chore: Fix spelling in tests

Merge https://github.com/google/adk-python/pull/3402

This PR corrects misspellings identified by the [check-spelling action](https://github.com/marketplace/actions/check-spelling)

Note: while I use tooling to identify errors, the tooling doesn't _actually_ provide the corrections, I'm picking them on my own. I'm a human, and I may make mistakes.

### Testing Plan

The misspellings have been reported at https://github.com/jsoref/adk-python/actions/runs/19056081305/attempts/1#summary-54426435973

The action reports that the changes in this PR would make it happy: https://github.com/jsoref/adk-python/actions/runs/19056081446/attempts/1#summary-54426436321

**Unit Tests:**

- [ ] I have added or updated unit tests for my change.
- [ ] All unit tests pass locally.

_Please include a summary of passed `pytest` results._

**Manual End-to-End (E2E) Tests:**

_Please provide instructions on how to manually test your changes, including any
necessary setup or configuration. Please provide logs or screenshots to help
reviewers better understand the fix._

### Checklist

- [x] I have read the [CONTRIBUTING.md](https://github.com/google/adk-python/blob/main/CONTRIBUTING.md) document.
- [x] I have performed a self-review of my own code.
- [ ] I have commented my code, particularly in hard-to-understand areas.
- [ ] I have added tests that prove my fix is effective or that my feature works.
- [ ] New and existing unit tests pass locally with my changes.
- [ ] I have manually tested my changes end-to-end.
- [ ] Any dependent changes have been merged and published in downstream modules.

### Additional context

- https://github.com/google/adk-python/pull/3382#issuecomment-3488654110

Co-authored-by: Liang Wu <wuliang@google.com>
COPYBARA_INTEGRATE_REVIEW=https://github.com/google/adk-python/pull/3402 from jsoref:spelling-tests 3cf0439d0584e4557179c25596aadf3b5b7c3fa8
PiperOrigin-RevId: 829035089

tests/integration/fixture/trip_planner_agent/trip_inquiry_multi_turn.test.json

@@ -89,7 +89,7 @@
               {
                 "id": null,
                 "args": {
-                  "agent_name": "indentify_agent"
+                  "agent_name": "identify_agent"
                 },
                 "name": "transfer_to_agent"
               }

tests/unittests/agents/test_remote_a2a_agent.py

@@ -697,7 +697,7 @@ class TestRemoteA2aAgentMessageHandling:
 
   @pytest.mark.asyncio
   async def test_handle_a2a_response_with_task_completed_and_no_update(self):
-    """Test successful A2A response handling with non-streeaming task and no update."""
+    """Test successful A2A response handling with non-streaming task and no update."""
     mock_a2a_task = Mock(spec=A2ATask)
     mock_a2a_task.id = "task-123"
     mock_a2a_task.context_id = "context-123"
@@ -1149,7 +1149,7 @@ class TestRemoteA2aAgentMessageHandlingFromFactory:
 
   @pytest.mark.asyncio
   async def test_handle_a2a_response_with_task_completed_and_no_update(self):
-    """Test successful A2A response handling with non-streeaming task and no update."""
+    """Test successful A2A response handling with non-streaming task and no update."""
     mock_a2a_task = Mock(spec=A2ATask)
     mock_a2a_task.id = "task-123"
     mock_a2a_task.context_id = "context-123"

tests/unittests/cli/test_fast_api.py

@@ -700,7 +700,7 @@ def test_update_session(test_app, create_test_session):
 
 
 def test_patch_session_not_found(test_app, test_session_info):
-  """Test patching a non-existent session."""
+  """Test patching a nonexistent session."""
   info = test_session_info
   url = f"/apps/{info['app_name']}/users/{info['user_id']}/sessions/nonexistent"
 

tests/unittests/cli/utils/test_agent_loader.py

@@ -731,7 +731,7 @@ class TestAgentLoader:
 
         loader = AgentLoader(str(regular_agents_dir))
 
-        # Try to load non-existent special agent
+        # Try to load nonexistent special agent
         with pytest.raises(ValueError) as exc_info:
           loader.load_agent("__nonexistent_special")
 

tests/unittests/code_executors/test_agent_engine_sandbox_code_executor.py

@@ -46,7 +46,7 @@ class TestAgentEngineSandboxCodeExecutor:
     """Tests that class attributes can be overridden at instantiation."""
     with pytest.raises(ValueError):
       AgentEngineSandboxCodeExecutor(
-          sandbox_resource_name="projects/123/locations/us-central1/reasoningEgines/456/sandboxes/789",
+          sandbox_resource_name="projects/123/locations/us-central1/reasoningEngines/456/sandboxes/789",
       )
 
   def test_init_with_agent_engine_overrides_throws_error(self):

tests/unittests/evaluation/test_hallucinations_v1.py

@@ -105,7 +105,7 @@ class TestParseSentences:
     """Tests _parse_sentences method with sentences containing newlines."""
     text_with_newlines = """<sentence>This is a sentence with
 \n\nnewlines.</sentence>
-<sentence>This sentence will not be parsed</stenence>"""
+<sentence>This sentence won't be parsed because tag is misspelled</stenence>"""
     assert _parse_sentences(text_with_newlines) == [
         "This is a sentence with\n\n\nnewlines."
     ]

tests/unittests/telemetry/test_functional.py

@@ -93,7 +93,7 @@ async def test_tracer_start_as_current_span(
 
   Additionally tests if each async generator invoked is wrapped in Aclosing.
   This is necessary because instrumentation utilizes contextvars, which ran into "ContextVar was created in a different Context" errors,
-  when a given coroutine gets indeterminitely suspended.
+  when a given coroutine gets indeterminately suspended.
   """
   firstiter, finalizer = sys.get_asyncgen_hooks()
 

tests/unittests/tools/openapi_tool/openapi_spec_parser/test.yaml

@@ -634,7 +634,7 @@ components:
         requestId:
           description: |-
             The client-generated unique ID for this request.
-            Clients should regenerate this ID for every new request. If an ID provided is the same as for the previous request, the request is ignored.
+            Clients should regenerate this ID for every new request. If an ID provided is the same as the previous request, the request is ignored.
           type: string
         status:
           $ref: "#/components/schemas/ConferenceRequestStatus"

tests/unittests/tools/test_base_google_credentials_manager.py

@@ -107,7 +107,7 @@ class TestGoogleCredentialsManager:
     """Test that existing non-oauth credentials are returned immediately.
 
     When credentials are of non-oauth type, no refresh or OAuth flow
-    is triggered irrespective of whether it is valid or not.
+    is triggered irrespective of whether or not it is valid.
     """
     # Create mock credentials that are already valid
     mock_creds = Mock(spec=AuthCredentials)