Add broadcast scheduling features: implement Show and Channel entities, enhance AppDbContext and DependencyInjection for broadcasting, and update API routing. Include migration for new database schema and update documentation for broadcast-related functionalities.
This commit is contained in:
Leonid Pershin
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using TeleWave.Domain.Broadcast;
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using TeleWave.Domain.Broadcast.Scheduling;
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using Xunit;
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namespace TeleWave.Domain.Tests.Broadcast;
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public class SchedulePlannerTests
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{
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private static readonly DateTimeOffset Start = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
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/// <summary>Источник случайности с фиксированной (циклической) последовательностью значений.</summary>
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private sealed class FixedRandom(params int[] values) : IRandomSource
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{
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private int _i;
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public int Next(int maxExclusive) =>
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values.Length == 0 ? 0 : values[_i++ % values.Length] % maxExclusive;
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}
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private static Dictionary<Guid, TimeSpan> Durations(params (Guid Id, int Minutes)[] items) =>
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items.ToDictionary(x => x.Id, x => TimeSpan.FromMinutes(x.Minutes));
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[Fact]
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public void Count_Block_ProducesConsecutiveEpisodes_BackToBack()
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{
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var cs = Guid.NewGuid();
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var show = Guid.NewGuid();
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Guid[] eps = [Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid()];
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var input = new PlannerInput(
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ChannelId: Guid.NewGuid(),
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AdInsertion: AdInsertion.BetweenBlocks,
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AdsPerBreak: 1,
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NextAdIndex: 0,
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Shows: [new PlannerShow(cs, show, 1, BlockMode.Count, 3, eps, 0)],
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AdPool: [],
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Durations: Durations((eps[0], 2), (eps[1], 2), (eps[2], 2), (eps[3], 2)),
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Overrides: [],
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StartTime: Start,
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HorizonEnd: Start.AddSeconds(1)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Equal(3, result.Entries.Count);
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Assert.All(result.Entries, e => Assert.Equal(ScheduleEntryKind.Program, e.Kind));
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Assert.Equal([0, 1, 2], result.Entries.Select(e => e.EpisodeIndex));
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Assert.Equal(Start, result.Entries[0].StartsAtUtc);
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Assert.Equal(result.Entries[0].EndsAtUtc, result.Entries[1].StartsAtUtc);
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Assert.Equal(result.Entries[1].EndsAtUtc, result.Entries[2].StartsAtUtc);
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Assert.Equal(3, result.NextEpisodeIndexByChannelShow[cs]);
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}
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[Fact]
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public void Count_Block_WrapsAtEndOfSeries()
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{
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var cs = Guid.NewGuid();
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Guid[] eps = [Guid.NewGuid(), Guid.NewGuid()];
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var input = BaseInput(
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[new PlannerShow(cs, Guid.NewGuid(), 1, BlockMode.Count, 3, eps, 0)],
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Durations((eps[0], 2), (eps[1], 2)),
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horizonEnd: Start.AddSeconds(1)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Equal([0, 1, 0], result.Entries.Select(e => e.EpisodeIndex));
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Assert.Equal(1, result.NextEpisodeIndexByChannelShow[cs]);
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}
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[Fact]
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public void Duration_Block_TakesEpisodesUntilBudgetReached()
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{
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var cs = Guid.NewGuid();
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Guid[] eps = [Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid(), Guid.NewGuid()];
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var input = BaseInput(
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[new PlannerShow(cs, Guid.NewGuid(), 1, BlockMode.Duration, 25, eps, 0)],
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Durations((eps[0], 10), (eps[1], 10), (eps[2], 10), (eps[3], 10)),
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horizonEnd: Start.AddMinutes(30)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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// 10+10+10 = 30 >= 25 → три серии.
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Assert.Equal(3, result.Entries.Count);
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Assert.Equal([0, 1, 2], result.Entries.Select(e => e.EpisodeIndex));
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Assert.Equal(3, result.NextEpisodeIndexByChannelShow[cs]);
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}
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[Fact]
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public void AdsBetweenBlocks_InsertsAdAfterBlock()
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{
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var cs = Guid.NewGuid();
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Guid ep = Guid.NewGuid(),
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ad0 = Guid.NewGuid(),
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ad1 = Guid.NewGuid();
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var input = new PlannerInput(
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Guid.NewGuid(),
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AdInsertion.BetweenBlocks,
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AdsPerBreak: 1,
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NextAdIndex: 0,
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Shows: [new PlannerShow(cs, Guid.NewGuid(), 1, BlockMode.Count, 1, [ep], 0)],
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AdPool: [ad0, ad1],
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Durations: Durations((ep, 20), (ad0, 1), (ad1, 1)),
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Overrides: [],
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StartTime: Start,
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HorizonEnd: Start.AddSeconds(1)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Equal(2, result.Entries.Count);
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Assert.Equal(ScheduleEntryKind.Program, result.Entries[0].Kind);
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Assert.Equal(ScheduleEntryKind.Ad, result.Entries[1].Kind);
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Assert.Equal(ad0, result.Entries[1].MediaAssetId);
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Assert.Equal(1, result.NextAdIndex);
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}
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[Fact]
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public void AdsBetweenEpisodes_InsertsAdAfterEachEpisode()
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{
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var cs = Guid.NewGuid();
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Guid[] eps = [Guid.NewGuid(), Guid.NewGuid()];
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Guid ad = Guid.NewGuid();
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var input = new PlannerInput(
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Guid.NewGuid(),
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AdInsertion.BetweenEpisodes,
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AdsPerBreak: 1,
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NextAdIndex: 0,
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Shows: [new PlannerShow(cs, Guid.NewGuid(), 1, BlockMode.Count, 2, eps, 0)],
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AdPool: [ad],
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Durations: Durations((eps[0], 20), (eps[1], 20), (ad, 1)),
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Overrides: [],
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StartTime: Start,
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HorizonEnd: Start.AddSeconds(1)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Equal(
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[
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ScheduleEntryKind.Program,
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ScheduleEntryKind.Ad,
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ScheduleEntryKind.Program,
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ScheduleEntryKind.Ad,
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],
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result.Entries.Select(e => e.Kind)
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);
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Assert.Equal(2, result.NextAdIndex);
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}
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[Fact]
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public void WeightedPick_RespectsRoll()
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{
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var a = new PlannerShow(Guid.NewGuid(), Guid.NewGuid(), 3, BlockMode.Count, 1, [Guid.NewGuid()], 0);
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var b = new PlannerShow(Guid.NewGuid(), Guid.NewGuid(), 1, BlockMode.Count, 1, [Guid.NewGuid()], 0);
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var durations = Durations(
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(a.EpisodeAssetIds[0], 20),
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(b.EpisodeAssetIds[0], 20)
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);
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var pickA = SchedulePlanner.Plan(BaseInput([a, b], durations, Start.AddSeconds(1)), new FixedRandom(0));
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var pickB = SchedulePlanner.Plan(BaseInput([a, b], durations, Start.AddSeconds(1)), new FixedRandom(3));
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Assert.Equal(a.ShowId, pickA.Entries[0].ShowId);
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Assert.Equal(b.ShowId, pickB.Entries[0].ShowId);
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}
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[Fact]
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public void ExclusiveOverride_ForcesSingleShow()
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{
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var a = new PlannerShow(Guid.NewGuid(), Guid.NewGuid(), 10, BlockMode.Count, 1, [Guid.NewGuid()], 0);
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var b = new PlannerShow(Guid.NewGuid(), Guid.NewGuid(), 1, BlockMode.Count, 1, [Guid.NewGuid()], 0);
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var durations = Durations((a.EpisodeAssetIds[0], 20), (b.EpisodeAssetIds[0], 20));
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var input = new PlannerInput(
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Guid.NewGuid(),
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AdInsertion.BetweenBlocks,
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0,
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0,
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[a, b],
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[],
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durations,
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Overrides:
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[
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new PlannerOverride(
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Start,
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Start.AddHours(1),
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OverrideMode.Exclusive,
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[new PlannerOverrideShow(b.ShowId, 1)]
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),
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],
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StartTime: Start,
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HorizonEnd: Start.AddSeconds(1)
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);
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Equal(b.ShowId, result.Entries[0].ShowId);
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}
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[Fact]
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public void NoPlayableShows_ReturnsEmpty()
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{
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var input = BaseInput([], new Dictionary<Guid, TimeSpan>(), Start.AddHours(1));
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var result = SchedulePlanner.Plan(input, new FixedRandom(0));
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Assert.Empty(result.Entries);
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}
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private static PlannerInput BaseInput(
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IReadOnlyList<PlannerShow> shows,
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IReadOnlyDictionary<Guid, TimeSpan> durations,
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DateTimeOffset horizonEnd
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) =>
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new(
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ChannelId: Guid.NewGuid(),
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AdInsertion: AdInsertion.BetweenBlocks,
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AdsPerBreak: 0,
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NextAdIndex: 0,
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Shows: shows,
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AdPool: [],
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Durations: durations,
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Overrides: [],
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StartTime: Start,
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HorizonEnd: horizonEnd
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);
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}
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