add embeddings integration tests (#25508)

libs/standard-tests/langchain_standard_tests/unit_tests/embeddings.py

@@ -0,0 +1,28 @@
+from abc import abstractmethod
+from typing import Type
+
+import pytest
+from langchain_core.embeddings import Embeddings
+
+from langchain_standard_tests.base import BaseStandardTests
+
+
+class EmbeddingsTests(BaseStandardTests):
+    @property
+    @abstractmethod
+    def embeddings_class(self) -> Type[Embeddings]:
+        ...
+
+    @property
+    def embedding_model_params(self) -> dict:
+        return {}
+
+    @pytest.fixture
+    def model(self) -> Embeddings:
+        return self.embeddings_class(**self.embedding_model_params)
+
+
+class EmbeddingsUnitTests(EmbeddingsTests):
+    def test_init(self) -> None:
+        model = self.embeddings_class(**self.embedding_model_params)
+        assert model is not None