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397 lines
14 KiB
Python
397 lines
14 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import annotations
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from unittest.mock import AsyncMock
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from unittest.mock import Mock
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from google.adk.agents.invocation_context import InvocationContext
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from google.adk.artifacts.base_artifact_service import ArtifactVersion
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from google.adk.plugins.save_files_as_artifacts_plugin import SaveFilesAsArtifactsPlugin
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from google.genai import types
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import pytest
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class TestSaveFilesAsArtifactsPlugin:
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"""Test suite for SaveFilesAsArtifactsPlugin."""
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def setup_method(self):
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"""Set up test fixtures."""
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self.plugin = SaveFilesAsArtifactsPlugin()
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# Mock invocation context
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self.mock_context = Mock(spec=InvocationContext)
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self.mock_context.app_name = "test_app"
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self.mock_context.user_id = "test_user"
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self.mock_context.invocation_id = "test_invocation_123"
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self.mock_context.session = Mock()
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self.mock_context.session.id = "test_session"
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self.mock_context.session.state = {}
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artifact_service = Mock()
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artifact_service.save_artifact = AsyncMock(return_value=0)
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async def _mock_get_artifact_version(**kwargs):
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filename = kwargs.get("filename", "unknown_file")
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version = kwargs.get("version", 0)
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return ArtifactVersion(
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version=version,
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canonical_uri=f"gs://mock-bucket/{filename}/versions/{version}",
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mime_type="application/pdf",
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)
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artifact_service.get_artifact_version = AsyncMock(
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side_effect=_mock_get_artifact_version
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)
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self.mock_context.artifact_service = artifact_service
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@pytest.mark.asyncio
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async def test_save_files_with_display_name(self):
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"""Test saving files when inline_data has display_name."""
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inline_data = types.Blob(
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display_name="test_document.pdf",
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data=b"test data",
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mime_type="application/pdf",
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)
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original_part = types.Part(inline_data=inline_data)
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user_message = types.Content(parts=[original_part])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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self.mock_context.artifact_service.save_artifact.assert_called_once_with(
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app_name="test_app",
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user_id="test_user",
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session_id="test_session",
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filename="test_document.pdf",
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artifact=original_part,
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)
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assert result
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assert len(result.parts) == 2
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assert result.parts[0].text == '[Uploaded Artifact: "test_document.pdf"]'
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assert result.parts[1].file_data
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assert (
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result.parts[1].file_data.file_uri
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== "gs://mock-bucket/test_document.pdf/versions/0"
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)
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assert result.parts[1].file_data.display_name == "test_document.pdf"
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assert result.parts[1].file_data.mime_type == "application/pdf"
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@pytest.mark.asyncio
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async def test_attach_file_reference_false(self):
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"""Test that file reference is not attached when attach_file_reference is False."""
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plugin = SaveFilesAsArtifactsPlugin(attach_file_reference=False)
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inline_data = types.Blob(
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display_name="test_document.pdf",
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data=b"test data",
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mime_type="application/pdf",
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)
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original_part = types.Part(inline_data=inline_data)
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user_message = types.Content(parts=[original_part])
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result = await plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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self.mock_context.artifact_service.save_artifact.assert_called_once_with(
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app_name="test_app",
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user_id="test_user",
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session_id="test_session",
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filename="test_document.pdf",
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artifact=original_part,
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)
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assert result
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assert len(result.parts) == 1
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assert result.parts[0].text == '[Uploaded Artifact: "test_document.pdf"]'
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@pytest.mark.asyncio
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async def test_save_files_without_display_name(self):
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"""Test saving files when inline_data has no display_name."""
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inline_data = types.Blob(
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display_name=None, data=b"test data", mime_type="application/pdf"
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)
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original_part = types.Part(inline_data=inline_data)
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user_message = types.Content(parts=[original_part])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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expected_filename = "artifact_test_invocation_123_0"
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self.mock_context.artifact_service.save_artifact.assert_called_once_with(
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app_name="test_app",
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user_id="test_user",
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session_id="test_session",
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filename=expected_filename,
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artifact=original_part,
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)
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assert result
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assert len(result.parts) == 2
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assert result.parts[0].text == f'[Uploaded Artifact: "{expected_filename}"]'
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assert result.parts[1].file_data
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assert (
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result.parts[1].file_data.file_uri
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== "gs://mock-bucket/artifact_test_invocation_123_0/versions/0"
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)
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assert result.parts[1].file_data.display_name == expected_filename
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@pytest.mark.asyncio
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async def test_multiple_files_in_message(self):
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"""Test handling multiple files in a single message."""
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inline_data1 = types.Blob(
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display_name="file1.txt", data=b"file1 content", mime_type="text/plain"
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)
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inline_data2 = types.Blob(
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display_name="file2.jpg", data=b"file2 content", mime_type="image/jpeg"
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)
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user_message = types.Content(
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parts=[
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types.Part(inline_data=inline_data1),
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types.Part(text="Some text between files"),
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types.Part(inline_data=inline_data2),
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]
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)
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert self.mock_context.artifact_service.save_artifact.call_count == 2
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first_call = (
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self.mock_context.artifact_service.save_artifact.call_args_list[0]
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)
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second_call = (
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self.mock_context.artifact_service.save_artifact.call_args_list[1]
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)
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assert first_call[1]["filename"] == "file1.txt"
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assert second_call[1]["filename"] == "file2.jpg"
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assert result
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assert len(result.parts) == 5
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assert result.parts[0].text == '[Uploaded Artifact: "file1.txt"]'
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assert result.parts[1].file_data
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assert (
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result.parts[1].file_data.file_uri
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== "gs://mock-bucket/file1.txt/versions/0"
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)
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assert result.parts[1].file_data.display_name == "file1.txt"
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assert result.parts[2].text == "Some text between files"
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assert result.parts[3].text == '[Uploaded Artifact: "file2.jpg"]'
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assert result.parts[4].file_data
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assert (
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result.parts[4].file_data.file_uri
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== "gs://mock-bucket/file2.jpg/versions/0"
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)
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assert result.parts[4].file_data.display_name == "file2.jpg"
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@pytest.mark.asyncio
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async def test_no_artifact_service(self):
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"""Test behavior when artifact service is not available."""
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self.mock_context.artifact_service = None
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inline_data = types.Blob(
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display_name="test.pdf", data=b"test data", mime_type="application/pdf"
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)
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user_message = types.Content(parts=[types.Part(inline_data=inline_data)])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert result == user_message
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assert result.parts[0].inline_data == inline_data
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@pytest.mark.asyncio
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async def test_no_parts_in_message(self):
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"""Test behavior when message has no parts."""
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user_message = types.Content(parts=[])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert result is None
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self.mock_context.artifact_service.save_artifact.assert_not_called()
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@pytest.mark.asyncio
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async def test_parts_without_inline_data(self):
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"""Test behavior with parts that don't have inline_data."""
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user_message = types.Content(
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parts=[types.Part(text="Hello world"), types.Part(text="No files here")]
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)
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert result is None
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self.mock_context.artifact_service.save_artifact.assert_not_called()
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@pytest.mark.asyncio
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async def test_save_artifact_failure(self):
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"""Test behavior when saving artifact fails."""
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self.mock_context.artifact_service.save_artifact.side_effect = Exception(
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"Storage error"
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)
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inline_data = types.Blob(
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display_name="test.pdf", data=b"test data", mime_type="application/pdf"
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)
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user_message = types.Content(parts=[types.Part(inline_data=inline_data)])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert result is None
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@pytest.mark.asyncio
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async def test_mixed_success_and_failure(self):
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"""Test behavior when some files save successfully and others fail."""
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save_calls = 0
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async def _save_side_effect(*_args, **_kwargs):
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nonlocal save_calls
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save_calls += 1
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if save_calls == 2:
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raise Exception("Storage error on second file")
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return 0
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self.mock_context.artifact_service.save_artifact.side_effect = (
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_save_side_effect
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)
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inline_data1 = types.Blob(
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display_name="success.pdf",
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data=b"success data",
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mime_type="application/pdf",
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)
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inline_data2 = types.Blob(
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display_name="failure.pdf",
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data=b"failure data",
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mime_type="application/pdf",
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)
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original_part2 = types.Part(inline_data=inline_data2)
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user_message = types.Content(
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parts=[types.Part(inline_data=inline_data1), original_part2]
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)
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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assert result
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assert len(result.parts) == 3
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assert result.parts[0].text == '[Uploaded Artifact: "success.pdf"]'
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assert result.parts[1].file_data
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assert result.parts[2] == original_part2
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assert result.parts[2].inline_data == inline_data2
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@pytest.mark.asyncio
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async def test_placeholder_text_format(self):
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"""Test that placeholder text is formatted correctly."""
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inline_data = types.Blob(
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display_name="test file with spaces.docx",
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data=b"document data",
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mime_type=(
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"application/vnd.openxmlformats-officedocument."
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"wordprocessingml.document"
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),
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)
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user_message = types.Content(parts=[types.Part(inline_data=inline_data)])
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result = await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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expected_text = '[Uploaded Artifact: "test file with spaces.docx"]'
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assert result.parts[0].text == expected_text
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assert result.parts[1].file_data
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def test_plugin_name_default(self):
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"""Test that plugin has correct default name."""
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plugin = SaveFilesAsArtifactsPlugin()
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assert plugin.name == "save_files_as_artifacts_plugin"
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@pytest.mark.asyncio
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async def test_artifact_delta_reporting(self):
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"""Test that the artifact delta is written to state then event actions."""
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# 1. First Turn - Trigger user message callback
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blob = types.Blob(
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display_name="blob.pdf",
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data=b"test data",
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mime_type="application/pdf",
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)
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user_message = types.Content(parts=[types.Part(inline_data=blob)])
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await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message
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)
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# Verify state is updated
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key = "save_files_as_artifacts_plugin:pending_delta"
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assert key in self.mock_context.session.state
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assert self.mock_context.session.state[key] == {"blob.pdf": 0}
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# 2. First Turn - Trigger before agent callback
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callback_context = Mock()
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callback_context.state = self.mock_context.session.state
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callback_context.actions = Mock()
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callback_context.actions.artifact_delta = {}
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await self.plugin.before_agent_callback(
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agent=Mock(), callback_context=callback_context
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)
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# Verify artifact_delta is updated and state is cleared
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assert callback_context.actions.artifact_delta == {"blob.pdf": 0}
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assert self.mock_context.session.state[key] == {}
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# 3. Second Turn - Trigger user message callback
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blob_2 = types.Blob(
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display_name="blob_2.pdf",
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data=b"test data 2",
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mime_type="application/pdf",
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)
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user_message_2 = types.Content(parts=[types.Part(inline_data=blob_2)])
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await self.plugin.on_user_message_callback(
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invocation_context=self.mock_context, user_message=user_message_2
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)
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# Verify state is updated
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assert self.mock_context.session.state[key] == {"blob_2.pdf": 0}
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# 4. Second Turn - Trigger before agent callback
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callback_context_2 = Mock()
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callback_context_2.state = self.mock_context.session.state
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callback_context_2.actions = Mock()
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callback_context_2.actions.artifact_delta = {}
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await self.plugin.before_agent_callback(
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agent=Mock(), callback_context=callback_context_2
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)
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# Verify artifact_delta is updated and state is cleared
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assert callback_context_2.actions.artifact_delta == {"blob_2.pdf": 0}
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assert self.mock_context.session.state[key] == {}
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