mirror of
https://github.com/d0zingcat/gocryptotrader.git
synced 2026-05-14 07:26:47 +00:00
049f18e27c
* Add in initial header pass back for package side inspection * change to ptr to point to correct ptr value to ensure len and cap values; dereferences so we don't need to string join the value iteration coming from main header * Add tests * More tests added for edge case * change field name * remove unnecessary coversion * changed return and comment
587 lines
12 KiB
Go
587 lines
12 KiB
Go
package request
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"log"
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"math"
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"strconv"
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"strings"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"golang.org/x/time/rate"
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)
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const unexpected = "unexpected values"
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var testURL string
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var serverLimit *rate.Limiter
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func TestMain(m *testing.M) {
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serverLimitInterval := time.Millisecond * 500
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serverLimit = NewRateLimit(serverLimitInterval, 1)
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serverLimitRetry := NewRateLimit(serverLimitInterval, 1)
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sm := http.NewServeMux()
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sm.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
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w.Header().Set("Content-Type", "application/json")
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io.WriteString(w, `{"response":true}`)
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})
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sm.HandleFunc("/error", func(w http.ResponseWriter, req *http.Request) {
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w.WriteHeader(http.StatusBadRequest)
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io.WriteString(w, `{"error":true}`)
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})
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sm.HandleFunc("/timeout", func(w http.ResponseWriter, req *http.Request) {
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time.Sleep(time.Millisecond * 100)
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w.WriteHeader(http.StatusGatewayTimeout)
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})
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sm.HandleFunc("/rate", func(w http.ResponseWriter, req *http.Request) {
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if !serverLimit.Allow() {
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http.Error(w,
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http.StatusText(http.StatusTooManyRequests),
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http.StatusTooManyRequests)
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io.WriteString(w, `{"response":false}`)
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return
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}
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io.WriteString(w, `{"response":true}`)
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})
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sm.HandleFunc("/rate-retry", func(w http.ResponseWriter, req *http.Request) {
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if !serverLimitRetry.Allow() {
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w.Header().Add("Retry-After", strconv.Itoa(int(math.Round(serverLimitInterval.Seconds()))))
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http.Error(w,
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http.StatusText(http.StatusTooManyRequests),
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http.StatusTooManyRequests)
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io.WriteString(w, `{"response":false}`)
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return
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}
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io.WriteString(w, `{"response":true}`)
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})
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sm.HandleFunc("/always-retry", func(w http.ResponseWriter, req *http.Request) {
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w.Header().Add("Retry-After", time.Now().Format(time.RFC1123))
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w.WriteHeader(http.StatusTooManyRequests)
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io.WriteString(w, `{"response":false}`)
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})
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server := httptest.NewServer(sm)
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testURL = server.URL
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issues := m.Run()
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server.Close()
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os.Exit(issues)
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}
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func TestNewRateLimit(t *testing.T) {
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t.Parallel()
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r := NewRateLimit(time.Second*10, 5)
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if r.Limit() != 0.5 {
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t.Fatal(unexpected)
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}
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// Ensures rate limiting factor is the same
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r = NewRateLimit(time.Second*2, 1)
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if r.Limit() != 0.5 {
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t.Fatal(unexpected)
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}
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// Test for open rate limit
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r = NewRateLimit(time.Second*2, 0)
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if r.Limit() != rate.Inf {
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t.Fatal(unexpected)
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}
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r = NewRateLimit(0, 69)
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if r.Limit() != rate.Inf {
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t.Fatal(unexpected)
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}
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}
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func TestCheckRequest(t *testing.T) {
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t.Parallel()
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r := New("TestRequest",
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new(http.Client))
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ctx := context.Background()
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var check *Item
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_, err := check.validateRequest(ctx, &Requester{})
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if err == nil {
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t.Fatal(unexpected)
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}
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_, err = check.validateRequest(ctx, nil)
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if err == nil {
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t.Fatal(unexpected)
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}
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_, err = check.validateRequest(ctx, r)
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if err == nil {
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t.Fatal(unexpected)
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}
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check = &Item{}
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_, err = check.validateRequest(ctx, r)
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if err == nil {
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t.Fatal(unexpected)
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}
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check.Path = testURL
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check.Method = " " // Forces method check; "" automatically converts to GET
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_, err = check.validateRequest(ctx, r)
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if err == nil {
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t.Fatal(unexpected)
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}
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check.Method = http.MethodPost
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_, err = check.validateRequest(ctx, r)
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if err != nil {
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t.Fatal(err)
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}
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var passback http.Header
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check.HeaderResponse = &passback
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_, err = check.validateRequest(ctx, r)
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if err == nil {
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t.Fatal("expected error when underlying memory is not allocated")
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}
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passback = http.Header{}
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// Test setting headers
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check.Headers = map[string]string{
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"Content-Type": "Super awesome HTTP party experience",
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}
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// Test user agent set
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r.UserAgent = "r00t axxs"
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req, err := check.validateRequest(ctx, r)
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if err != nil {
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t.Fatal(err)
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}
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if req.Header.Get("Content-Type") != "Super awesome HTTP party experience" {
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t.Fatal(unexpected)
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}
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if req.UserAgent() != "r00t axxs" {
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t.Fatal(unexpected)
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}
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}
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type GlobalLimitTest struct {
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Auth *rate.Limiter
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UnAuth *rate.Limiter
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}
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func (g *GlobalLimitTest) Limit(e EndpointLimit) error {
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switch e {
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case Auth:
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if g.Auth == nil {
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return errors.New("auth rate not set")
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}
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time.Sleep(g.Auth.Reserve().Delay())
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return nil
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case UnAuth:
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if g.UnAuth == nil {
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return errors.New("unauth rate not set")
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}
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time.Sleep(g.UnAuth.Reserve().Delay())
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return nil
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default:
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return fmt.Errorf("cannot execute functionality: %d not found", e)
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}
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}
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var globalshell = GlobalLimitTest{
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Auth: NewRateLimit(time.Millisecond*600, 1),
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UnAuth: NewRateLimit(time.Second*1, 100)}
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func TestDoRequest(t *testing.T) {
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t.Parallel()
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r := New("test",
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new(http.Client),
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WithLimiter(&globalshell))
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ctx := context.Background()
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err := r.SendPayload(ctx, &Item{})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "invalid path") {
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t.Fatal(err)
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}
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err = r.SendPayload(ctx, &Item{Method: http.MethodGet})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "invalid path") {
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t.Fatal(err)
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}
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// Invalid/missing endpoint limit
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "cannot execute functionality") {
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t.Fatal(err)
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}
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// force debug
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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HTTPDebugging: true,
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Verbose: true,
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})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "cannot execute functionality") {
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t.Fatal(err)
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}
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// max request job ceiling
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r.jobs = MaxRequestJobs
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Endpoint: UnAuth,
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})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "max request jobs reached") {
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t.Fatal(err)
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}
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// reset jobs
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r.jobs = 0
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// timeout checker
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r.HTTPClient.Timeout = time.Millisecond * 50
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL + "/timeout",
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Endpoint: UnAuth,
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})
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if err == nil {
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t.Fatal(unexpected)
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}
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if !strings.Contains(err.Error(), "failed to retry request") {
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t.Fatal(err)
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}
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// reset timeout
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r.HTTPClient.Timeout = 0
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// Check JSON
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var resp struct {
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Response bool `json:"response"`
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}
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// Check header contents
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var passback = http.Header{}
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Result: &resp,
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Endpoint: UnAuth,
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HeaderResponse: &passback,
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})
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if err != nil {
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t.Fatal(err)
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}
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if !resp.Response {
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t.Fatal(unexpected)
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}
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if passback.Get("Content-Length") != "17" {
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t.Fatal("incorrect header value")
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}
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if passback.Get("Content-Type") != "application/json" {
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t.Fatal("incorrect header value")
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}
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// Check error
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var respErr struct {
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Error bool `json:"error"`
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}
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Result: &respErr,
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Endpoint: UnAuth,
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})
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if err != nil {
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t.Fatal(err)
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}
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if !resp.Response {
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t.Fatal(unexpected)
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}
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// Check client side rate limit
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var failed int32
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var wg sync.WaitGroup
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wg.Add(5)
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for i := 0; i < 5; i++ {
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go func(wg *sync.WaitGroup) {
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var resp struct {
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Response bool `json:"response"`
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}
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payloadError := r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL + "/rate",
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Result: &resp,
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AuthRequest: true,
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Endpoint: Auth,
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})
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wg.Done()
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if payloadError != nil {
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atomic.StoreInt32(&failed, 1)
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log.Fatal(payloadError)
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}
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if !resp.Response {
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atomic.StoreInt32(&failed, 1)
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log.Fatal(unexpected)
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}
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}(&wg)
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}
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wg.Wait()
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if failed != 0 {
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t.Fatal("request failed")
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}
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}
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func TestDoRequest_Retries(t *testing.T) {
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t.Parallel()
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backoff := func(n int) time.Duration {
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return 0
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}
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r := New("test", new(http.Client), WithBackoff(backoff))
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var failed int32
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var wg sync.WaitGroup
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wg.Add(4)
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for i := 0; i < 4; i++ {
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go func(wg *sync.WaitGroup) {
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defer wg.Done()
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var resp struct {
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Response bool `json:"response"`
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}
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payloadError := r.SendPayload(context.Background(), &Item{
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Method: http.MethodGet,
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Path: testURL + "/rate-retry",
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Result: &resp,
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AuthRequest: true,
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Endpoint: Auth,
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})
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if payloadError != nil {
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atomic.StoreInt32(&failed, 1)
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log.Fatal(payloadError)
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}
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if !resp.Response {
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atomic.StoreInt32(&failed, 1)
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log.Fatal(unexpected)
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}
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}(&wg)
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}
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wg.Wait()
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if failed != 0 {
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t.Fatal("request failed")
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}
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}
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func TestDoRequest_RetryNonRecoverable(t *testing.T) {
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t.Parallel()
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backoff := func(n int) time.Duration {
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return 0
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}
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r := New("test", new(http.Client), WithBackoff(backoff))
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payloadError := r.SendPayload(context.Background(), &Item{
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Method: http.MethodGet,
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Path: testURL + "/always-retry",
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})
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if payloadError == nil {
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t.Fatal("expected an error")
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}
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}
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func TestDoRequest_NotRetryable(t *testing.T) {
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t.Parallel()
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retry := func(resp *http.Response, err error) (bool, error) {
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return false, errors.New("not retryable")
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}
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backoff := func(n int) time.Duration {
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return time.Duration(n) * time.Millisecond
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}
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r := New("test", new(http.Client), WithRetryPolicy(retry), WithBackoff(backoff))
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payloadError := r.SendPayload(context.Background(), &Item{
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Method: http.MethodGet,
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Path: testURL + "/always-retry",
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})
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if payloadError == nil {
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t.Fatal("expected an error")
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}
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}
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func TestGetNonce(t *testing.T) {
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t.Parallel()
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r := New("test",
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new(http.Client),
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WithLimiter(&globalshell))
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n1 := r.GetNonce(false)
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n2 := r.GetNonce(false)
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if n1 == n2 {
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t.Fatal(unexpected)
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}
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r2 := New("test",
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new(http.Client),
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WithLimiter(&globalshell))
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n3 := r2.GetNonce(true)
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n4 := r2.GetNonce(true)
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if n3 == n4 {
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t.Fatal(unexpected)
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}
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}
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func TestGetNonceMillis(t *testing.T) {
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t.Parallel()
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r := New("test",
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new(http.Client),
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WithLimiter(&globalshell))
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m1 := r.GetNonceMilli()
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m2 := r.GetNonceMilli()
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if m1 == m2 {
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log.Fatal(unexpected)
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}
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}
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func TestSetProxy(t *testing.T) {
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t.Parallel()
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r := New("test",
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new(http.Client),
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WithLimiter(&globalshell))
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u, err := url.Parse("http://www.google.com")
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if err != nil {
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t.Fatal(err)
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}
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err = r.SetProxy(u)
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if err != nil {
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t.Fatal(err)
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}
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u, err = url.Parse("")
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if err != nil {
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t.Fatal(err)
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}
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err = r.SetProxy(u)
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if err == nil {
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t.Fatal("error cannot be nil")
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}
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}
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func TestBasicLimiter(t *testing.T) {
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r := New("test",
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new(http.Client),
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WithLimiter(NewBasicRateLimit(time.Second, 1)))
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i := Item{
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Path: "http://www.google.com",
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Method: http.MethodGet,
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}
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ctx := context.Background()
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tn := time.Now()
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_ = r.SendPayload(ctx, &i)
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_ = r.SendPayload(ctx, &i)
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if time.Since(tn) < time.Second {
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t.Error("rate limit issues")
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}
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}
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func TestEnableDisableRateLimit(t *testing.T) {
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r := New("TestRequest",
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new(http.Client),
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WithLimiter(NewBasicRateLimit(time.Minute, 1)))
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ctx := context.Background()
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var resp interface{}
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err := r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Result: &resp,
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AuthRequest: true,
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Endpoint: Auth,
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})
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if err != nil {
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t.Fatal(err)
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}
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err = r.EnableRateLimiter()
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if err == nil {
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t.Fatal("error cannot be nil")
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}
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err = r.DisableRateLimiter()
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if err != nil {
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t.Fatal(err)
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}
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Result: &resp,
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AuthRequest: true,
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Endpoint: Auth,
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})
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if err != nil {
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t.Fatal(err)
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}
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err = r.DisableRateLimiter()
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if err == nil {
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t.Fatal("error cannot be nil")
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}
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err = r.EnableRateLimiter()
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if err != nil {
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t.Fatal(err)
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}
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ti := time.NewTicker(time.Second)
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c := make(chan struct{})
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go func(c chan struct{}) {
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err = r.SendPayload(ctx, &Item{
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Method: http.MethodGet,
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Path: testURL,
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Result: &resp,
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AuthRequest: true,
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Endpoint: Auth,
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})
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if err != nil {
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log.Fatal(err)
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}
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c <- struct{}{}
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}(c)
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select {
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|
case <-c:
|
|
t.Fatal("rate limiting failure")
|
|
case <-ti.C:
|
|
// Correct test
|
|
}
|
|
}
|