Files
LlamaCasty/ytLive.Tests/ScoreboardRecorderTests.cs
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gramps 6b6ccd7b0a feat(scoreboard): unit 2 — session lifecycle (start clears, End freezes)
ScoreboardRecorder owns the one scope the numbers promise. StartSession resets and marks running;
Record ignores everything outside a session (a stale tally from the last stream is exactly the
'today' lie this design avoids); EndSession freezes the numbers but stops them moving, so an End
screen can still show them. Changed fires only when a displayed value actually moves, which is what
keeps the strip's raster cache honest.
2026-10-30 14:36:13 -07:00

43 lines
1.5 KiB
C#

using Xunit;
using ytLive.Models;
namespace ytLive.Tests;
/// <summary>The session is the only scope the scoreboard promises, so the rules are: a start clears
/// everything, events outside a session are ignored, and an ended session keeps its numbers but
/// stops moving.</summary>
public class ScoreboardRecorderTests
{
private static ChatMessage Member(string name) => new() { Kind = ChatEventKind.NewMember, AuthorName = name };
[Fact]
public void Starting_a_session_clears_the_tallies_and_only_a_live_session_counts()
{
var recorder = new ScoreboardRecorder();
var changes = 0;
recorder.Changed += () => changes++;
// Outside a session: nothing is counted (no stale carry-over from the last stream).
recorder.Record(Member("Ignored"));
Assert.Equal(0, recorder.State.NewMembers);
recorder.StartSession();
Assert.True(recorder.IsRunning);
recorder.Record(Member("First"));
recorder.Record(Member("Second"));
Assert.Equal(2, recorder.State.NewMembers);
Assert.True(changes >= 2, "each visible change must raise Changed so the strip re-renders");
// End freezes: numbers stay, movement stops.
recorder.EndSession();
Assert.False(recorder.IsRunning);
recorder.Record(Member("AfterEnd"));
Assert.Equal(2, recorder.State.NewMembers);
// The next session starts from zero.
recorder.StartSession();
Assert.Equal(0, recorder.State.NewMembers);
Assert.Null(recorder.State.LastMemberName);
}
}