chore: import upstream snapshot with attribution

tests/unittests/evaluation/test_app_details.py

@@ -0,0 +1,73 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from __future__ import annotations
+
+from google.adk.evaluation.app_details import AgentDetails
+from google.adk.evaluation.app_details import AppDetails
+from google.genai import types as genai_types
+from pytest import raises
+
+
+def test_get_developer_instructions_existing_agent():
+  agent_details = {
+      'agent1': AgentDetails(
+          name='agent1', instructions='instruction for agent1'
+      ),
+      'agent2': AgentDetails(
+          name='agent2', instructions='instruction for agent2'
+      ),
+  }
+  app_details = AppDetails(
+      agent_details=agent_details,
+  )
+
+  # Test for existing agent
+  instructions = app_details.get_developer_instructions('agent1')
+  assert instructions == 'instruction for agent1'
+
+
+def test_get_developer_instructions_non_existing_Agent():
+  agent_details = {
+      'agent1': AgentDetails(
+          name='agent1', instructions='instruction for agent1'
+      ),
+      'agent2': AgentDetails(
+          name='agent2', instructions='instruction for agent2'
+      ),
+  }
+  app_details = AppDetails(
+      agent_details=agent_details,
+  )
+
+  # Test for existing agent
+  with raises(ValueError, match='`agent3` not found in the agentic system.'):
+    app_details.get_developer_instructions('agent3')
+
+
+def test_get_tools_by_agent_name():
+  tool1 = genai_types.Tool(
+      function_declarations=[genai_types.FunctionDeclaration(name='tool1_func')]
+  )
+  agent_details = {
+      'agent1': AgentDetails(name='agent1', tool_declarations=[tool1]),
+      'agent2': AgentDetails(name='agent2', tool_declarations=[]),
+  }
+  app_details = AppDetails(
+      agent_details=agent_details,
+  )
+
+  tools = app_details.get_tools_by_agent_name()
+  expected_tools = {'agent1': [tool1], 'agent2': []}
+  assert tools == expected_tools