59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
using AcDream.App.UI;
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namespace AcDream.App.Tests.UI;
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public sealed class InteractionStateTests
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{
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[Fact]
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public void Modes_HaveOneOwnerAndOneDeduplicatedTransitionStream()
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{
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var state = new InteractionState();
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var changes = new List<InteractionModeTransition>();
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state.Changed += changes.Add;
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Assert.True(state.EnterUse());
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Assert.False(state.EnterUse());
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Assert.True(state.EnterExamine());
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Assert.True(state.EnterUseItemOnTarget(0x100u));
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Assert.True(state.Clear());
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Assert.Equal(4, changes.Count);
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Assert.Equal(InteractionModeKind.None, state.Current.Kind);
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Assert.Equal(0x100u, changes[2].Current.SourceObjectId);
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}
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[Fact]
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public void UseItemOnTarget_RejectsMissingSource()
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{
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var state = new InteractionState();
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Assert.Throws<ArgumentOutOfRangeException>(() => state.EnterUseItemOnTarget(0));
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Assert.Equal(InteractionMode.None, state.Current);
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}
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[Fact]
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public void ResetSession_RetryRepublishesAndOneObserverCannotStarveAnother()
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{
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var state = new InteractionState();
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state.EnterExamine();
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bool fail = true;
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int delivered = 0;
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state.Changed += _ =>
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{
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if (fail)
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{
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fail = false;
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throw new InvalidOperationException("transient");
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}
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};
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state.Changed += transition =>
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{
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Assert.Equal(InteractionMode.None, transition.Current);
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delivered++;
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};
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Assert.Throws<AggregateException>(state.ResetSession);
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Assert.Equal(1, delivered);
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state.ResetSession();
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Assert.Equal(2, delivered);
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}
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}
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