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Add RealmLive implementation

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Dean Herbert
2021-09-30 23:46:16 +09:00
parent 03bf88ae81
commit b01d82b3fd
3 changed files with 323 additions and 0 deletions
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osu.Game.Tests/Database/RealmLiveTests.cs Normal file
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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.
using System;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using NUnit.Framework;
using osu.Game.Database;
using osu.Game.Models;
using Realms;
#nullable enable
namespace osu.Game.Tests.Database
{
public class RealmLiveTests : RealmTest
{
[Test]
public void TestValueAccessWithOpenContext()
{
RunTestWithRealm((realmFactory, _) =>
{
RealmLive<RealmBeatmap>? liveBeatmap = null;
Task.Factory.StartNew(() =>
{
using (var threadContext = realmFactory.CreateContext())
{
var beatmap = threadContext.Write(r => r.Add(new RealmBeatmap(CreateRuleset(), new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
liveBeatmap = beatmap.ToLive();
}
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
Debug.Assert(liveBeatmap != null);
Task.Factory.StartNew(() =>
{
Assert.DoesNotThrow(() =>
{
using (realmFactory.CreateContext())
{
var resolved = liveBeatmap.Value;
Assert.IsTrue(resolved.Realm.IsClosed);
Assert.IsTrue(resolved.IsValid);
// can access properties without a crash.
Assert.IsFalse(resolved.Hidden);
}
});
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
});
}
[Test]
public void TestScopedReadWithoutContext()
{
RunTestWithRealm((realmFactory, _) =>
{
RealmLive<RealmBeatmap>? liveBeatmap = null;
Task.Factory.StartNew(() =>
{
using (var threadContext = realmFactory.CreateContext())
{
var beatmap = threadContext.Write(r => r.Add(new RealmBeatmap(CreateRuleset(), new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
liveBeatmap = beatmap.ToLive();
}
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
Debug.Assert(liveBeatmap != null);
Task.Factory.StartNew(() =>
{
liveBeatmap.PerformRead(beatmap =>
{
Assert.IsTrue(beatmap.IsValid);
Assert.IsFalse(beatmap.Hidden);
});
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
});
}
[Test]
public void TestScopedWriteWithoutContext()
{
RunTestWithRealm((realmFactory, _) =>
{
RealmLive<RealmBeatmap>? liveBeatmap = null;
Task.Factory.StartNew(() =>
{
using (var threadContext = realmFactory.CreateContext())
{
var beatmap = threadContext.Write(r => r.Add(new RealmBeatmap(CreateRuleset(), new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
liveBeatmap = beatmap.ToLive();
}
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
Debug.Assert(liveBeatmap != null);
Task.Factory.StartNew(() =>
{
liveBeatmap.PerformWrite(beatmap => { beatmap.Hidden = true; });
liveBeatmap.PerformRead(beatmap => { Assert.IsTrue(beatmap.Hidden); });
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
});
}
[Test]
public void TestValueAccessWithoutOpenContextFails()
{
RunTestWithRealm((realmFactory, _) =>
{
RealmLive<RealmBeatmap>? liveBeatmap = null;
Task.Factory.StartNew(() =>
{
using (var threadContext = realmFactory.CreateContext())
{
var beatmap = threadContext.Write(r => r.Add(new RealmBeatmap(CreateRuleset(), new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
liveBeatmap = beatmap.ToLive();
}
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
Debug.Assert(liveBeatmap != null);
Task.Factory.StartNew(() =>
{
Assert.Throws<InvalidOperationException>(() =>
{
var unused = liveBeatmap.Value;
});
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
});
}
[Test]
public void TestLiveAssumptions()
{
RunTestWithRealm((realmFactory, _) =>
{
int changesTriggered = 0;
using (var updateThreadContext = realmFactory.CreateContext())
{
updateThreadContext.All<RealmBeatmap>().SubscribeForNotifications(gotChange);
RealmLive<RealmBeatmap>? liveBeatmap = null;
Task.Factory.StartNew(() =>
{
using (var threadContext = realmFactory.CreateContext())
{
var ruleset = CreateRuleset();
var beatmap = threadContext.Write(r => r.Add(new RealmBeatmap(ruleset, new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
// add a second beatmap to ensure that a full refresh occurs below.
// not just a refresh from the resolved Live.
threadContext.Write(r => r.Add(new RealmBeatmap(ruleset, new RealmBeatmapDifficulty(), new RealmBeatmapMetadata())));
liveBeatmap = beatmap.ToLive();
}
}, TaskCreationOptions.LongRunning | TaskCreationOptions.HideScheduler).Wait();
Debug.Assert(liveBeatmap != null);
// not yet seen by main context
Assert.AreEqual(0, updateThreadContext.All<RealmBeatmap>().Count());
Assert.AreEqual(0, changesTriggered);
var resolved = liveBeatmap.Value;
// retrieval causes an implicit refresh. even changes that aren't related to the retrieval are fired at this point.
Assert.AreEqual(2, updateThreadContext.All<RealmBeatmap>().Count());
Assert.AreEqual(1, changesTriggered);
// even though the realm that this instance was resolved for was closed, it's still valid.
Assert.IsTrue(resolved.Realm.IsClosed);
Assert.IsTrue(resolved.IsValid);
// can access properties without a crash.
Assert.IsFalse(resolved.Hidden);
updateThreadContext.Write(r =>
{
// can use with the main context.
r.Remove(resolved);
});
}
void gotChange(IRealmCollection<RealmBeatmap> sender, ChangeSet changes, Exception error)
{
changesTriggered++;
}
});
}
}
}