fbc52813a4
- Add tests for device_scale_factor (config + integration) - Add tests for redirected_status_code (model + redirect + raw HTML) - Document device_scale_factor in browser config docs and API reference - Document redirected_status_code in crawler result docs and API reference - Add TristanDonze and charlaie to CONTRIBUTORS.md - Update PR-TODOLIST with session results
63 lines
2.4 KiB
Python
63 lines
2.4 KiB
Python
"""Tests for PR #1463: configurable device_scale_factor in BrowserConfig."""
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import pytest
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import pytest_asyncio
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import base64
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from crawl4ai import AsyncWebCrawler, BrowserConfig, CrawlerRunConfig
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class TestDeviceScaleFactorConfig:
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"""Test that device_scale_factor flows correctly through BrowserConfig."""
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def test_default_value(self):
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config = BrowserConfig()
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assert config.device_scale_factor == 1.0
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def test_custom_value(self):
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config = BrowserConfig(device_scale_factor=2.0)
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assert config.device_scale_factor == 2.0
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def test_to_dict_includes_field(self):
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config = BrowserConfig(device_scale_factor=3.0)
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d = config.to_dict()
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assert d["device_scale_factor"] == 3.0
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def test_clone_preserves(self):
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config = BrowserConfig(device_scale_factor=2.5)
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cloned = config.clone()
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assert cloned.device_scale_factor == 2.5
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def test_from_kwargs(self):
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config = BrowserConfig.from_kwargs({"device_scale_factor": 1.5})
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assert config.device_scale_factor == 1.5
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def test_from_kwargs_default(self):
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config = BrowserConfig.from_kwargs({})
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assert config.device_scale_factor == 1.0
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@pytest.mark.asyncio
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async def test_device_scale_factor_produces_larger_screenshot():
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"""Integration test: higher device_scale_factor should produce a larger screenshot."""
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html = "<html><body><h1>Scale Test</h1></body></html>"
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raw_url = f"raw:{html}"
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run_config = CrawlerRunConfig(screenshot=True)
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# Take screenshot at scale 1.0
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browser_1x = BrowserConfig(headless=True, device_scale_factor=1.0, viewport_width=800, viewport_height=600)
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async with AsyncWebCrawler(config=browser_1x) as crawler:
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result_1x = await crawler.arun(raw_url, config=run_config)
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# Take screenshot at scale 2.0
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browser_2x = BrowserConfig(headless=True, device_scale_factor=2.0, viewport_width=800, viewport_height=600)
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async with AsyncWebCrawler(config=browser_2x) as crawler:
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result_2x = await crawler.arun(raw_url, config=run_config)
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assert result_1x.screenshot is not None
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assert result_2x.screenshot is not None
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# 2x scale should produce more pixel data (larger base64 string)
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size_1x = len(base64.b64decode(result_1x.screenshot))
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size_2x = len(base64.b64decode(result_2x.screenshot))
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assert size_2x > size_1x, f"2x screenshot ({size_2x} bytes) should be larger than 1x ({size_1x} bytes)"
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