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package test
import (
"Chain/pkg/blockchain"
"Chain/pkg/utils"
"os"
"testing"
)
func TestNewChain(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
if bc.Length != 1 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 1, bc.Length)
}
if _, err := os.Stat("./blockinfodata"); os.IsNotExist(err) {
t.Errorf("Did not create leveldb blockinfodata")
}
if _, err := os.Stat("./coindata"); os.IsNotExist(err) {
t.Errorf("Did not create leveldb coindata")
}
if len(bc.UnsafeHashes) != 0 {
t.Errorf("unsafe hashes not initialized properly")
}
if bc.LastBlock == nil {
t.Errorf("Did not initialize last block")
}
}
func TestHandleAppendingBlock(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
lastBlock := bc.LastBlock
newBlock := MakeBlockFromPrev(lastBlock)
bc.HandleBlock(newBlock)
if bc.Length != 2 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 2, bc.Length)
}
if bc.LastHash != newBlock.Hash() {
t.Errorf("Expected last hash: %v\nActual last hash: %v", newBlock.Hash(), bc.LastHash)
}
if bc.LastBlock != newBlock {
t.Errorf("Expected block: %v\n Actual block: %v", newBlock, bc.LastBlock)
}
}
func TestHandleForkingBlock(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
currBlock := bc.LastBlock
currForkingBlock := bc.LastBlock
for i := 0; i < 4; i++ {
newBlock := MakeBlockFromPrev(currBlock)
newForkingBlock := MakeBlockFromPrev(currForkingBlock)
newForkingBlock.Header.Version = 2
if newBlock.Hash() == newForkingBlock.Hash() {
t.Errorf("Hashes should not be the same")
}
if i < 3 {
bc.HandleBlock(newBlock)
}
bc.HandleBlock(newForkingBlock)
currBlock = newBlock
currForkingBlock = newForkingBlock
}
if bc.Length != 5 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 5, bc.Length)
}
if bc.LastHash != currForkingBlock.Hash() {
t.Errorf("Expected last hash: %v\nActual last hash: %v", currForkingBlock.Hash(), bc.LastHash)
}
if bc.LastBlock != currForkingBlock {
t.Errorf("Expected block: %v\n Actual block: %v", currForkingBlock, bc.LastBlock)
}
}
func TestHandleInvalidBlock(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
lastBlock := bc.LastBlock
block1 := MakeBlockFromPrev(lastBlock)
block2 := MakeBlockFromPrev(block1)
bc.HandleBlock(block2)
if bc.Length != 1 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 1, bc.Length)
}
if bc.LastHash != lastBlock.Hash() {
t.Errorf("Expected last hash: %v\nActual last hash: %v", lastBlock.Hash(), bc.LastHash)
}
if bc.LastBlock != lastBlock {
t.Errorf("Expected block: %v\n Actual block: %v", lastBlock, bc.LastBlock)
}
}
func TestHandle50Blocks(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
currBlock := bc.LastBlock
for i := 0; i < 50; i++ {
newBlock := MakeBlockFromPrev(currBlock)
bc.HandleBlock(newBlock)
currBlock = bc.LastBlock
utils.Debug.Printf("iteration: %v/49", i)
}
if bc.Length != 51 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 51, bc.Length)
}
if bc.LastHash != currBlock.Hash() {
t.Errorf("Expected last hash: %v\nActual last hash: %v", currBlock.Hash(), bc.LastHash)
}
if bc.LastBlock != currBlock {
t.Errorf("Expected block: %v\n Actual block: %v", currBlock, bc.LastBlock)
}
}
func TestHandle2Forks(t *testing.T) {
defer cleanUp()
bc := blockchain.New(blockchain.DefaultConfig())
currBlock := bc.LastBlock
currForkingBlock := bc.LastBlock
for i := 0; i < 3; i++ {
newBlock := MakeBlockFromPrev(currBlock)
newForkingBlock := MakeBlockFromPrev(currForkingBlock)
newForkingBlock.Header.Version = 2
if newBlock.Hash() == newForkingBlock.Hash() {
t.Errorf("Hashes should not be the same")
}
if i != 1 {
bc.HandleBlock(newBlock)
bc.HandleBlock(newForkingBlock)
} else {
bc.HandleBlock(newForkingBlock)
bc.HandleBlock(newBlock)
}
currBlock = newBlock
currForkingBlock = newForkingBlock
}
if bc.Length != 4 {
t.Errorf("Expected chain length: %v\n Actual chain length: %v", 4, bc.Length)
}
if bc.LastHash != currBlock.Hash() {
t.Errorf("Expected last hash: %v\nActual last hash: %v", currBlock.Hash(), bc.LastHash)
}
if bc.LastBlock != currBlock {
t.Errorf("Expected block: %v\n Actual block: %v", currBlock, bc.LastBlock)
}
}
|
