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sglang/sgl-router/py_test/e2e_response_api/mixins/structured_output.py

102 lines
3.6 KiB
Python

"""
Structured output tests for Response API.
Tests for text.format field with json_object and json_schema formats.
"""
import json
import sys
from pathlib import Path
# Add current directory for local imports
_TEST_DIR = Path(__file__).parent
sys.path.insert(0, str(_TEST_DIR))
from basic_crud import ResponseAPIBaseTest
class StructuredOutputBaseTest(ResponseAPIBaseTest):
def test_structured_output_json_schema(self):
"""Test structured output with json_schema format."""
# Create response with structured output
params = {
"input": [
{
"role": "system",
"content": "You are a helpful math tutor. Guide the user through the solution step by step.",
},
{"role": "user", "content": "how can I solve 8x + 7 = -23"},
],
"text": {
"format": {
"type": "json_schema",
"name": "math_reasoning",
"schema": {
"type": "object",
"properties": {
"steps": {
"type": "array",
"items": {
"type": "object",
"properties": {
"explanation": {"type": "string"},
"output": {"type": "string"},
},
"required": ["explanation", "output"],
"additionalProperties": False,
},
},
"final_answer": {"type": "string"},
},
"required": ["steps", "final_answer"],
"additionalProperties": False,
},
"strict": True,
}
},
}
create_resp = self.create_response(**params)
self.assertIsNone(create_resp.error)
self.assertIsNotNone(create_resp.id)
self.assertIsNotNone(create_resp.output)
self.assertIsNotNone(create_resp.text)
# Verify text format was echoed back correctly
self.assertIsNotNone(create_resp.text.format)
self.assertEqual(create_resp.text.format.type, "json_schema")
self.assertEqual(create_resp.text.format.name, "math_reasoning")
self.assertIsNotNone(create_resp.text.format.schema_)
self.assertEqual(create_resp.text.format.strict, True)
# Find the message output (output[0] may be reasoning, output[1] is message)
output_text = next(
(
content.text
for item in create_resp.output
if item.type == "message"
for content in item.content
if content.type == "output_text"
),
None,
)
self.assertIsNotNone(output_text, "No output_text found in response")
self.assertTrue(output_text.strip(), "output_text is empty")
# Parse JSON output
output_json = json.loads(output_text)
# Verify schema structure
self.assertIn("steps", output_json)
self.assertIn("final_answer", output_json)
self.assertIsInstance(output_json["steps"], list)
self.assertGreater(len(output_json["steps"]), 0)
# Verify each step has required fields
for step in output_json["steps"]:
self.assertIn("explanation", step)
self.assertIn("output", step)