48 lines
1.3 KiB
C#
48 lines
1.3 KiB
C#
using KillerPDF.Services;
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using Xunit;
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namespace KillerPDF.Tests;
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public sealed class WheelPageFlipGateTests
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{
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private static readonly DateTime Start = new(2026, 8, 22, 12, 0, 0, DateTimeKind.Utc);
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[Fact]
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public void TwoQuickNotchesAtEdge_ConfirmPageFlip()
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{
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var gate = new WheelPageFlipGate();
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Assert.False(gate.TryConfirm(-120, Start));
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Assert.True(gate.TryConfirm(-120, Start.AddMilliseconds(100)));
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}
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[Fact]
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public void MomentumImmediatelyAfterContentScroll_DoesNotFlip()
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{
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var gate = new WheelPageFlipGate();
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gate.NoteContentScroll(Start);
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Assert.False(gate.TryConfirm(-120, Start.AddMilliseconds(50)));
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Assert.False(gate.TryConfirm(-120, Start.AddMilliseconds(150)));
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}
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[Fact]
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public void OppositeDirection_RestartsConfirmation()
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{
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var gate = new WheelPageFlipGate();
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Assert.False(gate.TryConfirm(-120, Start));
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Assert.False(gate.TryConfirm(120, Start.AddMilliseconds(100)));
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Assert.True(gate.TryConfirm(120, Start.AddMilliseconds(200)));
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}
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[Fact]
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public void SlowNotches_DoNotCombineIntoPageFlip()
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{
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var gate = new WheelPageFlipGate();
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Assert.False(gate.TryConfirm(-120, Start));
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Assert.False(gate.TryConfirm(-120, Start.AddMilliseconds(700)));
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}
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}
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