langchain/libs/partners/google-vertexai/tests/integration_tests/test_embeddings.py

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"""Test Vertex AI API wrapper.
Your end-user credentials would be used to make the calls (make sure you've run
`gcloud auth login` first).
"""
import pytest
from langchain_google_vertexai.embeddings import VertexAIEmbeddings
def test_initialization() -> None:
"""Test embedding model initialization."""
VertexAIEmbeddings()
def test_langchain_google_vertexai_embedding_documents() -> None:
documents = ["foo bar"]
model = VertexAIEmbeddings()
output = model.embed_documents(documents)
assert len(output) == 1
assert len(output[0]) == 768
assert model.model_name == model.client._model_id
assert model.model_name == "textembedding-gecko@001"
def test_langchain_google_vertexai_embedding_query() -> None:
document = "foo bar"
model = VertexAIEmbeddings()
output = model.embed_query(document)
assert len(output) == 768
def test_langchain_google_vertexai_large_batches() -> None:
documents = ["foo bar" for _ in range(0, 251)]
model_uscentral1 = VertexAIEmbeddings(location="us-central1")
model_asianortheast1 = VertexAIEmbeddings(location="asia-northeast1")
model_uscentral1.embed_documents(documents)
model_asianortheast1.embed_documents(documents)
assert model_uscentral1.instance["batch_size"] >= 250
assert model_asianortheast1.instance["batch_size"] < 50
def test_langchain_google_vertexai_paginated_texts() -> None:
documents = [
"foo bar",
"foo baz",
"bar foo",
"baz foo",
"bar bar",
"foo foo",
"baz baz",
"baz bar",
]
model = VertexAIEmbeddings()
output = model.embed_documents(documents)
assert len(output) == 8
assert len(output[0]) == 768
assert model.model_name == model.client._model_id
def test_warning(caplog: pytest.LogCaptureFixture) -> None:
_ = VertexAIEmbeddings()
assert len(caplog.records) == 1
record = caplog.records[0]
assert record.levelname == "WARNING"
expected_message = (
"Model_name will become a required arg for VertexAIEmbeddings starting from "
"Feb-01-2024. Currently the default is set to textembedding-gecko@001"
)
assert record.message == expected_message