Files
vllm/tests/tool_parsers/test_longcat_tool_parser.py
2026-03-16 19:46:20 -04:00

102 lines
3.6 KiB
Python

# SPDX-License-Identifier: Apache-2.0
# SPDX-FileCopyrightText: Copyright contributors to the vLLM project
from unittest.mock import MagicMock
import pytest
from tests.tool_parsers.common_tests import (
ToolParserTestConfig,
ToolParserTests,
)
from vllm.tokenizers import TokenizerLike
class TestLongCatToolParser(ToolParserTests):
@pytest.fixture
def tokenizer(self, default_tokenizer: TokenizerLike) -> TokenizerLike:
"""Add some longcat specific tokens to the default vocab."""
tokenizer = default_tokenizer
tokenizer_vocab = tokenizer.get_vocab()
tokenizer.get_vocab = MagicMock()
tokenizer_vocab.update(
{
"<longcat_tool_call>": 32000,
"</longcat_tool_call>": 32001,
}
)
tokenizer.get_vocab.return_value = tokenizer_vocab
return tokenizer
@pytest.fixture
def test_config(self) -> ToolParserTestConfig:
return ToolParserTestConfig(
parser_name="longcat",
# Test data
no_tool_calls_output="This is a regular response without any tool calls.",
single_tool_call_output=(
'<longcat_tool_call>{"name": "get_weather", '
'"arguments": {"city": "Tokyo"}}</longcat_tool_call>'
),
parallel_tool_calls_output=(
'<longcat_tool_call>{"name": "get_weather", '
'"arguments": {"city": "Tokyo"}}</longcat_tool_call>\n'
'<longcat_tool_call>{"name": "get_time", '
'"arguments": {"timezone": "Asia/Tokyo"}}</longcat_tool_call>'
),
various_data_types_output="""<longcat_tool_call>{
"name": "test_function",
"arguments": {
"string_field": "hello",
"int_field": 42,
"float_field": 3.14,
"bool_field": true,
"null_field": null,
"array_field": ["a", "b", "c"],
"object_field": {"nested": "value"},
"empty_array": [],
"empty_object": {}
}
}</longcat_tool_call>""",
empty_arguments_output=(
'<longcat_tool_call>{"name": "refresh", "arguments": {}}'
"</longcat_tool_call>"
),
surrounding_text_output=(
"Let me check the weather for you.\n"
'<longcat_tool_call>{"name": "get_weather", '
'"arguments": {"city": "Tokyo"}}</longcat_tool_call>\n'
"Here is the result."
),
escaped_strings_output="""<longcat_tool_call>{
"name": "test_function",
"arguments": {
"quoted": "He said \\"hello\\"",
"path": "C:\\\\Users\\\\file.txt",
"newline": "line1\\nline2",
"unicode": "emoji: 🎉"
}
}</longcat_tool_call>""",
malformed_input_outputs=[
'<longcat_tool_call>{"name": "func", "arguments": {',
(
'<longcat_tool_call>{"name": "func", '
'"arguments": "not a dict"}</longcat_tool_call>'
),
"Some text with <longcat_tool_call>invalid json",
],
# Expected results
single_tool_call_expected_name="get_weather",
single_tool_call_expected_args={"city": "Tokyo"},
single_tool_call_expected_content=None,
parallel_tool_calls_count=2,
parallel_tool_calls_names=["get_weather", "get_time"],
# xfail markers
xfail_streaming={
"test_malformed_input": "Streaming has complex buffering behavior",
},
xfail_nonstreaming={},
# Configuration
allow_empty_or_json_empty_args=True,
)