re-introduce test coverage

fiobank.py

@@ -45,7 +45,7 @@ class ThrottlingError(Exception):
     """Throttling error raised when the API is being used too fast."""
 
     def __str__(self) -> str:
-        return "Token can be used only once per 30s."
+        return "Token can be used only once per 30s"
 
 
 class FioBank(object):

pyproject.toml

@@ -25,18 +25,19 @@ repository = "https://github.com/honzajavorek/fiobank"
 
 [dependency-groups]
 dev = [
-    "pytest<8.0.0,>=7.2.1",
-    "responses<1.0.0,>=0.22.0",
-    "mock<6.0.0,>=5.0.1",
-    "ruff<1.0.0,>=0.8.4",
-    "pytest-ruff<1.0.0,>=0.4.1",
+    "mock>=5.0.1",
+    "pytest-cov>=6.0.0",
+    "pytest-ruff>=0.4.1",
+    "pytest>=7.2.1",
+    "responses>=0.22.0",
+    "ruff>=0.8.4",
 ]
 
 [tool.pytest.ini_options]
 pythonpath = ["."]
 testpaths = "tests"
 norecursedirs = "env venv .git"
-addopts = "--ff --ruff --ruff-format"
+addopts = "--ff --ruff --ruff-format --cov=fiobank --cov-report=term-missing:skip-covered --cov-context=test"
 filterwarnings = ["ignore:Using float for money can cause inaccuracies:DeprecationWarning"]
 
 [tool.ruff.lint]