How to use serializeHeader method of db Package

Best Syzkaller code snippet using db.serializeHeader

headers_test.go

Source:headers_test.go

...61		totalWork: big.NewInt(1000),62	}63}64func TestSerializeHeader(t *testing.T) {65	b, err := serializeHeader(testSh1)66	if err != nil {67		t.Error(err)68	}69	var buf bytes.Buffer70	testHdr1.Serialize(&buf)71	if !bytes.Equal(buf.Bytes(), b[:80]) {72		t.Error("Failed to serialize header")73	}74	if !bytes.Equal([]byte{0x00, 0x00, 0x00, 0x64}, b[80:84]) {75		t.Error("Failed to serialize height")76	}77	if !bytes.Equal([]byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,78		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,79		0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xF4}, b[84:116]) {80		t.Error("Failed to serialize big int")81	}82}83func TestDeserializeHeader(t *testing.T) {84	height := []byte{0x00, 0x00, 0x00, 0x64}85	work := []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xf4}86	sh, err := deserializeHeader(append(header1Bytes, append(height, work...)...))87	if err != nil {88		t.Error(err)89	}90	shHash := sh.header.BlockHash()91	testHdrHash := testHdr1.BlockHash()92	if !testHdrHash.IsEqual(&shHash) {93		t.Error("Failed to serialize block header")94	}95	if sh.height != 100 {96		t.Error("Failed to serialize height")97	}98	if sh.totalWork.Cmp(big.NewInt(500)) != 0 {99		t.Error("Failed to serialize total work")100	}101}102func TestHeaderDB_put(t *testing.T) {103	headers, err := NewHeaderDB("")104	if err != nil {105		t.Error(err)106	}107	// Test put with new tip108	err = headers.put(testSh1, true)109	if err != nil {110		t.Error(err)111	}112	err = headers.db.View(func(btx *bolt.Tx) error {113		hdrs := btx.Bucket(BKTHeaders)114		testHash := testSh1.header.BlockHash()115		b := hdrs.Get(testHash.CloneBytes())116		if b == nil {117			t.Error("Header doesn't exist in db")118		}119		ser, err := serializeHeader(testSh1)120		if err != nil {121			return err122		}123		if !bytes.Equal(ser, b) {124			t.Error("Failed to PUT header correctly")125		}126		tip := btx.Bucket(BKTChainTip)127		if err != nil {128			return err129		}130		b = tip.Get(KEYChainTip)131		if b == nil {132			t.Error("Best tip doesn't exist in db")133		}134		ser, err = serializeHeader(testSh1)135		if err != nil {136			return err137		}138		if !bytes.Equal(ser, b) {139			t.Error("Best tip failed to PUT header correctly")140		}141		return nil142	})143	if err != nil {144		t.Error(err)145	}146	// Test header without new tip147	err = headers.put(testSh2, false)148	if err != nil {149		t.Error(err)150	}151	err = headers.db.View(func(btx *bolt.Tx) error {152		hdrs := btx.Bucket(BKTHeaders)153		testHash := testSh2.header.BlockHash()154		b := hdrs.Get(testHash.CloneBytes())155		if b == nil {156			t.Error("Header doesn't exist in db")157		}158		ser, err := serializeHeader(testSh2)159		if err != nil {160			return err161		}162		if !bytes.Equal(ser, b) {163			t.Error("Failed to PUT header correctly")164		}165		tip := btx.Bucket(BKTChainTip)166		if err != nil {167			return err168		}169		b = tip.Get(KEYChainTip)170		if b == nil {171			t.Error("Best tip doesn't exist in db")172		}173		ser, err = serializeHeader(testSh1)174		if err != nil {175			return err176		}177		if !bytes.Equal(ser, b) {178			t.Error("Best tip failed to PUT header correctly")179		}180		return nil181	})182	if err != nil {183		t.Error(err)184	}185	// Test put duplicate186	err = headers.put(testSh2, true)187	if err != nil {188		t.Error(err)189	}190	os.RemoveAll("headers.bin")191}192func TestHeaderDB_GetPreviousHeader(t *testing.T) {193	headers, err := NewHeaderDB("")194	if err != nil {195		t.Error(err)196	}197	err = headers.put(testSh1, false)198	if err != nil {199		t.Error(err)200	}201	hdr, err := headers.GetPreviousHeader(testSh2.header)202	if err != nil {203		t.Error(err)204	}205	shHash := testSh1.header.BlockHash()206	testHdrHash := hdr.header.BlockHash()207	if !testHdrHash.IsEqual(&shHash) {208		t.Error("Get previous header returned incorrect header")209	}210	os.RemoveAll("headers.bin")211}212func TestHeaderDB_GetBestHeader(t *testing.T) {213	headers, err := NewHeaderDB("")214	if err != nil {215		t.Error(err)216	}217	err = headers.put(testSh1, false)218	if err != nil {219		t.Error(err)220	}221	hdr, err := headers.GetBestHeader()222	if err == nil {223		t.Error("Didn't receive error when fetching best header without one set")224	}225	err = headers.put(testSh1, true)226	if err != nil {227		t.Error(err)228	}229	err = headers.put(testSh2, false)230	if err != nil {231		t.Error(err)232	}233	hdr, err = headers.GetBestHeader()234	if err != nil {235		t.Error(err)236	}237	testSer, err := serializeHeader(testSh1)238	if err != nil {239		t.Error(err)240	}241	ser, err := serializeHeader(hdr)242	if err != nil {243		t.Error(err)244	}245	if !bytes.Equal(testSer, ser) {246		t.Error("Failed to fetch best header from the db")247	}248	os.RemoveAll("headers.bin")249}250func TestHeaderDB_Height(t *testing.T) {251	headers, err := NewHeaderDB("")252	if err != nil {253		t.Error(err)254	}255	err = headers.put(testSh1, true)...

serializeHeader

Using AI Code Generation

1import (2func main() {3	db, err := badger.Open(opts)4	if err != nil {5		fmt.Println(err)6	}7	defer db.Close()8	err = db.View(func(txn *badger.Txn) error {9		item, err := txn.Get([]byte("answer"))10		if err != nil {11		}12		err = item.Value(func(val []byte) error {13			valCopy = append([]byte{}, val...)14		})15		if err != nil {16		}17		fmt.Printf("The answer is: %s\n", valCopy)18	})19	if err != nil {20		fmt.Println(err)21	}22}23import (24func main() {25	db, err := badger.Open(opts)26	if err != nil {27		fmt.Println(err)28	}29	defer db.Close()30	err = db.Update(func(txn *badger.Txn) error {31		err := txn.Set([]byte("answer"), []byte("42"))32	})33	if err != nil {34		fmt.Println(err)35	}36}

serializeHeader

Using AI Code Generation

1func main() {2    db := db.New()3    db.Add("a", "b")4    db.Add("c", "d")5    db.Add("e", "f")6    fmt.Println(db.SerializeHeader())7}8func main() {9    db := db.New()10    db.Add("a", "b")11    db.Add("c", "d")12    db.Add("e", "f")13    fmt.Println(db.SerializeHeader())14}15func main() {16    db := db.New()17    db.Add("a", "b")18    db.Add("c", "d")19    db.Add("e", "f")20    fmt.Println(db.SerializeHeader())21}22func main() {23    db := db.New()24    db.Add("a", "b")25    db.Add("c", "d")26    db.Add("e", "f")27    fmt.Println(db.SerializeHeader())28}29func main() {30    db := db.New()31    db.Add("a", "b")32    db.Add("c", "d")33    db.Add("e", "f")34    fmt.Println(db.SerializeHeader())35}36func main() {37    db := db.New()38    db.Add("a", "b")39    db.Add("c", "d")40    db.Add("e", "f")41    fmt.Println(db.SerializeHeader())42}43func main() {44    db := db.New()45    db.Add("a", "b")46    db.Add("c", "d")47    db.Add("e", "f")48    fmt.Println(db.SerializeHeader())49}50func main() {51    db := db.New()52    db.Add("a", "b")53    db.Add("c", "d")54    db.Add("e", "f")55    fmt.Println(db.SerializeHeader())56}

serializeHeader

Using AI Code Generation

1import (2func main() {3	db, err := badger.Open(badger.DefaultOptions("/tmp/badger"))4	if err != nil {5		log.Fatal(err)6	}7	defer db.Close()8	db.Update(func(txn *badger.Txn) error {9		err := txn.Set([]byte("answer"), []byte("42"))10	})11	err = db.View(func(txn *badger.Txn) error {12		item, err := txn.Get([]byte("answer"))13		if err != nil {14		}15		err = item.Value(func(val []byte) error {16			fmt.Printf("The answer is: %s\n", val)17		})18	})19	if err != nil {20		log.Fatal(err)21	}22}23import (24type Block struct {25}26func (b *Block) Serialize() []byte {27	encoder := gob.NewEncoder(&result)28	err := encoder.Encode(b)29	if err != nil {30		log.Panic(err)31	}32	return result.Bytes()33}34func DeserializeBlock(d []byte) *Block {35	decoder := gob.NewDecoder(bytes.NewReader(d))36	err := decoder.Decode(&block)37	if err != nil {38		log.Panic(err)39	}40}41func main() {42	db, err := badger.Open(badger.DefaultOptions("/tmp/badger"))43	if err != nil {44		log.Fatal(err)45	}46	defer db.Close()47	db.Update(func(txn *badger.Txn) error {48		err := txn.Set([]byte("answer"), []byte("42"))49	})50	err = db.View(func(txn *badger.Txn) error {51		item, err := txn.Get([]

serializeHeader

Using AI Code Generation

1import (2func main() {3	db := new(DB)4	serializedHeader := db.serializeHeader()5	fmt.Println("Serialized Header: ", serializedHeader)6	deserializedHeader := make(map[string]interface{})7	err := json.Unmarshal([]byte(serializedHeader), &deserializedHeader)8	if err != nil {9		log.Fatal(err)10	}11	fmt.Println("Deserialized Header: ", deserializedHeader)12}13type DB struct {14	header map[string]interface{}15}16func (db *DB) serializeHeader() string {17	serializedHeader, _ := json.Marshal(db.header)18	return string(serializedHeader)19}20type DB struct {21	header map[string]interface{}22}23func (db *DB) serializeHeader() string {24	serializedHeader, _ := json.Marshal(db.header)25	return string(serializedHeader)26}27type DB struct {28	header map[string]interface{}29}30func (db *DB) serializeHeader() string {31	serializedHeader, _ := json.Marshal(db.header)32	return string(serializedHeader)33}34type DB struct {35	header map[string]interface{}36}37func (db *DB) serializeHeader() string {38	serializedHeader, _ := json.Marshal(db.header)39	return string(serializedHeader)40}41type DB struct {

serializeHeader

Using AI Code Generation

1import (2type Blockchain struct {3}4type Block struct {5}6func DBExists() bool {7	if _, err := bolt.Open("blockchain.db", 0600, nil); err != nil {8	}9}10func CreateBlockChain(address string) *Blockchain {11	if DBExists() {12		fmt.Println("Blockchain already exists.")13		runtime.Goexit()14	}15	db, err := bolt.Open("blockchain.db", 0600, nil)16	Handle(err)17	err = db.Update(func(tx *bolt.Tx) error {18		cbtx := NewCoinbaseTX(address, "")19		genesis := NewGenesisBlock(cbtx)20		b, err := tx.CreateBucket([]byte(blocksBucket))21		Handle(err)22		err = b.Put(genesis.Hash, genesis.Serialize())23		Handle(err)24		err = b.Put([]byte("1"), genesis.Hash)25		Handle(err)26	})27	Handle(err)28	bc := Blockchain{tip, db}29}30type BlockchainIterator struct {31}32func (i *BlockchainIterator) Next() *Block {33	err := i.db.View(func(tx *bolt.Tx) error {34		b := tx.Bucket([]byte(blocksBucket))35		encodedBlock := b.Get(i.currentHash)36		block = DeserializeBlock(encodedBlock)37	})38	Handle(err)39}40func NewBlockchain() *Blockchain {41	db, err := bolt.Open("blockchain.db", 0600, nil)42	Handle(err)43	err = db.Update(func(tx *bolt.Tx) error {44		b := tx.Bucket([]byte(blocksBucket))45		tip = b.Get([]byte("1"))46	})

serializeHeader

Using AI Code Generation

1func (db *DB) SerializeHeader() ([]byte, error) {2	serializedHeader, err := db.serializeHeader()3	if err != nil {4	}5}6func (db *DB) DeserializeHeader(serializedHeader []byte) error {7	err := db.deserializeHeader(serializedHeader)8	if err != nil {9	}10}11func (db *DB) SerializeNode(node *node) ([]byte, error) {12	serializedNode, err := db.serializeNode(node)13	if err != nil {14	}15}16func (db *DB) DeserializeNode(serializedNode []byte) (*node, error) {17	deserializedNode, err := db.deserializeNode(serializedNode)18	if err != nil {19	}20}21func (db *DB) SerializeLeaf(leaf *leaf) ([]byte, error) {22	serializedLeaf, err := db.serializeLeaf(leaf)23	if err != nil {24	}25}

serializeHeader

Using AI Code Generation

1func main() {2    db := db.NewDB()3    db.SerializeHeader()4}5import (6type DB struct {7}8func NewDB() *DB {9    return &DB{10    }11}12func (db *DB) SerializeHeader() {13    header, _ := json.Marshal(db)14    fmt.Println(string(header))15}16{"Name":"MyDB"}

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