test: add ccxt parse test for kraken

part of freqtrade#12326

Author: xmatthias

tests/exchange_online/conftest.py

@@ -153,6 +153,8 @@
                     "ADA.F": {"balance": "2.00000000", "hold_trade": "0.00000000"},
                     "XBT": {"balance": "0.00060000", "hold_trade": "0.00000000"},
                     "XBT.F": {"balance": "0.00100000", "hold_trade": "0.00000000"},
+                    "ZEUR": {"balance": "1000.00000000", "hold_trade": "0.00000000"},
+                    "ZUSD": {"balance": "1000.00000000", "hold_trade": "0.00000000"},
                 }
             },
             "expected": {
@@ -161,6 +163,8 @@
                 "BTC": {"free": 0.0006, "total": 0.0006, "used": 0.0},
                 # XBT.F should be mapped to BTC.F
                 "BTC.F": {"free": 0.001, "total": 0.001, "used": 0.0},
+                "EUR": {"free": 1000.0, "total": 1000.0, "used": 0.0},
+                "USD": {"free": 1000.0, "total": 1000.0, "used": 0.0},
             },
         },
     },