MPT-21554 generate unique e2e currency code avoiding real ISO codes

pyproject.toml

@@ -33,9 +33,9 @@ dev = [
   "freezegun==1.5.*",
   "ipdb==0.13.*",
   "ipython==9.*",
-    "mypy==2.1.*",
+  "mypy==2.1.*",
   "pre-commit==4.6.*",
-    "pyfakefs==6.2.*",
+  "pyfakefs==6.2.*",
   "pytest==9.1.*",
   "pytest-asyncio==1.4.*",
   "pytest-cov==7.1.*",
@@ -46,11 +46,12 @@ dev = [
   "pytest-rerunfailures==16.3.*",
   "pytest-xdist==3.8.*",
   "responses==0.26.*",
-    "respx==0.23.*",
+  "respx==0.23.*",
   "ruff==0.15.*", # force ruff version to have same formatting everywhere
   "typing-extensions==4.15.*",
   "wemake-python-styleguide==1.6.*",
   "types-python-dateutil==2.9.*",
+  "iso4217==1.16.*",
 ]
 
 [tool.hatch.build.targets.sdist]

tests/e2e/exchange/currencies/conftest.py

@@ -1,9 +1,27 @@
+import logging
+import secrets
 import string
 
 import pytest
+from iso4217 import Currency
 
 from mpt_api_client.exceptions import MPTAPIError
 
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.INFO)
+
+CURRENCY_CODE_LENGTH = 3
+CURRENCY_CODE_ALPHABET = string.ascii_uppercase
+ISO_CURRENCY_CODES = frozenset(currency.code for currency in Currency)
+
+
+def _random_currency_code():
+    while True:
+        letters = (secrets.choice(CURRENCY_CODE_ALPHABET) for _ in range(CURRENCY_CODE_LENGTH))
+        code = "".join(letters)
+        if code not in ISO_CURRENCY_CODES:
+            return code
+
 
 @pytest.fixture
 def currencies_service(mpt_ops):
@@ -22,8 +40,8 @@ def currency_id(e2e_config):
 
 @pytest.fixture
 def currency_data(short_uuid):
-    digit_to_alpha = str.maketrans(string.digits, "GHIJKLMNOP")
-    code = short_uuid[:3].translate(digit_to_alpha).upper()
+    code = _random_currency_code()
+    logger.info("e2e generated currency code: %s", code)
     return {
         "name": f"e2e - please delete {short_uuid}",
         "code": code,
@@ -40,7 +58,7 @@ def created_currency(currencies_service, currency_data, logo_fd):
     try:
         currencies_service.delete(currency.id)
     except MPTAPIError as error:
-        print(f"TEARDOWN - Unable to delete currency {currency.id}: {error.title}")  # noqa: WPS421
+        logger.warning("TEARDOWN - Unable to delete currency %s: %s", currency.id, error.title)
 
 
 @pytest.fixture
@@ -52,4 +70,4 @@ async def async_created_currency(async_currencies_service, currency_data, logo_f
     try:
         await async_currencies_service.delete(currency.id)
     except MPTAPIError as error:
-        print(f"TEARDOWN - Unable to delete currency {currency.id}: {error.title}")  # noqa: WPS421
+        logger.warning("TEARDOWN - Unable to delete currency %s: %s", currency.id, error.title)