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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webdriver/tests/classic/perform_actions/wheel.py - WPT Dashboard Interop Dashboard
import pytest
from webdriver.error import NoSuchWindowException
import time
from tests.classic.perform_actions.support.refine import get_events
from tests.support.keys import Keys
from tests.support.sync import Poll
def test_null_response_value(session, wheel_chain):
value = wheel_chain.scroll(0, 0, 0, 10).perform()
assert value is None
def test_no_top_browsing_context(session, closed_window, wheel_chain):
with pytest.raises(NoSuchWindowException):
wheel_chain.scroll(0, 0, 0, 10).perform()
def test_no_browsing_context(session, closed_window, wheel_chain):
with pytest.raises(NoSuchWindowException):
wheel_chain.scroll(0, 0, 0, 10).perform()
def test_scroll_not_scrollable(session, test_actions_scroll_page, wheel_chain):
target = session.find.css("#not-scrollable", all=False)
wheel_chain.scroll(0, 0, 5, 10, origin=target).perform()
events = get_events(session)
assert len(events) == 1
assert events[0]["type"] == "wheel"
assert events[0]["deltaX"] == 5
assert events[0]["deltaY"] == 10
assert events[0]["deltaZ"] == 0
assert events[0]["target"] == "not-scrollable-content"
def test_scroll_scrollable_overflow(session, test_actions_scroll_page, wheel_chain):
target = session.find.css("#scrollable", all=False)
wheel_chain.scroll(0, 0, 5, 10, origin=target).perform()
events = get_events(session)
assert len(events) == 1
assert events[0]["type"] == "wheel"
assert events[0]["deltaX"] == 5
assert events[0]["deltaY"] == 10
assert events[0]["deltaZ"] == 0
assert events[0]["target"] == "scrollable-content"
def test_scroll_iframe(session, test_actions_scroll_page, wheel_chain):
target = session.find.css("#iframe", all=False)
wheel_chain.scroll(0, 0, 5, 10, origin=target).perform()
# Chrome requires some time (~10-20ms) to process the event from the iframe, so we wait for it.
def wait_for_events(_):
return len(get_events(session)) > 0
Poll(session, timeout=0.5, interval=0.01, message='No wheel events found').until(wait_for_events)
events = get_events(session)
assert len(events) == 1
assert events[0]["type"] == "wheel"
assert events[0]["deltaX"] == 5
assert events[0]["deltaY"] == 10
assert events[0]["deltaZ"] == 0
assert events[0]["target"] == "iframeContent"
@pytest.mark.parametrize("mode", ["open", "closed"])
@pytest.mark.parametrize("nested", [False, True], ids=["outer", "inner"])
def test_scroll_shadow_tree(session, get_test_page, wheel_chain, mode, nested):
session.url = get_test_page(
shadow_doc="""
<div id="scrollableShadowTree"
style="width: 100px; height: 100px; overflow: auto;">
<div
id="scrollableShadowTreeContent"
style="width: 600px; height: 1000px; background-color:blue"></div>
</div>""",
shadow_root_mode=mode,
nested_shadow_dom=nested,
)
shadow_root = session.find.css("custom-element", all=False).shadow_root
if nested:
shadow_root = shadow_root.find_element(
"css selector", "inner-custom-element"
).shadow_root
scrollable = shadow_root.find_element("css selector", "#scrollableShadowTree")
# Add a simplified event recorder to track events in the test ShadowRoot.
session.execute_script(
"""
window.wheelEvents = [];
arguments[0].addEventListener("wheel",
function(event) {
window.wheelEvents.push({
"deltaX": event.deltaX,
"deltaY": event.deltaY,
"target": event.target.id
});
}
);
""",
args=(scrollable,),
)
wheel_chain.scroll(0, 0, 5, 10, origin=scrollable).perform()
events = session.execute_script("return window.wheelEvents;") or []
assert len(events) == 1
assert events[0]["deltaX"] == 5
assert events[0]["deltaY"] == 10
assert events[0]["target"] == "scrollableShadowTreeContent"
def test_scroll_with_key_pressed(
session, test_actions_scroll_page, key_chain, wheel_chain
):
scrollable = session.find.css("#scrollable", all=False)
key_chain.key_down(Keys.R_SHIFT).perform()
wheel_chain.scroll(0, 0, 5, 10, origin=scrollable).perform()
key_chain.key_up(Keys.R_SHIFT).perform()
events = get_events(session)
assert len(events) == 1
assert events[0]["type"] == "wheel"
assert events[0]["shiftKey"] == True