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osu-lazer/osu.Game.Tests/Visual/Components/TestScenePollingComponent.cs

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// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
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#nullable disable
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using System;
using System.Threading.Tasks;
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using NUnit.Framework;
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using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
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using osu.Framework.Logging;
using osu.Framework.Testing;
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using osu.Game.Graphics.Sprites;
using osu.Game.Online;
using osuTK;
using osuTK.Graphics;
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namespace osu.Game.Tests.Visual.Components
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{
[HeadlessTest]
public partial class TestScenePollingComponent : OsuTestScene
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{
private Container pollBox;
private TestPoller poller;
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private const float safety_adjust = 1f;
private int count;
[SetUp]
public void SetUp() => Schedule(() =>
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{
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count = 0;
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Children = new Drawable[]
{
pollBox = new Container
{
Alpha = 0,
RelativeSizeAxes = Axes.Both,
Children = new Drawable[]
{
new Box
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Scale = new Vector2(0.4f),
Colour = Color4.LimeGreen,
RelativeSizeAxes = Axes.Both,
},
new OsuSpriteText
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Text = "Poll!",
}
}
}
};
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});
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[Test]
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[Ignore("polling is threaded, and it's very hard to hook into it correctly")]
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public void TestInstantPolling()
{
createPoller(true);
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AddStep("set poll interval to 1", () => poller.TimeBetweenPolls.Value = TimePerAction * safety_adjust);
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checkCount(1);
checkCount(2);
checkCount(3);
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AddStep("set poll interval to 5", () => poller.TimeBetweenPolls.Value = TimePerAction * safety_adjust * 5);
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checkCount(4);
checkCount(4);
checkCount(4);
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skip();
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checkCount(5);
checkCount(5);
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AddStep("set poll interval to 1", () => poller.TimeBetweenPolls.Value = TimePerAction * safety_adjust);
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checkCount(6);
checkCount(7);
}
[Test]
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[Ignore("i have no idea how to fix the timing of this one")]
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public void TestSlowPolling()
{
createPoller(false);
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AddStep("set poll interval to 1", () => poller.TimeBetweenPolls.Value = TimePerAction * safety_adjust * 5);
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checkCount(0);
skip();
checkCount(0);
skip();
skip();
checkCount(0);
skip();
skip();
checkCount(0);
}
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private void skip() => AddStep("skip", () =>
{
// could be 4 or 5 at this point due to timing discrepancies (safety_adjust @ 0.2 * 5 ~= 1)
// easiest to just ignore the value at this point and move on.
});
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private void checkCount(int checkValue)
{
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AddAssert($"count is {checkValue}", () =>
{
Logger.Log($"value is {count}");
return count == checkValue;
});
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}
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private void createPoller(bool instant) => AddStep("create poller", () =>
{
poller?.Expire();
Add(poller = instant ? new TestPoller() : new TestSlowPoller());
poller.OnPoll += () =>
{
pollBox.FadeOutFromOne(500);
count++;
};
});
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protected override double TimePerAction => 500;
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public partial class TestPoller : PollingComponent
{
public event Action OnPoll;
protected override Task Poll()
{
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Schedule(() => OnPoll?.Invoke());
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return base.Poll();
}
}
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public partial class TestSlowPoller : TestPoller
{
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protected override Task Poll() => Task.Delay((int)(TimeBetweenPolls.Value / 2f / Clock.Rate)).ContinueWith(_ => base.Poll());
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}
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}
}