf("Failed to write header into database: %v", err)
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}
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if entry := GetBlock(db, block.Hash()); entry != nil {
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t.Fatalf("Non existent block returned: %v", entry)
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}
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DeleteHeader(db, block.Hash())
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// Store a body and check that it's not recognized as a block
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if err := WriteBody(db, block.Hash(), &types.Body{block.Transactions(), block.Uncles()}); err != nil {
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t.Fatalf("Failed to write body into database: %v", err)
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}
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if entry := GetBlock(db, block.Hash()); entry != nil {
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t.Fatalf("Non existent block returned: %v", entry)
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}
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DeleteBody(db, block.Hash())
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// Store a header and a body separately and check reassembly
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if err := WriteHeader(db, block.Header()); err != nil {
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t.Fatalf("Failed to write header into database: %v", err)
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}
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if err := WriteBody(db, block.Hash(), &types.Body{block.Transactions(), block.Uncles()}); err != nil {
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t.Fatalf("Failed to write body into database: %v", err)
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}
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if entry := GetBlock(db, block.Hash()); entry == nil {
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t.Fatalf("Stored block not found")
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} else if entry.Hash() != block.Hash() {
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t.Fatalf("Retrieved block mismatch: have %v, want %v", entry, block)
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}
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}
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// Tests block total difficulty storage and retrieval operations.
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func TestTdStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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// Create a test TD to move around the database and make sure it's really new
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hash, td := common.Hash{}, big.NewInt(314)
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if entry := GetTd(db, hash); entry != nil {
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t.Fatalf("Non existent TD returned: %v", entry)
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}
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// Write and verify the TD in the database
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if err := WriteTd(db, hash, td); err != nil {
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t.Fatalf("Failed to write TD into database: %v", err)
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}
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if entry := GetTd(db, hash); entry == nil {
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t.Fatalf("Stored TD not found")
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} else if entry.Cmp(td) != 0 {
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t.Fatalf("Retrieved TD mismatch: have %v, want %v", entry, td)
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}
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// Delete the TD and verify the execution
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DeleteTd(db, hash)
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if entry := GetTd(db, hash); entry != nil {
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t.Fatalf("Deleted TD returned: %v", entry)
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}
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}
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// Tests that canonical numbers can be mapped to hashes and retrieved.
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func TestCanonicalMappingStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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// Create a test canonical number and assinged hash to move around
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hash, number := common.Hash{0: 0xff}, uint64(314)
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if entry := GetCanonicalHash(db, number); entry != (common.Hash{}) {
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t.Fatalf("Non existent canonical mapping returned: %v", entry)
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}
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// Write and verify the TD in the database
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if err := WriteCanonicalHash(db, hash, number); err != nil {
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t.Fatalf("Failed to write canonical mapping into database: %v", err)
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}
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if entry := GetCanonicalHash(db, number); entry == (common.Hash{}) {
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t.Fatalf("Stored canonical mapping not found")
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} else if entry != hash {
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t.Fatalf("Retrieved canonical mapping mismatch: have %v, want %v", entry, hash)
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}
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// Delete the TD and verify the execution
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DeleteCanonicalHash(db, number)
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if entry := GetCanonicalHash(db, number); entry != (common.Hash{}) {
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t.Fatalf("Deleted canonical mapping returned: %v", entry)
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}
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}
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// Tests that head headers and head blocks can be assigned, individually.
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func TestHeadStorage(t *testing.T) {
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db, _ := ethdb.NewMemDatabase()
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blockHead := types.NewBlockWithHeader(&types.Header{Extra: []byte("test block header")})
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blockFull := types.NewBlockWithHeader(&types.Header{Extra: []byte("test block full")})
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// Check that no head entries are in a pristine database
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if entry := GetHeadHeaderHash(db); entry != (common.Hash{}) {
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t.Fatalf("Non head header entry returned: %v", entry)
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}
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if entry := GetHeadBlockHash(db); entry != (common.Hash{}) {
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t.Fatalf("Non head block entry returned: %v", entry)
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}
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// Assign separate entries for the head header and block
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if err := WriteHeadHeaderHash(db, blockHead.Hash()); err != nil {
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t.Fatalf("Failed to write head header hash: %v", err)
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}
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if err := WriteHeadBlockHash(db, blockFull.Hash()); err != nil {
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t.Fatalf("Failed to write head block hash: %v", err)
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}
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// Check that both heads are present, and different (i.e. two heads maintained)
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if entry := GetHeadHeaderHash(db); entry != blockHead.Hash() {
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t.Fatalf("Head header hash mismatch: have %v, want %v", entry, blockHead.Hash())
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}
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if entry := GetHeadBlockHash(db); entry != blockFull.Hash() {
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t.Fatalf("Head block hash mismatch: have %v, want %v", entry, blockFull.Hash())
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}
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}
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