- Add `prefetch` parameter to CrawlerRunConfig - Add `quick_extract_links()` function for fast link extraction - Add short-circuit in aprocess_html() for prefetch mode - Add 42 tests (unit, integration, regression) 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
237 lines
8.4 KiB
Python
237 lines
8.4 KiB
Python
"""Integration tests for prefetch mode with the crawler."""
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import pytest
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import asyncio
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from crawl4ai import AsyncWebCrawler, CrawlerRunConfig, BrowserConfig
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# Use crawl4ai docs as test domain
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TEST_DOMAIN = "https://docs.crawl4ai.com"
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class TestPrefetchModeIntegration:
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"""Integration tests for prefetch mode."""
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@pytest.mark.asyncio
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async def test_prefetch_returns_html_and_links(self):
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"""Test that prefetch mode returns HTML and links only."""
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(prefetch=True)
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result = await crawler.arun(TEST_DOMAIN, config=config)
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# Should have HTML
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assert result.html is not None
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assert len(result.html) > 0
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assert "<html" in result.html.lower() or "<!doctype" in result.html.lower()
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# Should have links
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assert result.links is not None
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assert "internal" in result.links
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assert "external" in result.links
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# Should NOT have processed content
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assert result.markdown is None or (
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hasattr(result.markdown, 'raw_markdown') and
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result.markdown.raw_markdown is None
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)
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assert result.cleaned_html is None
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assert result.extracted_content is None
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@pytest.mark.asyncio
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async def test_prefetch_preserves_metadata(self):
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"""Test that prefetch mode preserves essential metadata."""
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(prefetch=True)
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result = await crawler.arun(TEST_DOMAIN, config=config)
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# Should have success flag
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assert result.success is True
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# Should have URL
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assert result.url is not None
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# Status code should be present
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assert result.status_code is not None or result.status_code == 200
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@pytest.mark.asyncio
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async def test_prefetch_with_deep_crawl(self):
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"""Test prefetch mode with deep crawl strategy."""
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from crawl4ai import BFSDeepCrawlStrategy
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(
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prefetch=True,
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deep_crawl_strategy=BFSDeepCrawlStrategy(
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max_depth=1,
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max_pages=3
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)
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)
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result_container = await crawler.arun(TEST_DOMAIN, config=config)
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# Handle both list and iterator results
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if hasattr(result_container, '__aiter__'):
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results = [r async for r in result_container]
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else:
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results = list(result_container) if hasattr(result_container, '__iter__') else [result_container]
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# Each result should have HTML and links
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for result in results:
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assert result.html is not None
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assert result.links is not None
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# Should have crawled at least one page
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assert len(results) >= 1
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@pytest.mark.asyncio
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async def test_prefetch_then_process_with_raw(self):
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"""Test the full two-phase workflow: prefetch then process."""
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async with AsyncWebCrawler() as crawler:
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# Phase 1: Prefetch
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prefetch_config = CrawlerRunConfig(prefetch=True)
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prefetch_result = await crawler.arun(TEST_DOMAIN, config=prefetch_config)
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stored_html = prefetch_result.html
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assert stored_html is not None
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assert len(stored_html) > 0
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# Phase 2: Process with raw: URL
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process_config = CrawlerRunConfig(
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# No prefetch - full processing
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base_url=TEST_DOMAIN # Provide base URL for link resolution
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)
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processed_result = await crawler.arun(
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f"raw:{stored_html}",
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config=process_config
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)
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# Should now have full processing
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assert processed_result.html is not None
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assert processed_result.success is True
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# Note: cleaned_html and markdown depend on the content
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@pytest.mark.asyncio
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async def test_prefetch_links_structure(self):
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"""Test that links have the expected structure."""
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(prefetch=True)
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result = await crawler.arun(TEST_DOMAIN, config=config)
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assert result.links is not None
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# Check internal links structure
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if result.links["internal"]:
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link = result.links["internal"][0]
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assert "href" in link
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assert "text" in link
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assert link["href"].startswith("http")
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# Check external links structure (if any)
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if result.links["external"]:
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link = result.links["external"][0]
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assert "href" in link
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assert "text" in link
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assert link["href"].startswith("http")
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@pytest.mark.asyncio
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async def test_prefetch_config_clone(self):
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"""Test that config.clone() preserves prefetch setting."""
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config = CrawlerRunConfig(prefetch=True)
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cloned = config.clone()
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assert cloned.prefetch == True
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# Clone with override
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cloned_false = config.clone(prefetch=False)
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assert cloned_false.prefetch == False
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@pytest.mark.asyncio
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async def test_prefetch_to_dict(self):
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"""Test that to_dict() includes prefetch."""
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config = CrawlerRunConfig(prefetch=True)
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config_dict = config.to_dict()
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assert "prefetch" in config_dict
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assert config_dict["prefetch"] == True
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@pytest.mark.asyncio
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async def test_prefetch_default_false(self):
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"""Test that prefetch defaults to False."""
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config = CrawlerRunConfig()
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assert config.prefetch == False
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@pytest.mark.asyncio
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async def test_prefetch_explicit_false(self):
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"""Test explicit prefetch=False works like default."""
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(prefetch=False)
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result = await crawler.arun(TEST_DOMAIN, config=config)
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# Should have full processing
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assert result.html is not None
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# cleaned_html should be populated in normal mode
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assert result.cleaned_html is not None
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class TestPrefetchPerformance:
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"""Performance-related tests for prefetch mode."""
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@pytest.mark.asyncio
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async def test_prefetch_returns_quickly(self):
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"""Test that prefetch mode returns results quickly."""
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import time
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async with AsyncWebCrawler() as crawler:
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# Prefetch mode
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start = time.time()
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prefetch_config = CrawlerRunConfig(prefetch=True)
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await crawler.arun(TEST_DOMAIN, config=prefetch_config)
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prefetch_time = time.time() - start
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# Full mode
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start = time.time()
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full_config = CrawlerRunConfig()
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await crawler.arun(TEST_DOMAIN, config=full_config)
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full_time = time.time() - start
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# Log times for debugging
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print(f"\nPrefetch: {prefetch_time:.3f}s, Full: {full_time:.3f}s")
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# Prefetch should not be significantly slower
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# (may be same or slightly faster depending on content)
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# This is a soft check - mostly for logging
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class TestPrefetchWithRawHTML:
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"""Test prefetch mode with raw HTML input."""
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@pytest.mark.asyncio
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async def test_prefetch_with_raw_html(self):
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"""Test prefetch mode works with raw: URL scheme."""
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sample_html = """
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<html>
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<head><title>Test Page</title></head>
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<body>
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<h1>Hello World</h1>
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<a href="/link1">Link 1</a>
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<a href="/link2">Link 2</a>
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<a href="https://external.com/page">External</a>
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</body>
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</html>
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"""
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async with AsyncWebCrawler() as crawler:
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config = CrawlerRunConfig(
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prefetch=True,
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base_url="https://example.com"
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)
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result = await crawler.arun(f"raw:{sample_html}", config=config)
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assert result.success is True
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assert result.html is not None
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assert result.links is not None
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# Should have extracted links
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assert len(result.links["internal"]) >= 2
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assert len(result.links["external"]) >= 1
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