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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webdriver/tests/bidi/browsing_context/print/background.py - WPT Dashboard Interop Dashboard
import base64
import pytest
from tests.support.asserts import assert_pdf
from tests.support.image import pt_to_cm
pytestmark = pytest.mark.asyncio
INLINE_BACKGROUND_RENDERING_TEST_CONTENT = """
<style>
:root {
background-color: black;
}
</style>
"""
BLACK_DOT_PNG = "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQIW2NgYGD4DwABBAEAwS2OUAAAAABJRU5ErkJggg=="
WHITE_DOT_PNG = "iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAC0lEQVQIW2P4DwQACfsD/Z8fLAAAAAAASUVORK5CYII="
@pytest.mark.parametrize("print_with_background, expected_image", [
(None, WHITE_DOT_PNG),
(True, BLACK_DOT_PNG),
(False, WHITE_DOT_PNG),
], ids=["default", "true", "false"])
async def test_background(
bidi_session,
top_context,
inline,
compare_png_bidi,
render_pdf_to_png_bidi,
print_with_background,
expected_image,
):
page = inline(INLINE_BACKGROUND_RENDERING_TEST_CONTENT)
await bidi_session.browsing_context.navigate(
context=top_context["context"], url=page, wait="complete")
print_value = await bidi_session.browsing_context.print(
context=top_context["context"],
background=print_with_background,
margin={
"top": 0,
"bottom": 0,
"right": 0,
"left": 0
},
page={
"width": pt_to_cm(1),
"height": pt_to_cm(1),
},
)
assert_pdf(print_value)
png = await render_pdf_to_png_bidi(print_value)
comparison = await compare_png_bidi(png, base64.b64decode(expected_image))
assert comparison.equal()