Bitfinex: Test coverage for Unsubscribe errors

gbjk · Oct 1, 2023 · 95ee32b · 95ee32b
1 parent beb8140
commit 95ee32b
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Showing 3 changed files with 15 additions and 4 deletions.
diff --git a/exchanges/bitfinex/bitfinex_test.go b/exchanges/bitfinex/bitfinex_test.go
@@ -5,6 +5,7 @@ import (
 	"errors"
 	"log"
 	"os"
+	"strconv"
 	"sync"
 	"testing"
 	"time"
@@ -1090,7 +1091,7 @@ func TestWsAuth(t *testing.T) {
 func TestWsSubscribe(t *testing.T) {
 	setupWs(t)
 	err := b.Subscribe([]stream.ChannelSubscription{{Channel: wsTicker, Currency: currency.NewPair(currency.BTC, currency.USD), Asset: asset.Spot}})
-	assert.NoError(t, err)
+	assert.NoError(t, err, "Subrcribe should not error")
 	catcher := func() (ok bool) {
 		i := <-b.Websocket.DataHandler
 		_, ok = i.(*ticker.Price)
@@ -1113,9 +1114,17 @@ func TestWsSubscribe(t *testing.T) {
 	assert.Eventually(t, catcher, sharedtestvalues.WebsocketResponseDefaultTimeout, time.Millisecond*10, "error response should arrive")
 
 	subs, err := b.GetSubscriptions()
-	assert.NoError(t, err)
+	assert.NoError(t, err, "GetSubscriptions should not error")
 	err = b.Unsubscribe(subs)
-	assert.NoError(t, err)
+	assert.NoError(t, err, "Unsubscribing should not error")
+
+	chanID, ok := subs[0].Key.(int)
+	assert.True(t, ok, "sub.Key should be an int")
+
+	err = b.Unsubscribe(subs)
+	assert.ErrorIs(t, err, stream.ErrUnsubscribeFailure, "Unsubscribe should error")
+	assert.ErrorContains(t, err, strconv.Itoa(chanID), "Unsubscribe should contain correct chanId")
+	assert.ErrorContains(t, err, "unsubscribe: invalid (code: 10400)", "Unsubscribe should contain correct upstream error")
 
 	err = b.Subscribe([]stream.ChannelSubscription{{
 		Channel:  wsTicker,

diff --git a/exchanges/bitfinex/bitfinex_websocket.go b/exchanges/bitfinex/bitfinex_websocket.go
@@ -1763,7 +1763,7 @@ func (b *Bitfinex) unsubscribeFromChan(c *stream.ChannelSubscription) error {
 	}
 
 	if err := b.getErrResp(respRaw); err != nil {
-		wErr := fmt.Errorf("error unsubscribing from ChanId: %v; %w", chanID, err)
+		wErr := fmt.Errorf("%w from ChanId: %v; %w", stream.ErrUnsubscribeFailure, chanID, err)
 		b.Websocket.DataHandler <- wErr
 		return wErr
 	}

diff --git a/exchanges/stream/websocket.go b/exchanges/stream/websocket.go
@@ -26,6 +26,8 @@ const (
 var (
 	// ErrSubscriptionFailure defines an error when a subscription fails
 	ErrSubscriptionFailure = errors.New("subscription failure")
+	// ErrUnsubscribeFailure defines an error when a unsubscribe fails
+	ErrUnsubscribeFailure = errors.New("unsubscribe failure")
 	// ErrAlreadyDisabled is returned when you double-disable the websocket
 	ErrAlreadyDisabled = errors.New("websocket already disabled")
 	// ErrNotConnected defines an error when websocket is not connected