fix: response for wrong filter directions can now be unmarshaled (#1037)

pkg/controllers/v4/transaction.go

@@ -227,6 +227,7 @@ func GetTransactions(c *gin.Context) {
 			c.JSON(http.StatusBadRequest, TransactionListResponse{
 				Error: &s,
 			})
+			return
 		}
 
 		if filter.Direction == DirectionTransfer {

pkg/controllers/v4/transaction_test.go

@@ -309,6 +309,12 @@ func (suite *TestSuiteStandard) TestTransactionsGetInvalidQuery() {
 		suite.T().Run(tt, func(t *testing.T) {
 			recorder := test.Request(t, http.MethodGet, fmt.Sprintf("http://example.com/v4/transactions?%s", tt), "")
 			test.AssertHTTPStatus(t, &recorder, http.StatusBadRequest)
+
+			var body v4.TransactionListResponse
+			test.DecodeResponse(t, &recorder, &body)
+
+			assert.Len(t, body.Data, 0)
+			assert.NotEmpty(t, body.Error)
 		})
 	}
 }

test/request.go

@@ -68,7 +68,7 @@ func Request(t *testing.T, method, reqURL string, body any, headers ...map[strin
 
 // DecodeResponse decodes an HTTP response into a target struct.
 func DecodeResponse(t *testing.T, r *httptest.ResponseRecorder, target any) {
-	err := json.NewDecoder(r.Body).Decode(target)
+	err := json.Unmarshal(r.Body.Bytes(), &target)
 	if err != nil {
 		assert.FailNow(t, "Parsing error", "Unable to parse response from server %q into %v, '%v', Request ID: %s", r.Body, reflect.TypeOf(target), err, r.Result().Header.Get("x-request-id"))
 	}