hermes-agent/tests/run_agent/test_unicode_ascii_codec.py

140 lines
5.2 KiB
Python

"""Tests for UnicodeEncodeError recovery with ASCII codec.
Covers the fix for issue #6843 — systems with ASCII locale (LANG=C)
that can't encode non-ASCII characters in API request payloads.
"""
import pytest
from run_agent import (
_strip_non_ascii,
_sanitize_messages_non_ascii,
_sanitize_messages_surrogates,
)
class TestStripNonAscii:
"""Tests for _strip_non_ascii helper."""
def test_ascii_only(self):
assert _strip_non_ascii("hello world") == "hello world"
def test_removes_non_ascii(self):
assert _strip_non_ascii("hello ⚕ world") == "hello world"
def test_removes_emoji(self):
assert _strip_non_ascii("test 🤖 done") == "test done"
def test_chinese_chars(self):
assert _strip_non_ascii("你好world") == "world"
def test_empty_string(self):
assert _strip_non_ascii("") == ""
def test_only_non_ascii(self):
assert _strip_non_ascii("⚕🤖") == ""
class TestSanitizeMessagesNonAscii:
"""Tests for _sanitize_messages_non_ascii."""
def test_no_change_ascii_only(self):
messages = [{"role": "user", "content": "hello"}]
assert _sanitize_messages_non_ascii(messages) is False
assert messages[0]["content"] == "hello"
def test_sanitizes_content_string(self):
messages = [{"role": "user", "content": "hello ⚕ world"}]
assert _sanitize_messages_non_ascii(messages) is True
assert messages[0]["content"] == "hello world"
def test_sanitizes_content_list(self):
messages = [{
"role": "user",
"content": [{"type": "text", "text": "hello 🤖"}]
}]
assert _sanitize_messages_non_ascii(messages) is True
assert messages[0]["content"][0]["text"] == "hello "
def test_sanitizes_name_field(self):
messages = [{"role": "tool", "name": "⚕tool", "content": "ok"}]
assert _sanitize_messages_non_ascii(messages) is True
assert messages[0]["name"] == "tool"
def test_sanitizes_tool_calls(self):
messages = [{
"role": "assistant",
"content": None,
"tool_calls": [{
"id": "call_1",
"type": "function",
"function": {
"name": "read_file",
"arguments": '{"path": "⚕test.txt"}'
}
}]
}]
assert _sanitize_messages_non_ascii(messages) is True
assert messages[0]["tool_calls"][0]["function"]["arguments"] == '{"path": "test.txt"}'
def test_handles_non_dict_messages(self):
messages = ["not a dict", {"role": "user", "content": "hello"}]
assert _sanitize_messages_non_ascii(messages) is False
def test_empty_messages(self):
assert _sanitize_messages_non_ascii([]) is False
def test_multiple_messages(self):
messages = [
{"role": "system", "content": "⚕ System prompt"},
{"role": "user", "content": "Hello 你好"},
{"role": "assistant", "content": "Hi there!"},
]
assert _sanitize_messages_non_ascii(messages) is True
assert messages[0]["content"] == " System prompt"
assert messages[1]["content"] == "Hello "
assert messages[2]["content"] == "Hi there!"
class TestSurrogateVsAsciiSanitization:
"""Test that surrogate and ASCII sanitization work independently."""
def test_surrogates_still_handled(self):
"""Surrogates are caught by _sanitize_messages_surrogates, not _non_ascii."""
msg_with_surrogate = "test \ud800 end"
messages = [{"role": "user", "content": msg_with_surrogate}]
assert _sanitize_messages_surrogates(messages) is True
assert "\ud800" not in messages[0]["content"]
assert "\ufffd" in messages[0]["content"]
def test_surrogates_in_name_and_tool_calls_are_sanitized(self):
messages = [{
"role": "assistant",
"name": "bad\ud800name",
"content": None,
"tool_calls": [{
"id": "call_\ud800",
"type": "function",
"function": {
"name": "read\ud800_file",
"arguments": '{"path": "bad\ud800.txt"}'
}
}],
}]
assert _sanitize_messages_surrogates(messages) is True
assert "\ud800" not in messages[0]["name"]
assert "\ud800" not in messages[0]["tool_calls"][0]["id"]
assert "\ud800" not in messages[0]["tool_calls"][0]["function"]["name"]
assert "\ud800" not in messages[0]["tool_calls"][0]["function"]["arguments"]
def test_ascii_codec_strips_all_non_ascii(self):
"""ASCII codec case: all non-ASCII is stripped, not replaced."""
messages = [{"role": "user", "content": "test ⚕🤖你好 end"}]
assert _sanitize_messages_non_ascii(messages) is True
# All non-ASCII chars removed; spaces around them collapse
assert messages[0]["content"] == "test end"
def test_no_surrogates_returns_false(self):
"""When no surrogates present, _sanitize_messages_surrogates returns False."""
messages = [{"role": "user", "content": "hello ⚕ world"}]
assert _sanitize_messages_surrogates(messages) is False