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package api
import (
"bytes"
"encoding/base64"
"net/url"
"testing"
"time"
"github.com/NebulousLabs/Sia/encoding"
"github.com/NebulousLabs/Sia/types"
)
// TestTransactionPoolRawHandler verifies that the transaction pools' raw
// transaction post endpoint works correctly.
func TestTransactionPoolRawHandlerPOST(t *testing.T) {
if testing.Short() {
t.SkipNow()
}
t.Parallel()
st, err := createServerTester(t.Name())
if err != nil {
t.Fatal(err)
}
// Spin up a second and fourth server tester, and get them all on the same
// block. The fourth server tester will be used later, after a third is
// created and used.
st2, err := blankServerTester(t.Name() + "-st2")
if err != nil {
t.Fatal(err)
}
st4, err := blankServerTester(t.Name() + "-st4")
if err != nil {
t.Fatal(err)
}
err = fullyConnectNodes([]*serverTester{st, st2, st4})
if err != nil {
t.Fatal(err)
}
// Reset the peers, giving them different ip addresses, preventing them
// from connecting to eachother.
err = st.server.Close()
if err != nil {
t.Fatal(err)
}
err = st2.server.Close()
if err != nil {
t.Fatal(err)
}
err = st4.server.Close()
if err != nil {
t.Fatal(err)
}
st, err = assembleServerTester(st.walletKey, st.dir)
if err != nil {
t.Fatal(err)
}
defer st.panicClose()
st2, err = assembleServerTester(st2.walletKey, st2.dir)
if err != nil {
t.Fatal(err)
}
defer st2.panicClose()
st4, err = assembleServerTester(st4.walletKey, st4.dir)
if err != nil {
t.Fatal(err)
}
defer st4.panicClose()
// Create a transaction on one node and fetch it.
sentValue := types.SiacoinPrecision.Mul64(1000)
txns, err := st.wallet.SendSiacoins(sentValue, types.UnlockHash{})
if err != nil {
t.Fatal(err)
}
lastTxn := txns[len(txns)-1]
var trg TpoolRawGET
err = st.getAPI("/tpool/raw/"+lastTxn.ID().String(), &trg)
if err != nil {
t.Fatal(err)
}
// Verify the correctness of the transaction.
var decodedTxn types.Transaction
err = encoding.Unmarshal(trg.Transaction, &decodedTxn)
if err != nil {
t.Fatal(err)
}
if decodedTxn.ID() != lastTxn.ID() {
t.Fatal("tpool raw get returned the wrong transaction")
}
// Verify the correctness of the parents.
var decodedParents []types.Transaction
err = encoding.Unmarshal(trg.Parents, &decodedParents)
if err != nil {
t.Fatal(err)
}
if len(decodedParents) != len(txns)-1 {
t.Fatal("returned the incorrect number of parents")
}
// Transaction should not be visible on node 2.
var trg2 TpoolRawGET
err = st2.getAPI("/tpool/raw/"+lastTxn.ID().String(), &trg2)
if err.Error() != "transaction not found in transaction pool" {
t.Fatal("transaction should be missing initially from the second tpool")
}
// Try posting the transaction to node 2.
postValues := url.Values{}
postValues.Set("parents", string(trg.Parents))
postValues.Set("transaction", string(trg.Transaction))
err = st2.stdPostAPI("/tpool/raw", postValues)
if err != nil {
t.Fatal(err)
}
// Verify that the two transactions returned from each server are
// identical.
err = st2.getAPI("/tpool/raw/"+lastTxn.ID().String(), &trg2)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(trg2.Parents, trg.Parents) {
t.Error("transaction parents mismatch")
}
if !bytes.Equal(trg2.Transaction, trg.Transaction) {
t.Error("transaction parents mismatch")
}
// Create a third server tester, connect it to the second one.
st3, err := blankServerTester(t.Name() + "-st3")
if err != nil {
t.Fatal(err)
}
defer st3.server.panicClose()
err = fullyConnectNodes([]*serverTester{st2, st3})
if err != nil {
t.Fatal(err)
}
// Posting the raw transaction to the second server again should cause it
// to be broadcast to the third server.
err = st2.stdPostAPI("/tpool/raw", postValues)
if err != nil {
t.Fatal(err)
}
retry(100, time.Millisecond*100, func() error {
return st3.getAPI("/tpool/raw/"+lastTxn.ID().String(), &trg)
})
// Mine a block on the first server, which should clear its transaction
// pool.
_, err = st.miner.AddBlock()
if err != nil {
t.Fatal(err)
}
err = st.getAPI("/tpool/raw/"+lastTxn.ID().String(), &trg)
if err.Error() != "transaction not found in transaction pool" {
t.Fatal("transaction should be gone from the pool after mining a block")
}
// Convert the returned transactions to base64, which is how they will be
// presetned to someone using curl. Submit those to the POST endpoint. The
// POST endpoint should gracefully handle that submission as base64.
//
// The first 3 st's all have the transactions already, so now we'll use st4.
b64Parents := base64.StdEncoding.EncodeToString(trg.Parents)
b64Transaction := base64.StdEncoding.EncodeToString(trg.Transaction)
postValues = url.Values{}
postValues.Set("parents", b64Parents)
postValues.Set("transaction", b64Transaction)
err = st4.stdPostAPI("/tpool/raw", postValues)
if err != nil {
t.Fatal(err)
}
}
// TestTransactionPoolFee tests the /tpool/fee endpoint.
func TestTransactionPoolFee(t *testing.T) {
if testing.Short() {
t.SkipNow()
}
t.Parallel()
st, err := createServerTester(t.Name())
if err != nil {
t.Fatal(err)
}
var fees TpoolFeeGET
err = st.getAPI("/tpool/fee", &fees)
if err != nil {
t.Fatal(err)
}
min, max := st.tpool.FeeEstimation()
if !min.Equals(fees.Minimum) || !max.Equals(fees.Maximum) {
t.Fatal("fee mismatch")
}
}
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