from __future__ import annotations
import pytest
from charset_normalizer import CharsetMatch
from charset_normalizer.utils import any_specified_encoding
@pytest.mark.parametrize(
"payload, expected_encoding",
[
(b'', "euc_jp"),
(b'', "utf_8"),
(b'', None),
(b"# coding: utf-8", "utf_8"),
(b'', "utf_8"),
(b'', "ascii"),
(b'', "johab"),
(b'', "cp037"),
(b"", "cp1252"),
(b'', "cp1256"),
],
)
def test_detect_most_common_body_encoding(payload, expected_encoding):
specified_encoding = any_specified_encoding(payload)
assert (
specified_encoding == expected_encoding
), "Unable to determine properly encoding from given body"
@pytest.mark.parametrize(
"payload, expected_outcome",
[
(
b'',
b'',
),
(
b'',
b'',
),
(
b'',
b'',
),
(b"# coding: utf-8", b"# coding: utf-8"),
(
b'',
b'',
),
(
b'',
b'',
),
(
b'',
b'',
),
(
b"",
b"",
),
(
b'',
b'',
),
],
)
def test_preemptive_mark_replacement(payload, expected_outcome):
"""
When generating (to Unicode converted) bytes, we want to change any potential declarative charset
to utf-8. This test that.
"""
specified_encoding = any_specified_encoding(payload)
detected_encoding = (
specified_encoding if specified_encoding is not None else "utf-8"
)
m = CharsetMatch(
payload,
detected_encoding,
0.0,
False,
[],
preemptive_declaration=specified_encoding,
)
transformed_output = m.output()
assert transformed_output == expected_outcome