public async Task ShouldScrollAccordingToMouseWheel()
{
var waitForFunctionOptions = new WaitForFunctionOptions
{
PollingInterval = 50,
Timeout = 1000
};
Task WaitForScrollPointAsync(DomPointInternal point)
=> Page.WaitForFunctionAsync(
@"(x, y) => document.body.scrollLeft === x && document.body.scrollTop === y",
waitForFunctionOptions,
point.X,
point.Y);
await Page.GoToAsync(
$@"{TestConstants.ServerUrl}/longText.html",
WaitUntilNavigation.Networkidle0);
var expectedWheelEvents = new[]
{
new WheelEventInternal(0, 500),
new WheelEventInternal(0, -200),
new WheelEventInternal(300, 0),
new WheelEventInternal(-150, 0)
};
var expectedScrollPoint = new DomPointInternal
{
X = 0,
Y = 0
};
await WaitForScrollPointAsync(expectedScrollPoint);
foreach (var @event in expectedWheelEvents)
{
await Page.Mouse.WheelAsync(@event.DeltaX, @event.DeltaY);
expectedScrollPoint.Scroll(@event.DeltaX, @event.DeltaY);
await WaitForScrollPointAsync(expectedScrollPoint);
}
}
public static async Task WaitForTruth(this Page page, string script, WaitForFunctionOptions opts = null)
{
var jsHandle = await page.WaitForExpressionAsync(script, opts);
await jsHandle.DisposeAsync();
}
