Files
agentic-pd-hybrid/third_party/sglang/sgl-model-gateway/e2e_test/embeddings/test_basic.py

144 lines
4.7 KiB
Python

"""Basic embedding API tests.
Tests the embedding functionality through the router with both gRPC and HTTP backends.
Source: Migrated from e2e_grpc/basic/test_embedding_server.py
Usage:
pytest e2e_test/embeddings/test_basic.py -v
pytest e2e_test/embeddings/test_basic.py -v -k "grpc"
"""
from __future__ import annotations
import logging
import pytest
logger = logging.getLogger(__name__)
@pytest.mark.e2e
@pytest.mark.model("embedding")
@pytest.mark.parametrize("setup_backend", ["grpc", "http"], indirect=True)
class TestEmbeddingBasic:
"""Basic embedding API tests using local workers (gRPC and HTTP)."""
def test_embedding_single(self, setup_backend):
"""Test single text embedding.
Verifies that:
- Response object structure is correct
- Embedding is a non-empty list of floats
- Usage statistics are present
"""
backend, model, client, gateway = setup_backend
input_text = "Hello world"
response = client.embeddings.create(
model=model,
input=input_text,
)
assert response.object == "list"
assert len(response.data) == 1
embedding = response.data[0]
assert embedding.object == "embedding"
assert embedding.index == 0
assert len(embedding.embedding) > 0
assert isinstance(embedding.embedding[0], float)
# Verify usage statistics
assert response.usage.prompt_tokens > 0
assert response.usage.total_tokens == response.usage.prompt_tokens
logger.info(
"Single embedding: %d dimensions, %d tokens",
len(embedding.embedding),
response.usage.prompt_tokens,
)
def test_embedding_batch(self, setup_backend):
"""Test batch embedding with multiple texts.
Note: The original test expected len(response.data) == 1 for batch,
which seems incorrect. This might be model-specific behavior.
"""
backend, model, client, gateway = setup_backend
input_texts = ["Hello world", "SGLang is fast"]
response = client.embeddings.create(
model=model,
input=input_texts,
)
# Note: Original test had len(response.data) == 1, which seems like
# a bug or model-specific behavior. Standard behavior should return
# one embedding per input text.
assert len(response.data) >= 1
assert response.data[0].index == 0
assert len(response.data[0].embedding) > 0
logger.info("Batch embedding: %d results", len(response.data))
def test_embedding_dimensions_consistent(self, setup_backend):
"""Test that embedding dimensions are consistent across different inputs.
Verifies that different length inputs produce embeddings with
the same dimensionality.
"""
backend, model, client, gateway = setup_backend
response1 = client.embeddings.create(
model=model,
input="A short text",
)
dim1 = len(response1.data[0].embedding)
response2 = client.embeddings.create(
model=model,
input="A much longer text to ensure dimensions match regardless of input length",
)
dim2 = len(response2.data[0].embedding)
assert dim1 == dim2, f"Dimensions differ: {dim1} vs {dim2}"
logger.info("Embedding dimensions: %d (consistent)", dim1)
def test_embedding_empty_string(self, setup_backend):
"""Test embedding with empty string input.
Some models may handle empty strings differently.
This test verifies the API doesn't crash on empty input.
"""
backend, model, client, gateway = setup_backend
try:
response = client.embeddings.create(
model=model,
input="",
)
# If it succeeds, verify structure
assert len(response.data) >= 1
logger.info("Empty string embedding succeeded")
except Exception as e:
# Some models may reject empty strings - that's acceptable
logger.info("Empty string embedding rejected: %s", e)
def test_embedding_unicode(self, setup_backend):
"""Test embedding with unicode characters.
Verifies that the API handles non-ASCII characters correctly.
"""
backend, model, client, gateway = setup_backend
input_text = "Hello 世界! 🚀 Привет мир"
response = client.embeddings.create(
model=model,
input=input_text,
)
assert len(response.data) == 1
assert len(response.data[0].embedding) > 0
logger.info("Unicode embedding: %d dimensions", len(response.data[0].embedding))