diff --git a/exchanges/gateio/gateio_test.go b/exchanges/gateio/gateio_test.go
index 52800a88339..823d3e639f5 100644
--- a/exchanges/gateio/gateio_test.go
+++ b/exchanges/gateio/gateio_test.go
@@ -2851,7 +2851,30 @@ func TestGetUnifiedAccount(t *testing.T) {
 
 func TestGetSettlementCurrency(t *testing.T) {
 	t.Parallel()
-	t.Error("Not implemented")
+	for _, tt := range []struct {
+		a   asset.Item
+		p   currency.Pair
+		exp currency.Code
+		err error
+	}{
+		{asset.Futures, currency.EMPTYPAIR, currency.EMPTYCODE, asset.ErrNotSupported},
+		{asset.DeliveryFutures, currency.EMPTYPAIR, currency.USDT, nil},
+		{asset.DeliveryFutures, getPair(t, asset.DeliveryFutures), currency.USDT, nil},
+		{asset.USDTMarginedFutures, currency.EMPTYPAIR, currency.USDT, nil},
+		{asset.USDTMarginedFutures, getPair(t, asset.USDTMarginedFutures), currency.USDT, nil},
+		{asset.USDTMarginedFutures, getPair(t, asset.CoinMarginedFutures), currency.EMPTYCODE, errInvalidSettlementQuote},
+		{asset.CoinMarginedFutures, currency.EMPTYPAIR, currency.BTC, nil},
+		{asset.CoinMarginedFutures, getPair(t, asset.CoinMarginedFutures), currency.BTC, nil},
+		{asset.CoinMarginedFutures, getPair(t, asset.USDTMarginedFutures), currency.EMPTYCODE, errInvalidSettlementBase},
+	} {
+		c, err := getSettlementCurrency(tt.a, tt.p)
+		if tt.err == nil {
+			require.NoErrorf(t, err, "getSettlementCurrency must not error for %s %s", tt.a, tt.p)
+		} else {
+			assert.ErrorIsf(t, err, tt.err, "getSettlementCurrency should return correct error for %s %s", tt.a, tt.p)
+		}
+		assert.Equalf(t, tt.exp, c, "getSettlementCurrency should return correct settlement currency for %s %s", tt.a, tt.p)
+	}
 }
 
 func TestGenerateWebsocketMessageID(t *testing.T) {