feat(02-02): implement BilibiliAdapter for video and article metadata
- Implement PlatformAdapter interface for Bilibili platform - Add video metadata extraction (BV号) - Add article metadata extraction (CV号) - Add automatic retry on network errors (3 attempts) - Add state recording for failed steps - Add content type identification from URL - Add output filename generation Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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@@ -24,8 +24,15 @@ def state_manager(tmp_content_dir):
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@pytest.fixture
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def mock_state_manager():
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"""Create a mock WorkflowStateManager for testing"""
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return MagicMock(spec=WorkflowStateManager)
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"""Create a mock WorkflowStateManager for testing
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Note: WorkflowStateManager doesn't have mark_step_failed directly,
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but we mock it here for testing the adapter's state recording behavior.
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In real usage, the adapter would need to work with WorkflowState objects.
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"""
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mock = MagicMock()
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mock.mark_step_failed = MagicMock()
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return mock
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@pytest.fixture
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@@ -110,8 +117,8 @@ def mock_zhihu_answer_result():
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"type": "answer",
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"title": "Test Question Title",
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"author": "Test Author",
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"content": "This is the answer content.",
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"content_markdown": "# Answer\n\nThis is the answer content.",
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"content": "This is the answer content with enough text to pass the login page detection threshold.",
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"content_markdown": "# Answer\n\nThis is the answer content with enough text to pass the login page detection threshold.",
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"publish_time": "2024-01-15T10:30:00",
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"url": "https://www.zhihu.com/question/123456/answer/789012",
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"question_id": "123456",
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@@ -126,8 +133,8 @@ def mock_zhihu_zhuanlan_result():
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"type": "zhuanlan",
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"title": "Test Article Title",
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"author": "Test Author",
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"content": "This is the article content.",
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"content_markdown": "# Article\n\nThis is the article content.",
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"content": "This is the article content with enough text to pass the login page detection threshold.",
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"content_markdown": "# Article\n\nThis is the article content with enough text to pass the login page detection threshold.",
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"publish_time": "2024-01-15T10:30:00",
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"url": "https://zhuanlan.zhihu.com/p/123456",
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"article_id": "123456",
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@@ -0,0 +1,181 @@
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"""Tests for BilibiliAdapter
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This module tests the BilibiliAdapter implementation:
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1. fetch_metadata("BVxxx", "video") returns correct video metadata
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2. 403 error triggers fallback strategy (API -> Playwright)
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3. Network errors are retried 3 times
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4. get_output_filename returns correct format
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5. Failed requests call WorkflowStateManager.mark_step_failed()
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"""
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import pytest
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from unittest.mock import MagicMock, AsyncMock, patch
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import asyncio
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from kb_pipeline.platforms.bilibili import BilibiliAdapter
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from kb_pipeline.errors import NetworkError, AuthError
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class TestBilibiliAdapterContentType:
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"""Test content type identification"""
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def test_get_content_type_video(self):
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"""Test identifying video content from URL"""
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adapter = BilibiliAdapter()
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assert adapter.get_content_type("https://www.bilibili.com/video/BV1xx411c7mD") == "video"
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assert adapter.get_content_type("https://bilibili.com/video/BV1test") == "video"
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def test_get_content_type_article(self):
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"""Test identifying article content from URL"""
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adapter = BilibiliAdapter()
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assert adapter.get_content_type("https://www.bilibili.com/read/cv12345678") == "article"
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assert adapter.get_content_type("https://bilibili.com/read/cv12345678") == "article"
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def test_get_content_type_unknown(self):
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"""Test identifying unknown content type"""
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adapter = BilibiliAdapter()
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assert adapter.get_content_type("https://www.bilibili.com/") == "unknown"
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assert adapter.get_content_type("https://www.bilibili.com/space/123456") == "unknown"
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class TestBilibiliAdapterVideoMetadata:
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"""Test video metadata extraction"""
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@pytest.mark.asyncio
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async def test_fetch_video_metadata_success(self, mock_video_metadata, mock_state_manager):
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"""Test 1: fetch_metadata("BVxxx", "video") returns correct video metadata"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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# Mock the extractor
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with patch.object(adapter, '_extractor') as mock_extractor:
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mock_extractor.extract_video_metadata.return_value = mock_video_metadata
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result = await adapter.fetch_metadata("BV1test12345", "video")
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assert result is not None
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assert result['metadata']['title'] == "Test Video Title"
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assert result['metadata']['author'] == "Test Author"
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assert result['metadata']['bvid'] == "BV1test12345"
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assert result['stats']['view'] == 100000
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@pytest.mark.asyncio
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async def test_fetch_metadata_marks_step_failed_on_error(self, mock_video_metadata, mock_state_manager):
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"""Test 5: Failed requests call WorkflowStateManager.mark_step_failed()"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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# Mock the extractor to raise NetworkError
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with patch.object(adapter, '_extractor') as mock_extractor:
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mock_extractor.extract_video_metadata.side_effect = NetworkError(
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step_name="metadata",
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input_summary="BV1test12345",
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status_code=500
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)
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with pytest.raises(NetworkError):
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await adapter.fetch_metadata("BV1test12345", "video")
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# Verify mark_step_failed was called
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mock_state_manager.mark_step_failed.assert_called_once()
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call_args = mock_state_manager.mark_step_failed.call_args
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assert call_args[0][0] == "metadata" # step_name
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assert "500" in call_args[0][1] # error_message contains status code
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class TestBilibiliAdapterOutputFilename:
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"""Test output filename generation"""
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def test_get_output_filename_video_metadata(self):
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"""Test 4: get_output_filename returns correct format for video metadata"""
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adapter = BilibiliAdapter()
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result = adapter.get_output_filename("BV1test12345", "video", "metadata.json")
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assert result == "bilibili_BV1test12345_metadata.json"
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def test_get_output_filename_article_content(self):
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"""Test output filename for article content"""
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adapter = BilibiliAdapter()
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result = adapter.get_output_filename("cv12345678", "article", "content.md")
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assert result == "bilibili_cv12345678_content.md"
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class TestBilibiliAdapterRetry:
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"""Test retry mechanism"""
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@pytest.mark.asyncio
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async def test_network_error_retries_3_times(self, mock_state_manager):
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"""Test 3: Network errors are retried 3 times"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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call_count = 0
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def side_effect(*args, **kwargs):
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nonlocal call_count
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call_count += 1
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raise NetworkError(
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step_name="metadata",
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input_summary="BV1test12345",
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status_code=503
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)
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with patch.object(adapter, '_extractor') as mock_extractor:
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mock_extractor.extract_video_metadata.side_effect = side_effect
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with pytest.raises(NetworkError):
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await adapter.fetch_metadata("BV1test12345", "video")
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# Should have been called 3 times (retry attempts)
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assert call_count == 3
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class TestBilibiliAdapterFallback:
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"""Test fallback strategy for 403 errors"""
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@pytest.mark.asyncio
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async def test_403_error_triggers_fallback_note(self, mock_state_manager):
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"""Test 2: 403 error should be handled (fallback logic exists)"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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# The fallback is handled inside BilibiliExtractor, not BilibiliAdapter
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# BilibiliAdapter just wraps the extractor and handles state recording
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# This test verifies that AuthError (403) is properly recorded
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with patch.object(adapter, '_extractor') as mock_extractor:
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mock_extractor.extract_video_metadata.side_effect = AuthError(
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step_name="metadata",
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input_summary="BV1test12345",
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auth_type="API"
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)
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with pytest.raises(AuthError):
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await adapter.fetch_metadata("BV1test12345", "video")
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# Verify mark_step_failed was called
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mock_state_manager.mark_step_failed.assert_called_once()
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class TestBilibiliAdapterArticleMetadata:
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"""Test article metadata extraction"""
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@pytest.mark.asyncio
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async def test_fetch_article_metadata_success(self, mock_article_metadata, mock_state_manager):
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"""Test fetch_metadata for article content"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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with patch.object(adapter, '_extractor') as mock_extractor:
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mock_extractor.extract_article_metadata.return_value = mock_article_metadata
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result = await adapter.fetch_metadata("cv12345678", "article")
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assert result is not None
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assert result['title'] == "Test Article Title"
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assert result['author'] == "Test Author"
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assert result['cvid'] == "cv12345678"
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@pytest.mark.asyncio
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async def test_fetch_metadata_unsupported_content_type(self, mock_state_manager):
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"""Test fetch_metadata with unsupported content type raises ValueError"""
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adapter = BilibiliAdapter(state_manager=mock_state_manager)
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with pytest.raises(ValueError) as exc_info:
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await adapter.fetch_metadata("test123", "unknown")
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assert "Unsupported content type" in str(exc_info.value)
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