Files
gocryptotrader/exchanges/websocket/wsorderbook/wsorderbook_test.go
2019-08-22 18:32:57 +10:00

583 lines
16 KiB
Go

package wsorderbook
import (
"fmt"
"math/rand"
"testing"
"time"
"github.com/thrasher-corp/gocryptotrader/currency"
"github.com/thrasher-corp/gocryptotrader/exchanges/asset"
"github.com/thrasher-corp/gocryptotrader/exchanges/orderbook"
)
var itemArray = [][]orderbook.Item{
{{Price: 1000, Amount: 1, ID: 1}},
{{Price: 2000, Amount: 1, ID: 2}},
{{Price: 3000, Amount: 1, ID: 3}},
{{Price: 3000, Amount: 2, ID: 4}},
{{Price: 4000, Amount: 0, ID: 6}},
{{Price: 5000, Amount: 1, ID: 5}},
}
const (
exchangeName = "exchangeTest"
)
func createSnapshot() (obl *WebsocketOrderbookLocal, curr currency.Pair, asks, bids []orderbook.Item, err error) {
var snapShot1 orderbook.Base
curr = currency.NewPairFromString("BTCUSD")
asks = []orderbook.Item{
{Price: 4000, Amount: 1, ID: 6},
}
bids = []orderbook.Item{
{Price: 4000, Amount: 1, ID: 6},
}
snapShot1.Asks = asks
snapShot1.Bids = bids
snapShot1.AssetType = asset.Spot
snapShot1.Pair = curr
obl = &WebsocketOrderbookLocal{}
err = obl.LoadSnapshot(&snapShot1, false)
return
}
// BenchmarkBufferPerformance demonstrates buffer more performant than multi process calls
func BenchmarkBufferPerformance(b *testing.B) {
obl, curr, asks, bids, err := createSnapshot()
if err != nil {
b.Fatal(err)
}
obl.exchangeName = exchangeName
obl.sortBuffer = true
update := &WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
}
for i := 0; i < b.N; i++ {
randomIndex := rand.Intn(5)
update.Asks = itemArray[randomIndex]
update.Bids = itemArray[randomIndex]
err = obl.Update(update)
if err != nil {
b.Fatal(err)
}
}
}
// BenchmarkBufferSortingPerformance benchmark
func BenchmarkBufferSortingPerformance(b *testing.B) {
obl, curr, asks, bids, err := createSnapshot()
if err != nil {
b.Fatal(err)
}
obl.exchangeName = exchangeName
obl.sortBuffer = true
obl.bufferEnabled = true
obl.obBufferLimit = 5
update := &WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
}
for i := 0; i < b.N; i++ {
randomIndex := rand.Intn(5)
update.Asks = itemArray[randomIndex]
update.Bids = itemArray[randomIndex]
err = obl.Update(update)
if err != nil {
b.Fatal(err)
}
}
}
// BenchmarkNoBufferPerformance demonstrates orderbook process less performant than buffer
func BenchmarkNoBufferPerformance(b *testing.B) {
obl, curr, asks, bids, err := createSnapshot()
if err != nil {
b.Fatal(err)
}
obl.exchangeName = exchangeName
update := &WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
}
for i := 0; i < b.N; i++ {
randomIndex := rand.Intn(5)
update.Asks = itemArray[randomIndex]
update.Bids = itemArray[randomIndex]
err = obl.Update(update)
if err != nil {
b.Fatal(err)
}
}
}
// TestHittingTheBuffer logic test
func TestHittingTheBuffer(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
obl.exchangeName = exchangeName
obl.bufferEnabled = true
obl.obBufferLimit = 5
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
bids := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
})
if err != nil {
t.Fatal(err)
}
}
if len(obl.ob[curr][asset.Spot].Asks) != 3 {
t.Log(obl.ob[curr][asset.Spot])
t.Errorf("expected 3 entries, received: %v", len(obl.ob[curr][asset.Spot].Asks))
}
if len(obl.ob[curr][asset.Spot].Bids) != 3 {
t.Errorf("expected 3 entries, received: %v", len(obl.ob[curr][asset.Spot].Bids))
}
}
// TestInsertWithIDs logic test
func TestInsertWithIDs(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
obl.exchangeName = exchangeName
obl.bufferEnabled = true
obl.updateEntriesByID = true
obl.obBufferLimit = 5
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
bids := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
Action: "insert",
})
if err != nil {
t.Fatal(err)
}
}
if len(obl.ob[curr][asset.Spot].Asks) != 6 {
t.Errorf("expected 6 entries, received: %v", len(obl.ob[curr][asset.Spot].Asks))
}
if len(obl.ob[curr][asset.Spot].Bids) != 6 {
t.Errorf("expected 6 entries, received: %v", len(obl.ob[curr][asset.Spot].Bids))
}
}
// TestSortIDs logic test
func TestSortIDs(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
obl.exchangeName = exchangeName
obl.bufferEnabled = true
obl.sortBufferByUpdateIDs = true
obl.sortBuffer = true
obl.obBufferLimit = 5
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
bids := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateID: int64(i),
AssetType: asset.Spot,
})
if err != nil {
t.Fatal(err)
}
}
if len(obl.ob[curr][asset.Spot].Asks) != 3 {
t.Errorf("expected 6 entries, received: %v", len(obl.ob[curr][asset.Spot].Asks))
}
if len(obl.ob[curr][asset.Spot].Bids) != 3 {
t.Errorf("expected 6 entries, received: %v", len(obl.ob[curr][asset.Spot].Bids))
}
}
// TestDeleteWithIDs logic test
func TestDeleteWithIDs(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
obl.exchangeName = exchangeName
obl.updateEntriesByID = true
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
bids := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
Action: "delete",
})
if err != nil {
t.Fatal(err)
}
}
if len(obl.ob[curr][asset.Spot].Asks) != 0 {
t.Errorf("expected 0 entries, received: %v", len(obl.ob[curr][asset.Spot].Asks))
}
if len(obl.ob[curr][asset.Spot].Bids) != 0 {
t.Errorf("expected 0 entries, received: %v", len(obl.ob[curr][asset.Spot].Bids))
}
}
// TestUpdateWithIDs logic test
func TestUpdateWithIDs(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
obl.exchangeName = exchangeName
obl.updateEntriesByID = true
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
bids := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
Action: "update",
})
if err != nil {
t.Fatal(err)
}
}
if len(obl.ob[curr][asset.Spot].Asks) != 1 {
t.Log(obl.ob[curr][asset.Spot])
t.Errorf("expected 1 entries, received: %v", len(obl.ob[curr][asset.Spot].Asks))
}
if len(obl.ob[curr][asset.Spot].Bids) != 1 {
t.Errorf("expected 1 entries, received: %v", len(obl.ob[curr][asset.Spot].Bids))
}
}
// TestOutOfOrderIDs logic test
func TestOutOfOrderIDs(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
outOFOrderIDs := []int64{2, 1, 5, 3, 4, 6}
if itemArray[0][0].Price != 1000 {
t.Errorf("expected sorted price to be 3000, received: %v", itemArray[1][0].Price)
}
obl.exchangeName = exchangeName
obl.bufferEnabled = true
obl.sortBuffer = true
obl.obBufferLimit = 5
for i := 0; i < len(itemArray); i++ {
asks := itemArray[i]
err = obl.Update(&WebsocketOrderbookUpdate{
Asks: asks,
CurrencyPair: curr,
UpdateID: outOFOrderIDs[i],
AssetType: asset.Spot,
})
if err != nil {
t.Fatal(err)
}
}
// Index 1 since index 0 is price 7000
if obl.ob[curr][asset.Spot].Asks[1].Price != 2000 {
t.Errorf("expected sorted price to be 3000, received: %v", obl.ob[curr][asset.Spot].Asks[1].Price)
}
}
// TestRunUpdateWithoutSnapshot logic test
func TestRunUpdateWithoutSnapshot(t *testing.T) {
var obl WebsocketOrderbookLocal
var snapShot1 orderbook.Base
curr := currency.NewPairFromString("BTCUSD")
asks := []orderbook.Item{
{Price: 4000, Amount: 1, ID: 8},
}
bids := []orderbook.Item{
{Price: 5999, Amount: 1, ID: 8},
{Price: 4000, Amount: 1, ID: 9},
}
snapShot1.Asks = asks
snapShot1.Bids = bids
snapShot1.AssetType = asset.Spot
snapShot1.Pair = curr
obl.exchangeName = exchangeName
err := obl.Update(&WebsocketOrderbookUpdate{
Bids: bids,
Asks: asks,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
})
if err == nil {
t.Fatal("expected an error running update with no snapshot loaded")
}
if err.Error() != "ob.Base could not be found for Exchange exchangeTest CurrencyPair: BTCUSD AssetType: spot" {
t.Fatal(err)
}
}
// TestRunUpdateWithoutAnyUpdates logic test
func TestRunUpdateWithoutAnyUpdates(t *testing.T) {
var obl WebsocketOrderbookLocal
var snapShot1 orderbook.Base
curr := currency.NewPairFromString("BTCUSD")
snapShot1.Asks = []orderbook.Item{}
snapShot1.Bids = []orderbook.Item{}
snapShot1.AssetType = asset.Spot
snapShot1.Pair = curr
obl.exchangeName = exchangeName
err := obl.Update(&WebsocketOrderbookUpdate{
Bids: snapShot1.Asks,
Asks: snapShot1.Bids,
CurrencyPair: curr,
UpdateTime: time.Now(),
AssetType: asset.Spot,
})
if err == nil {
t.Fatal("expected an error running update with no snapshot loaded")
}
if err.Error() != fmt.Sprintf("%v cannot have bids and ask targets both nil", exchangeName) {
t.Fatal("expected nil asks and bids error")
}
}
// TestRunSnapshotWithNoData logic test
func TestRunSnapshotWithNoData(t *testing.T) {
var obl WebsocketOrderbookLocal
var snapShot1 orderbook.Base
curr := currency.NewPairFromString("BTCUSD")
snapShot1.Asks = []orderbook.Item{}
snapShot1.Bids = []orderbook.Item{}
snapShot1.AssetType = asset.Spot
snapShot1.Pair = curr
snapShot1.ExchangeName = "test"
obl.exchangeName = "test"
err := obl.LoadSnapshot(&snapShot1,
false)
if err == nil {
t.Fatal("expected an error loading a snapshot")
}
if err.Error() != "test snapshot ask and bids are nil" {
t.Fatal(err)
}
}
// TestLoadSnapshotWithOverride logic test
func TestLoadSnapshotWithOverride(t *testing.T) {
var obl WebsocketOrderbookLocal
var snapShot1 orderbook.Base
curr := currency.NewPairFromString("BTCUSD")
asks := []orderbook.Item{
{Price: 4000, Amount: 1, ID: 8},
}
bids := []orderbook.Item{
{Price: 4000, Amount: 1, ID: 9},
}
snapShot1.Asks = asks
snapShot1.Bids = bids
snapShot1.AssetType = asset.Spot
snapShot1.Pair = curr
err := obl.LoadSnapshot(&snapShot1, false)
if err != nil {
t.Error(err)
}
err = obl.LoadSnapshot(&snapShot1, false)
if err == nil {
t.Error("expected error: 'snapshot instance already found'")
}
err = obl.LoadSnapshot(&snapShot1, true)
if err != nil {
t.Error(err)
}
}
// TestInsertWithIDs logic test
func TestFlushCache(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
if obl.ob[curr][asset.Spot] == nil {
t.Error("expected ob to have ask entries")
}
obl.FlushCache()
if obl.ob[curr][asset.Spot] != nil {
t.Error("expected ob be flushed")
}
}
// TestInsertingSnapShots logic test
func TestInsertingSnapShots(t *testing.T) {
var obl WebsocketOrderbookLocal
var snapShot1 orderbook.Base
asks := []orderbook.Item{
{Price: 6000, Amount: 1, ID: 1},
{Price: 6001, Amount: 0.5, ID: 2},
{Price: 6002, Amount: 2, ID: 3},
{Price: 6003, Amount: 3, ID: 4},
{Price: 6004, Amount: 5, ID: 5},
{Price: 6005, Amount: 2, ID: 6},
{Price: 6006, Amount: 1.5, ID: 7},
{Price: 6007, Amount: 0.5, ID: 8},
{Price: 6008, Amount: 23, ID: 9},
{Price: 6009, Amount: 9, ID: 10},
{Price: 6010, Amount: 7, ID: 11},
}
bids := []orderbook.Item{
{Price: 5999, Amount: 1, ID: 12},
{Price: 5998, Amount: 0.5, ID: 13},
{Price: 5997, Amount: 2, ID: 14},
{Price: 5996, Amount: 3, ID: 15},
{Price: 5995, Amount: 5, ID: 16},
{Price: 5994, Amount: 2, ID: 17},
{Price: 5993, Amount: 1.5, ID: 18},
{Price: 5992, Amount: 0.5, ID: 19},
{Price: 5991, Amount: 23, ID: 20},
{Price: 5990, Amount: 9, ID: 21},
{Price: 5989, Amount: 7, ID: 22},
}
snapShot1.Asks = asks
snapShot1.Bids = bids
snapShot1.AssetType = asset.Spot
snapShot1.Pair = currency.NewPairFromString("BTCUSD")
err := obl.LoadSnapshot(&snapShot1, false)
if err != nil {
t.Fatal(err)
}
var snapShot2 orderbook.Base
asks = []orderbook.Item{
{Price: 51, Amount: 1, ID: 1},
{Price: 52, Amount: 0.5, ID: 2},
{Price: 53, Amount: 2, ID: 3},
{Price: 54, Amount: 3, ID: 4},
{Price: 55, Amount: 5, ID: 5},
{Price: 56, Amount: 2, ID: 6},
{Price: 57, Amount: 1.5, ID: 7},
{Price: 58, Amount: 0.5, ID: 8},
{Price: 59, Amount: 23, ID: 9},
{Price: 50, Amount: 9, ID: 10},
{Price: 60, Amount: 7, ID: 11},
}
bids = []orderbook.Item{
{Price: 49, Amount: 1, ID: 12},
{Price: 48, Amount: 0.5, ID: 13},
{Price: 47, Amount: 2, ID: 14},
{Price: 46, Amount: 3, ID: 15},
{Price: 45, Amount: 5, ID: 16},
{Price: 44, Amount: 2, ID: 17},
{Price: 43, Amount: 1.5, ID: 18},
{Price: 42, Amount: 0.5, ID: 19},
{Price: 41, Amount: 23, ID: 20},
{Price: 40, Amount: 9, ID: 21},
{Price: 39, Amount: 7, ID: 22},
}
snapShot2.Asks = asks
snapShot2.Bids = bids
snapShot2.AssetType = asset.Spot
snapShot2.Pair = currency.NewPairFromString("LTCUSD")
err = obl.LoadSnapshot(&snapShot2, false)
if err != nil {
t.Fatal(err)
}
var snapShot3 orderbook.Base
asks = []orderbook.Item{
{Price: 511, Amount: 1, ID: 1},
{Price: 52, Amount: 0.5, ID: 2},
{Price: 53, Amount: 2, ID: 3},
{Price: 54, Amount: 3, ID: 4},
{Price: 55, Amount: 5, ID: 5},
{Price: 56, Amount: 2, ID: 6},
{Price: 57, Amount: 1.5, ID: 7},
{Price: 58, Amount: 0.5, ID: 8},
{Price: 59, Amount: 23, ID: 9},
{Price: 50, Amount: 9, ID: 10},
{Price: 60, Amount: 7, ID: 11},
}
bids = []orderbook.Item{
{Price: 49, Amount: 1, ID: 12},
{Price: 48, Amount: 0.5, ID: 13},
{Price: 47, Amount: 2, ID: 14},
{Price: 46, Amount: 3, ID: 15},
{Price: 45, Amount: 5, ID: 16},
{Price: 44, Amount: 2, ID: 17},
{Price: 43, Amount: 1.5, ID: 18},
{Price: 42, Amount: 0.5, ID: 19},
{Price: 41, Amount: 23, ID: 20},
{Price: 40, Amount: 9, ID: 21},
{Price: 39, Amount: 7, ID: 22},
}
snapShot3.Asks = asks
snapShot3.Bids = bids
snapShot3.AssetType = "FUTURES"
snapShot3.Pair = currency.NewPairFromString("LTCUSD")
err = obl.LoadSnapshot(&snapShot3, false)
if err != nil {
t.Fatal(err)
}
if obl.ob[snapShot1.Pair][snapShot1.AssetType].Asks[0] != snapShot1.Asks[0] {
t.Errorf("loaded data mismatch. Expected %v, received %v", snapShot1.Asks[0], obl.ob[snapShot1.Pair][snapShot1.AssetType].Asks[0])
}
if obl.ob[snapShot2.Pair][snapShot2.AssetType].Asks[0] != snapShot2.Asks[0] {
t.Errorf("loaded data mismatch. Expected %v, received %v", snapShot2.Asks[0], obl.ob[snapShot2.Pair][snapShot2.AssetType].Asks[0])
}
if obl.ob[snapShot3.Pair][snapShot3.AssetType].Asks[0] != snapShot3.Asks[0] {
t.Errorf("loaded data mismatch. Expected %v, received %v", snapShot3.Asks[0], obl.ob[snapShot3.Pair][snapShot3.AssetType].Asks[0])
}
}
func TestGetOrderbook(t *testing.T) {
obl, curr, _, _, err := createSnapshot()
if err != nil {
t.Fatal(err)
}
ob := obl.GetOrderbook(curr, asset.Spot)
if obl.ob[curr][asset.Spot] != ob {
t.Error("Failed to get orderbook")
}
}
func TestSetup(t *testing.T) {
w := WebsocketOrderbookLocal{}
w.Setup(1, true, true, true, true, "hi")
if w.obBufferLimit != 1 || !w.bufferEnabled || !w.sortBuffer || !w.sortBufferByUpdateIDs || !w.updateEntriesByID || w.exchangeName != "hi" {
t.Errorf("Setup incorrectly loaded %v", w)
}
}