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Test Info: Warnings
- This test has a WPT meta file that disables it given conditions:
- os == "android" : bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1840084
- This WPT test may be referenced by the following Test IDs:
- /webdriver/tests/bidi/browsing_context/set_viewport/device_pixel_ratio.py - WPT Dashboard Interop Dashboard
import pytest
from webdriver.bidi.modules.script import ContextTarget
from ... import get_device_pixel_ratio, get_viewport_dimensions
@pytest.mark.asyncio
@pytest.mark.parametrize("device_pixel_ratio", [0.5, 2])
async def test_device_pixel_ratio_only(bidi_session, inline, new_tab, device_pixel_ratio):
viewport = await get_viewport_dimensions(bidi_session, new_tab)
# Load a page so that reflow is triggered when changing the DPR
url = inline("<div>foo</div>")
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await bidi_session.browsing_context.set_viewport(
context=new_tab["context"],
device_pixel_ratio=device_pixel_ratio)
assert await get_device_pixel_ratio(bidi_session, new_tab) == device_pixel_ratio
assert await get_viewport_dimensions(bidi_session, new_tab) == viewport
@pytest.mark.asyncio
@pytest.mark.parametrize("device_pixel_ratio", [0.5, 2])
async def test_device_pixel_ratio_with_viewport(
bidi_session, inline, new_tab, device_pixel_ratio
):
test_viewport = {"width": 250, "height": 300}
assert await get_viewport_dimensions(bidi_session, new_tab) != test_viewport
# Load a page so that reflow is triggered when changing the DPR
url = inline("<div>foo</div>")
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await bidi_session.browsing_context.set_viewport(
context=new_tab["context"],
viewport=test_viewport,
device_pixel_ratio=device_pixel_ratio)
assert await get_viewport_dimensions(bidi_session, new_tab) == test_viewport
assert await get_device_pixel_ratio(bidi_session, new_tab) == device_pixel_ratio
result = await bidi_session.script.evaluate(
await_promise=False,
expression="window.devicePixelRatio",
target=ContextTarget(new_tab["context"]),
)
assert result == {"type": "number", "value": device_pixel_ratio}
@pytest.mark.asyncio
async def test_reset_device_pixel_ratio(bidi_session, inline, new_tab):
original_dpr = await get_device_pixel_ratio(bidi_session, new_tab)
test_dpr = original_dpr + 1
# Load a page so that reflow is triggered when changing the DPR
url = inline("<div>foo</div>")
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=url, wait="complete"
)
await bidi_session.browsing_context.set_viewport(
context=new_tab["context"],
device_pixel_ratio=test_dpr)
assert await get_device_pixel_ratio(bidi_session, new_tab) == test_dpr
await bidi_session.browsing_context.set_viewport(
context=new_tab["context"],
device_pixel_ratio=None)
assert await get_device_pixel_ratio(bidi_session, new_tab) == original_dpr
@pytest.mark.asyncio
@pytest.mark.parametrize("device_pixel_ratio", [0.5, 2])
@pytest.mark.parametrize(
"use_horizontal_scrollbar, use_vertical_scrollbar",
[
(True, False),
(False, True),
(True, True),
],
ids=["horizontal", "vertical", "both"],
)
async def test_device_pixel_ratio_with_scrollbar(
bidi_session,
inline,
new_tab,
device_pixel_ratio,
use_horizontal_scrollbar,
use_vertical_scrollbar,
):
viewport_dimensions = await get_viewport_dimensions(bidi_session, new_tab)
width = 100
if use_horizontal_scrollbar:
width = viewport_dimensions["width"] + 100
height = 100
if use_vertical_scrollbar:
height = viewport_dimensions["height"] + 100
html = f"""<div style="width: {width}px; height: {height}px;">foo</div>"""
page_url = inline(html)
await bidi_session.browsing_context.navigate(
context=new_tab["context"], url=page_url, wait="complete"
)
await bidi_session.browsing_context.set_viewport(
context=new_tab["context"], device_pixel_ratio=device_pixel_ratio
)
assert await get_device_pixel_ratio(bidi_session, new_tab) == device_pixel_ratio
assert await get_viewport_dimensions(bidi_session, new_tab) == viewport_dimensions