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35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
"""Check the famous Acid2 test."""
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import io
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from PIL import Image
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from weasyprint import CSS, HTML
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from .testing_utils import assert_no_logs, capture_logs, resource_path
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@assert_no_logs
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def test_acid2(assert_pixels_equal):
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# Reduce image size and avoid Ghostscript rounding problems
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stylesheets = (CSS(string='@page { size: 500px 800px }'),)
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def render(filename):
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return HTML(resource_path(filename)).render(stylesheets=stylesheets)
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with capture_logs():
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# This is a copy of https://www.webstandards.org/files/acid2/test.html
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document = render('acid2-test.html')
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intro_page, test_page = document.pages
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# Ignore the intro page: it is not in the reference
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test_png = document.copy([test_page]).write_png()
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test_pixels = Image.open(io.BytesIO(test_png)).getdata()
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# This is a copy of https://www.webstandards.org/files/acid2/reference.html
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ref_png = render('acid2-reference.html').write_png()
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ref_image = Image.open(io.BytesIO(ref_png))
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ref_pixels = ref_image.getdata()
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width, height = ref_image.size
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assert_pixels_equal(width, height, test_pixels, ref_pixels, tolerance=2)
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