standard-tests[patch]: update groq and structured output test (#24781)

- Mixtral with Groq has started consistently failing tool calling tests.
Here we restrict testing to llama 3.1.
- `.schema` is deprecated in pydantic proper in favor of
`.model_json_schema`.

libs/partners/groq/tests/integration_tests/test_standard.py

@@ -4,12 +4,15 @@ from typing import Type
 
 import pytest
 from langchain_core.language_models import BaseChatModel
-from langchain_standard_tests.integration_tests import (  # type: ignore[import-not-found]
-    ChatModelIntegrationTests,  # type: ignore[import-not-found]
+from langchain_core.rate_limiters import InMemoryRateLimiter
+from langchain_standard_tests.integration_tests import (
+    ChatModelIntegrationTests,
 )
 
 from langchain_groq import ChatGroq
 
+rate_limiter = InMemoryRateLimiter(requests_per_second=0.45)
+
 
 class BaseTestGroq(ChatModelIntegrationTests):
     @property
@@ -21,32 +24,13 @@ class BaseTestGroq(ChatModelIntegrationTests):
         super().test_tool_message_histories_list_content(model)
 
 
-class TestGroqMixtral(BaseTestGroq):
-    @property
-    def chat_model_params(self) -> dict:
-        return {
-            "temperature": 0,
-        }
-
-    @pytest.mark.xfail(
-        reason=("Fails with 'Failed to call a function. Please adjust your prompt.'")
-    )
-    def test_structured_output(self, model: BaseChatModel) -> None:
-        super().test_structured_output(model)
-
-    @pytest.mark.xfail(
-        reason=("May pass arguments: {'properties': {}, 'type': 'object'}")
-    )
-    def test_tool_calling_with_no_arguments(self, model: BaseChatModel) -> None:
-        super().test_tool_calling_with_no_arguments(model)
-
-
 class TestGroqLlama(BaseTestGroq):
     @property
     def chat_model_params(self) -> dict:
         return {
-            "model": "llama3-8b-8192",
+            "model": "llama-3.1-8b-instant",
             "temperature": 0,
+            "rate_limiter": rate_limiter,
         }
 
     @pytest.mark.xfail(

libs/standard-tests/langchain_standard_tests/integration_tests/chat_models.py

@@ -237,7 +237,7 @@ class ChatModelIntegrationTests(ChatModelTests):
             assert isinstance(chunk, Joke)
 
         # Schema
-        chat = model.with_structured_output(Joke.schema())
+        chat = model.with_structured_output(Joke.model_json_schema())
         result = chat.invoke("Tell me a joke about cats.")
         assert isinstance(result, dict)
         assert set(result.keys()) == {"setup", "punchline"}