cpython/Lib/test/test_tomllib/test_error.py

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# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: 2021 Taneli Hukkinen
# Licensed to PSF under a Contributor Agreement.
import unittest
from . import tomllib
class TestError(unittest.TestCase):
def test_line_and_col(self):
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads("val=.")
self.assertEqual(str(exc_info.exception), "Invalid value (at line 1, column 5)")
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads(".")
self.assertEqual(
str(exc_info.exception), "Invalid statement (at line 1, column 1)"
)
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads("\n\nval=.")
self.assertEqual(str(exc_info.exception), "Invalid value (at line 3, column 5)")
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads("\n\n.")
self.assertEqual(
str(exc_info.exception), "Invalid statement (at line 3, column 1)"
)
def test_missing_value(self):
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads("\n\nfwfw=")
self.assertEqual(str(exc_info.exception), "Invalid value (at end of document)")
def test_invalid_char_quotes(self):
with self.assertRaises(tomllib.TOMLDecodeError) as exc_info:
tomllib.loads("v = '\n'")
self.assertTrue(" '\\n' " in str(exc_info.exception))
def test_module_name(self):
self.assertEqual(tomllib.TOMLDecodeError().__module__, tomllib.__name__)
def test_invalid_parse_float(self):
def dict_returner(s: str) -> dict:
return {}
def list_returner(s: str) -> list:
return []
for invalid_parse_float in (dict_returner, list_returner):
with self.assertRaises(ValueError) as exc_info:
tomllib.loads("f=0.1", parse_float=invalid_parse_float)
self.assertEqual(
str(exc_info.exception), "parse_float must not return dicts or lists"
)