diff --git a/backend/tests/TeleWave.Application.Tests/Admin/DelegatingHandlersTests.cs b/backend/tests/TeleWave.Application.Tests/Admin/DelegatingHandlersTests.cs
new file mode 100644
index 0000000..f1ea3e2
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Admin/DelegatingHandlersTests.cs
@@ -0,0 +1,157 @@
+using NSubstitute;
+using TeleWave.Application.Admin.Roles;
+using TeleWave.Application.Admin.Roles.CreateRole;
+using TeleWave.Application.Admin.Roles.DeleteRole;
+using TeleWave.Application.Admin.Roles.ListRoles;
+using TeleWave.Application.Admin.Roles.UpdateRole;
+using TeleWave.Application.Admin.Users;
+using TeleWave.Application.Admin.Users.DeleteUser;
+using TeleWave.Application.Admin.Users.ResetPassword;
+using TeleWave.Application.Admin.Users.UnblockUser;
+using TeleWave.Application.Auth;
+using TeleWave.Application.Auth.ChangePassword;
+using TeleWave.Application.Common.Interfaces;
+using TeleWave.Application.Common.Models;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Admin;
+
+public class DelegatingHandlersTests
+{
+    private readonly IRoleService _roles = Substitute.For<IRoleService>();
+    private readonly IIdentityService _identity = Substitute.For<IIdentityService>();
+    private readonly ICurrentUser _currentUser = Substitute.For<ICurrentUser>();
+
+    [Fact]
+    public async Task Roles_HandlersDelegateToService()
+    {
+        var id = Guid.NewGuid();
+        var dto = new RoleDto(id, "editor", false);
+        _roles.CreateRoleAsync("editor", Arg.Any<CancellationToken>()).Returns(Result.Success(dto));
+        _roles
+            .UpdateRoleAsync(id, "editor", Arg.Any<CancellationToken>())
+            .Returns(Result.Success(dto));
+        _roles.DeleteRoleAsync(id, Arg.Any<CancellationToken>()).Returns(Result.Success());
+        _roles.ListRolesAsync(Arg.Any<CancellationToken>()).Returns(new List<RoleDto> { dto });
+
+        Assert.True(
+            (
+                await new CreateRoleCommandHandler(_roles).Handle(
+                    new CreateRoleCommand("editor"),
+                    default
+                )
+            ).IsSuccess
+        );
+        Assert.True(
+            (
+                await new UpdateRoleCommandHandler(_roles).Handle(
+                    new UpdateRoleCommand(id, "editor"),
+                    default
+                )
+            ).IsSuccess
+        );
+        Assert.True(
+            (
+                await new DeleteRoleCommandHandler(_roles).Handle(
+                    new DeleteRoleCommand(id),
+                    default
+                )
+            ).IsSuccess
+        );
+        Assert.Single(
+            await new ListRolesQueryHandler(_roles).Handle(new ListRolesQuery(), default)
+        );
+    }
+
+    [Fact]
+    public async Task UnblockUser_And_ResetPassword_Delegate()
+    {
+        var id = Guid.NewGuid();
+        _identity.UnblockUserAsync(id, Arg.Any<CancellationToken>()).Returns(Result.Success());
+        _identity
+            .ResetPasswordAsync(id, "Password1", Arg.Any<CancellationToken>())
+            .Returns(Result.Success());
+
+        Assert.True(
+            (
+                await new UnblockUserCommandHandler(_identity).Handle(
+                    new UnblockUserCommand(id),
+                    default
+                )
+            ).IsSuccess
+        );
+        Assert.True(
+            (
+                await new ResetUserPasswordCommandHandler(_identity).Handle(
+                    new ResetUserPasswordCommand(id, "Password1"),
+                    default
+                )
+            ).IsSuccess
+        );
+        await _identity
+            .Received(1)
+            .ResetPasswordAsync(id, "Password1", Arg.Any<CancellationToken>());
+    }
+
+    [Fact]
+    public async Task DeleteUser_CannotDeleteSelf()
+    {
+        var me = Guid.NewGuid();
+        _currentUser.UserId.Returns(me);
+
+        var result = await new DeleteUserCommandHandler(_identity, _currentUser).Handle(
+            new DeleteUserCommand(me),
+            default
+        );
+
+        Assert.Equal(UserErrors.CannotDeleteSelf, result.Error);
+        await _identity
+            .DidNotReceive()
+            .DeleteUserAsync(Arg.Any<Guid>(), Arg.Any<CancellationToken>());
+    }
+
+    [Fact]
+    public async Task DeleteUser_OtherUser_Delegates()
+    {
+        _currentUser.UserId.Returns(Guid.NewGuid());
+        var target = Guid.NewGuid();
+        _identity.DeleteUserAsync(target, Arg.Any<CancellationToken>()).Returns(Result.Success());
+
+        var result = await new DeleteUserCommandHandler(_identity, _currentUser).Handle(
+            new DeleteUserCommand(target),
+            default
+        );
+
+        Assert.True(result.IsSuccess);
+    }
+
+    [Fact]
+    public async Task ChangePassword_Unauthorized_WhenNoCurrentUser()
+    {
+        _currentUser.UserId.Returns((Guid?)null);
+
+        var result = await new ChangePasswordCommandHandler(_identity, _currentUser).Handle(
+            new ChangePasswordCommand("old", "New12345"),
+            default
+        );
+
+        Assert.Equal(AuthErrors.Unauthorized, result.Error);
+    }
+
+    [Fact]
+    public async Task ChangePassword_Delegates_WhenAuthenticated()
+    {
+        var me = Guid.NewGuid();
+        _currentUser.UserId.Returns(me);
+        _identity
+            .ChangePasswordAsync(me, "old", "New12345", Arg.Any<CancellationToken>())
+            .Returns(Result.Success());
+
+        var result = await new ChangePasswordCommandHandler(_identity, _currentUser).Handle(
+            new ChangePasswordCommand("old", "New12345"),
+            default
+        );
+
+        Assert.True(result.IsSuccess);
+    }
+}
diff --git a/backend/tests/TeleWave.Application.Tests/Broadcast/BumperVariantHandlersTests.cs b/backend/tests/TeleWave.Application.Tests/Broadcast/BumperVariantHandlersTests.cs
new file mode 100644
index 0000000..8b25b0c
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Broadcast/BumperVariantHandlersTests.cs
@@ -0,0 +1,139 @@
+using Microsoft.EntityFrameworkCore;
+using TeleWave.Application.Broadcast;
+using TeleWave.Application.Broadcast.Bumpers;
+using TeleWave.Application.Tests.Support;
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Broadcast;
+
+public class BumperVariantHandlersTests
+{
+    private static readonly DateTimeOffset T0 = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    [Fact]
+    public async Task AddVariant_AutoNames_WhenBlank()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var template = channel.BumperTemplates[0];
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new AddBumperTextVariantCommandHandler(db).Handle(
+            new AddBumperTextVariantCommand(channel.Id, template.Id, "  "),
+            CancellationToken.None
+        );
+        Assert.True(result.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify
+            .Channels.Include(c => c.BumperTemplates)
+                .ThenInclude(t => t.Variants)
+            .FirstAsync(c => c.Id == channel.Id);
+        var variants = stored.BumperTemplates[0].Variants;
+        Assert.Equal(2, variants.Count);
+        Assert.Contains(variants, v => v.Name == "Текст 2");
+    }
+
+    [Fact]
+    public async Task AddVariant_UnknownTemplate_ReturnsNotFound()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new AddBumperTextVariantCommandHandler(db).Handle(
+            new AddBumperTextVariantCommand(channel.Id, Guid.NewGuid(), "x"),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.BumperTemplateNotFound, result.Error);
+    }
+
+    [Fact]
+    public async Task UpdateVariant_ChangesFields()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var template = channel.BumperTemplates[0];
+        var variant = template.Variants[0];
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new UpdateBumperTextVariantCommandHandler(db).Handle(
+            new UpdateBumperTextVariantCommand(
+                channel.Id,
+                template.Id,
+                variant.Id,
+                "Custom",
+                BumperTextKind.Free,
+                "NOW",
+                "NEXT",
+                "line1",
+                "line2",
+                BumperTrigger.Both,
+                7
+            ),
+            CancellationToken.None
+        );
+        Assert.True(result.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify
+            .Channels.Include(c => c.BumperTemplates)
+                .ThenInclude(t => t.Variants)
+            .FirstAsync(c => c.Id == channel.Id);
+        var v = stored.BumperTemplates[0].Variants[0];
+        Assert.Equal("Custom", v.Name);
+        Assert.Equal(BumperTextKind.Free, v.Kind);
+        Assert.Equal(7, v.Weight);
+        Assert.Equal(BumperTrigger.Both, v.Trigger);
+    }
+
+    [Fact]
+    public async Task RemoveVariant_CannotRemoveLast_ButRemovesExtra()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var template = channel.BumperTemplates[0];
+        var only = template.Variants[0];
+        var extra = template.AddVariant("Text 2");
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new RemoveBumperTextVariantCommandHandler(db);
+
+        var okRemove = await handler.Handle(
+            new RemoveBumperTextVariantCommand(channel.Id, template.Id, extra.Id),
+            CancellationToken.None
+        );
+        Assert.True(okRemove.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var db2 = fixture.New();
+        var lastGuard = await new RemoveBumperTextVariantCommandHandler(db2).Handle(
+            new RemoveBumperTextVariantCommand(channel.Id, template.Id, only.Id),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.CannotRemoveLastBumperTextVariant, lastGuard.Error);
+    }
+}
diff --git a/backend/tests/TeleWave.Application.Tests/Broadcast/ChannelHandlersTests.cs b/backend/tests/TeleWave.Application.Tests/Broadcast/ChannelHandlersTests.cs
new file mode 100644
index 0000000..263f876
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Broadcast/ChannelHandlersTests.cs
@@ -0,0 +1,324 @@
+using Microsoft.EntityFrameworkCore;
+using TeleWave.Application.Broadcast;
+using TeleWave.Application.Broadcast.AddChannelAd;
+using TeleWave.Application.Broadcast.AddChannelShow;
+using TeleWave.Application.Broadcast.CreateChannel;
+using TeleWave.Application.Broadcast.CreateOverride;
+using TeleWave.Application.Broadcast.DeleteOverride;
+using TeleWave.Application.Broadcast.RemoveChannelShow;
+using TeleWave.Application.Broadcast.UpdateChannelSettings;
+using TeleWave.Application.Broadcast.UpdateChannelShow;
+using TeleWave.Application.Tests.Support;
+using TeleWave.Domain.Broadcast;
+using TeleWave.Domain.Library;
+using TeleWave.Domain.Media;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Broadcast;
+
+public class ChannelHandlersTests
+{
+    private static readonly DateTimeOffset T0 = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    [Fact]
+    public async Task CreateChannel_Succeeds_AndRejectsDuplicateSlug()
+    {
+        var fixture = new TestDb();
+        await using var db = fixture.New();
+
+        var ok = await new CreateChannelCommandHandler(db).Handle(
+            new CreateChannelCommand("News", "news"),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        var dup = await new CreateChannelCommandHandler(db).Handle(
+            new CreateChannelCommand("Other", "news"),
+            CancellationToken.None
+        );
+        Assert.False(dup.IsSuccess);
+        Assert.Equal(ChannelErrors.DuplicateSlug, dup.Error);
+    }
+
+    [Fact]
+    public async Task AddChannelShow_HappyPath_AndErrors()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var show = Show.Create("S", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new AddChannelShowCommandHandler(db);
+
+        // неизвестный канал
+        var noChannel = await handler.Handle(
+            new AddChannelShowCommand(Guid.NewGuid(), show.Id, 1, BlockMode.Count, 1),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.NotFound, noChannel.Error);
+
+        // неизвестное шоу
+        var noShow = await handler.Handle(
+            new AddChannelShowCommand(channel.Id, Guid.NewGuid(), 1, BlockMode.Count, 1),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.ShowNotFound, noShow.Error);
+
+        // ок
+        var ok = await handler.Handle(
+            new AddChannelShowCommand(channel.Id, show.Id, 2, BlockMode.Count, 3),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        // повторно — уже добавлено
+        await using var db2 = fixture.New();
+        var dup = await new AddChannelShowCommandHandler(db2).Handle(
+            new AddChannelShowCommand(channel.Id, show.Id, 1, BlockMode.Count, 1),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.ShowAlreadyAdded, dup.Error);
+    }
+
+    [Fact]
+    public async Task RemoveChannelShow_RemovesOrReportsNotFound()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var cs = channel.AddShow(Guid.NewGuid(), 1, BlockMode.Count, 1);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new RemoveChannelShowCommandHandler(db);
+
+        var missing = await handler.Handle(
+            new RemoveChannelShowCommand(channel.Id, Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.ChannelShowNotFound, missing.Error);
+
+        var ok = await handler.Handle(
+            new RemoveChannelShowCommand(channel.Id, cs.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+    }
+
+    [Fact]
+    public async Task AddChannelAd_HappyPath_AndAssetNotFound()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var asset = MediaAsset.Register("clip.mp4", ".mp4", MediaSource.Upload);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            seed.MediaAssets.Add(asset);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new AddChannelAdCommandHandler(db);
+
+        var noAsset = await handler.Handle(
+            new AddChannelAdCommand(channel.Id, Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.AssetNotFound, noAsset.Error);
+
+        var ok = await handler.Handle(
+            new AddChannelAdCommand(channel.Id, asset.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+    }
+
+    [Fact]
+    public async Task UpdateChannelSettings_UpdatesBumperChances()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new UpdateChannelSettingsCommandHandler(db).Handle(
+            new UpdateChannelSettingsCommand(
+                channel.Id,
+                "c",
+                true,
+                AdInsertion.BetweenBlocks,
+                1,
+                true,
+                new BumperSettingsInput(
+                    BumperFont.Sans,
+                    5,
+                    BumperSelection.WeightedRandom,
+                    0.5,
+                    0.2
+                ),
+                null
+            ),
+            CancellationToken.None
+        );
+        Assert.True(result.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify.Channels.FindAsync(channel.Id);
+        Assert.Equal(0.5, stored!.BumperShowChangeChance);
+        Assert.Equal(0.2, stored.BumperEpisodeChangeChance);
+        Assert.Equal(BumperSelection.WeightedRandom, stored.BumperSelection);
+    }
+
+    [Fact]
+    public async Task UpdateChannelShow_SetsPreferredHours()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var cs = channel.AddShow(Guid.NewGuid(), 1, BlockMode.Count, 1);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new UpdateChannelShowCommandHandler(db).Handle(
+            new UpdateChannelShowCommand(
+                channel.Id,
+                cs.Id,
+                3,
+                BlockMode.Count,
+                2,
+                true,
+                4,
+                [new HourWindowInput(18, 23)]
+            ),
+            CancellationToken.None
+        );
+        Assert.True(result.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify
+            .Channels.Include(c => c.Shows)
+                .ThenInclude(s => s.PreferredHours)
+            .FirstAsync(c => c.Id == channel.Id);
+        var show = Assert.Single(stored.Shows);
+        Assert.Equal(4, show.PreferredWeightMultiplier);
+        Assert.Single(show.PreferredHours);
+    }
+
+    [Fact]
+    public async Task CreateOverride_OneTime_Weekly_AndValidation()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var show = Show.Create("S", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new CreateProgrammingOverrideCommandHandler(db);
+        OverrideShowInput[] shows = [new OverrideShowInput(show.Id, 1)];
+
+        // Разовое окно — ок.
+        var oneTime = await handler.Handle(
+            new CreateProgrammingOverrideCommand(
+                channel.Id,
+                OverrideMode.Exclusive,
+                OverrideRecurrence.OneTime,
+                T0,
+                T0.AddHours(2),
+                null,
+                null,
+                null,
+                shows
+            ),
+            CancellationToken.None
+        );
+        Assert.True(oneTime.IsSuccess);
+
+        // Еженедельное — ок.
+        var weekly = await handler.Handle(
+            new CreateProgrammingOverrideCommand(
+                channel.Id,
+                OverrideMode.Boost,
+                OverrideRecurrence.Weekly,
+                null,
+                null,
+                6,
+                600,
+                720,
+                shows
+            ),
+            CancellationToken.None
+        );
+        Assert.True(weekly.IsSuccess);
+
+        // Невалидное окно (end <= start).
+        var bad = await handler.Handle(
+            new CreateProgrammingOverrideCommand(
+                channel.Id,
+                OverrideMode.Exclusive,
+                OverrideRecurrence.OneTime,
+                T0.AddHours(2),
+                T0,
+                null,
+                null,
+                null,
+                shows
+            ),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.InvalidOverrideWindow, bad.Error);
+    }
+
+    [Fact]
+    public async Task DeleteOverride_RemovesOrReportsNotFound()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var ovr = channel.AddOverride(OverrideMode.Exclusive, T0, T0.AddHours(1));
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new DeleteProgrammingOverrideCommandHandler(db);
+
+        var missing = await handler.Handle(
+            new DeleteProgrammingOverrideCommand(channel.Id, Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.Equal(ChannelErrors.OverrideNotFound, missing.Error);
+
+        var ok = await handler.Handle(
+            new DeleteProgrammingOverrideCommand(channel.Id, ovr.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+    }
+}
diff --git a/backend/tests/TeleWave.Application.Tests/Broadcast/QueryHandlersTests.cs b/backend/tests/TeleWave.Application.Tests/Broadcast/QueryHandlersTests.cs
new file mode 100644
index 0000000..e22d4a7
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Broadcast/QueryHandlersTests.cs
@@ -0,0 +1,286 @@
+using Microsoft.EntityFrameworkCore;
+using NSubstitute;
+using TeleWave.Application.Broadcast;
+using TeleWave.Application.Broadcast.Bumpers;
+using TeleWave.Application.Broadcast.GetChannel;
+using TeleWave.Application.Broadcast.GetSchedule;
+using TeleWave.Application.Broadcast.ListChannels;
+using TeleWave.Application.Broadcast.RemoveChannelAd;
+using TeleWave.Application.Common.Interfaces;
+using TeleWave.Application.Library.DeleteShow;
+using TeleWave.Application.Library.GetShow;
+using TeleWave.Application.Media.GetMedia;
+using TeleWave.Application.Tests.Support;
+using TeleWave.Domain.Broadcast;
+using TeleWave.Domain.Library;
+using TeleWave.Domain.Media;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Broadcast;
+
+public class QueryHandlersTests
+{
+    private static readonly DateTimeOffset T0 = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    [Fact]
+    public async Task GetChannel_ReturnsDto_WithBumperAndOverride()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("News", "news", T0);
+        var show = Show.Create("S", ShowKind.Series);
+        channel.AddShow(show.Id, 1, BlockMode.Count, 1);
+        channel.AddWeeklyOverride(OverrideMode.Exclusive, 6, 600, 720).AddShow(show.Id, 1);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new GetChannelQueryHandler(db).Handle(
+            new GetChannelQuery(channel.Id),
+            CancellationToken.None
+        );
+
+        Assert.True(result.IsSuccess);
+        Assert.Equal("News", result.Value.Name);
+        Assert.Single(result.Value.BumperTemplates);
+        Assert.Single(result.Value.Overrides);
+        Assert.Equal(OverrideRecurrence.Weekly, result.Value.Overrides[0].Recurrence);
+    }
+
+    [Fact]
+    public async Task GetChannel_UnknownId_ReturnsNotFound()
+    {
+        var fixture = new TestDb();
+        await using var db = fixture.New();
+        var result = await new GetChannelQueryHandler(db).Handle(
+            new GetChannelQuery(Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.False(result.IsSuccess);
+    }
+
+    [Fact]
+    public async Task ListChannels_ReturnsSummaries()
+    {
+        var fixture = new TestDb();
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(Channel.Create("A", "a", T0));
+            seed.Channels.Add(Channel.Create("B", "b", T0));
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new ListChannelsQueryHandler(db).Handle(
+            new ListChannelsQuery(),
+            CancellationToken.None
+        );
+        Assert.Equal(2, result.Count);
+    }
+
+    [Fact]
+    public async Task GetChannelSchedule_ReturnsEntriesWithBumperLabel()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var show = Show.Create("Show A", ShowKind.Series);
+        var variant = channel.BumperTemplates[0].Variants[0];
+        var asset = MediaAsset.Register("Show.A.S01E01.mkv", ".mkv", MediaSource.Upload);
+        var program = ScheduleEntry.Program(
+            channel.Id,
+            asset.Id,
+            T0,
+            T0.AddMinutes(20),
+            show.Id,
+            0
+        );
+        var bumper = ScheduleEntry.Bumper(
+            channel.Id,
+            Guid.NewGuid(),
+            T0.AddMinutes(20),
+            T0.AddMinutes(20).AddSeconds(8),
+            show.Id,
+            variant.Id
+        );
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            seed.Channels.Add(channel);
+            seed.MediaAssets.Add(asset);
+            seed.ScheduleEntries.Add(program);
+            seed.ScheduleEntries.Add(bumper);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var result = await new GetChannelScheduleQueryHandler(db).Handle(
+            new GetChannelScheduleQuery(channel.Id, T0.AddMinutes(-5), T0.AddHours(1)),
+            CancellationToken.None
+        );
+
+        Assert.True(result.IsSuccess);
+        Assert.Equal(2, result.Value.Count);
+        var bumperDto = result.Value.Single(e => e.Kind == ScheduleEntryKind.Bumper);
+        Assert.NotNull(bumperDto.BumperName);
+    }
+
+    [Fact]
+    public async Task GetShow_ReturnsDtoOrNotFound()
+    {
+        var fixture = new TestDb();
+        var show = Show.Create("A", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var ok = await new GetShowQueryHandler(db).Handle(
+            new GetShowQuery(show.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+
+        var missing = await new GetShowQueryHandler(db).Handle(
+            new GetShowQuery(Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.False(missing.IsSuccess);
+    }
+
+    [Fact]
+    public async Task GetMedia_ReturnsDtoOrNotFound()
+    {
+        var fixture = new TestDb();
+        var asset = MediaAsset.Register("clip.mp4", ".mp4", MediaSource.Upload);
+        await using (var seed = fixture.New())
+        {
+            seed.MediaAssets.Add(asset);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var ok = await new GetMediaAssetQueryHandler(db).Handle(
+            new GetMediaAssetQuery(asset.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+
+        var missing = await new GetMediaAssetQueryHandler(db).Handle(
+            new GetMediaAssetQuery(Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.False(missing.IsSuccess);
+    }
+
+    [Fact]
+    public async Task DeleteShow_RemovesOrNotFound()
+    {
+        var fixture = new TestDb();
+        var show = Show.Create("A", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var missing = await new DeleteShowCommandHandler(db).Handle(
+            new DeleteShowCommand(Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.False(missing.IsSuccess);
+
+        var ok = await new DeleteShowCommandHandler(db).Handle(
+            new DeleteShowCommand(show.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+    }
+
+    [Fact]
+    public async Task RemoveChannelAd_RemovesOrNotFound()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        var ad = channel.AddAd(Guid.NewGuid());
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new RemoveChannelAdCommandHandler(db);
+
+        Assert.Equal(
+            ChannelErrors.AdNotFound,
+            (
+                await handler.Handle(
+                    new RemoveChannelAdCommand(channel.Id, Guid.NewGuid()),
+                    CancellationToken.None
+                )
+            ).Error
+        );
+        Assert.True(
+            (
+                await handler.Handle(
+                    new RemoveChannelAdCommand(channel.Id, ad.Id),
+                    CancellationToken.None
+                )
+            ).IsSuccess
+        );
+    }
+
+    [Fact]
+    public async Task AddAndRemoveBumperTemplate_WorkThroughStorage()
+    {
+        var fixture = new TestDb();
+        var channel = Channel.Create("c", "c", T0);
+        await using (var seed = fixture.New())
+        {
+            seed.Channels.Add(channel);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        Guid templateId;
+        await using (var db = fixture.New())
+        {
+            var added = await new AddBumperTemplateCommandHandler(db).Handle(
+                new AddBumperTemplateCommand(channel.Id, ""),
+                CancellationToken.None
+            );
+            Assert.True(added.IsSuccess);
+            templateId = added.Value;
+            await db.SaveChangesAsync(CancellationToken.None);
+        }
+
+        var storage = Substitute.For<IBumperTemplateStorage>();
+        await using (var db = fixture.New())
+        {
+            var removed = await new RemoveBumperTemplateCommandHandler(db, storage).Handle(
+                new RemoveBumperTemplateCommand(channel.Id, templateId),
+                CancellationToken.None
+            );
+            Assert.True(removed.IsSuccess);
+        }
+        storage.Received(1).DeleteTemplate(templateId);
+
+        // дефолтный блок удалить нельзя
+        await using (var db = fixture.New())
+        {
+            var def = await db
+                .Channels.Include(c => c.BumperTemplates)
+                .FirstAsync(c => c.Id == channel.Id);
+            var result = await new RemoveBumperTemplateCommandHandler(db, storage).Handle(
+                new RemoveBumperTemplateCommand(channel.Id, def.BumperTemplates[0].Id),
+                CancellationToken.None
+            );
+            Assert.Equal(ChannelErrors.CannotRemoveDefaultBumperTemplate, result.Error);
+        }
+    }
+}
diff --git a/backend/tests/TeleWave.Application.Tests/Library/ShowHandlersTests.cs b/backend/tests/TeleWave.Application.Tests/Library/ShowHandlersTests.cs
new file mode 100644
index 0000000..b3bb145
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Library/ShowHandlersTests.cs
@@ -0,0 +1,163 @@
+using Microsoft.EntityFrameworkCore;
+using TeleWave.Application.Library;
+using TeleWave.Application.Library.AddEpisode;
+using TeleWave.Application.Library.CreateShow;
+using TeleWave.Application.Library.RemoveEpisode;
+using TeleWave.Application.Library.RenameShow;
+using TeleWave.Application.Library.SetShowOriginalName;
+using TeleWave.Application.Tests.Support;
+using TeleWave.Domain.Library;
+using TeleWave.Domain.Media;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Library;
+
+public class ShowHandlersTests
+{
+    [Fact]
+    public async Task CreateShow_PersistsShow()
+    {
+        var fixture = new TestDb();
+        await using var db = fixture.New();
+
+        var result = await new CreateShowCommandHandler(db).Handle(
+            new CreateShowCommand("Симпсоны", ShowKind.Series, "desc", "The Simpsons"),
+            CancellationToken.None
+        );
+        Assert.True(result.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify.Shows.FindAsync(result.Value);
+        Assert.Equal("Симпсоны", stored!.Name);
+        Assert.Equal("The Simpsons", stored.OriginalName);
+    }
+
+    [Fact]
+    public async Task RenameShow_ChangesName_OrNotFound()
+    {
+        var fixture = new TestDb();
+        var show = Show.Create("Old", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var missing = await new RenameShowCommandHandler(db).Handle(
+            new RenameShowCommand(Guid.NewGuid(), "New"),
+            CancellationToken.None
+        );
+        Assert.Equal(ShowErrors.NotFound, missing.Error);
+
+        var ok = await new RenameShowCommandHandler(db).Handle(
+            new RenameShowCommand(show.Id, "  New  "),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        Assert.Equal("New", (await verify.Shows.FindAsync(show.Id))!.Name);
+    }
+
+    [Fact]
+    public async Task SetOriginalName_TrimsAndClears()
+    {
+        var fixture = new TestDb();
+        var show = Show.Create("A", ShowKind.Series);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var ok = await new SetShowOriginalNameCommandHandler(db).Handle(
+            new SetShowOriginalNameCommand(show.Id, "  Orig "),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        Assert.Equal("Orig", (await verify.Shows.FindAsync(show.Id))!.OriginalName);
+    }
+
+    [Fact]
+    public async Task AddEpisode_ParsesNumbers_AndGuardsSingle()
+    {
+        var fixture = new TestDb();
+        var series = Show.Create("Series", ShowKind.Series);
+        var single = Show.Create("Movie", ShowKind.Single);
+        single.AddEpisode(Guid.NewGuid()); // уже занята единственная серия
+        var asset = MediaAsset.Register("The.Show.S03E07.WEBDL.mkv", ".mkv", MediaSource.Upload);
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(series);
+            seed.Shows.Add(single);
+            seed.MediaAssets.Add(asset);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new AddEpisodeCommandHandler(db);
+
+        // неизвестный ассет
+        var noAsset = await handler.Handle(
+            new AddEpisodeCommand(series.Id, Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.Equal(ShowErrors.AssetNotFound, noAsset.Error);
+
+        // single уже имеет серию
+        var singleGuard = await handler.Handle(
+            new AddEpisodeCommand(single.Id, asset.Id),
+            CancellationToken.None
+        );
+        Assert.Equal(ShowErrors.SingleAlreadyHasEpisode, singleGuard.Error);
+
+        // ок + распознавание S03E07
+        var ok = await handler.Handle(
+            new AddEpisodeCommand(series.Id, asset.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+        await db.SaveChangesAsync(CancellationToken.None);
+
+        await using var verify = fixture.New();
+        var stored = await verify.Shows.Include(s => s.Episodes).FirstAsync(s => s.Id == series.Id);
+        var episode = Assert.Single(stored.Episodes);
+        Assert.Equal(3, episode.Season);
+        Assert.Equal(7, episode.Episode);
+    }
+
+    [Fact]
+    public async Task RemoveEpisode_RemovesOrReportsNotFound()
+    {
+        var fixture = new TestDb();
+        var show = Show.Create("Series", ShowKind.Series);
+        var ep = show.AddEpisode(Guid.NewGuid());
+        await using (var seed = fixture.New())
+        {
+            seed.Shows.Add(show);
+            await seed.SaveChangesAsync(CancellationToken.None);
+        }
+
+        await using var db = fixture.New();
+        var handler = new RemoveEpisodeCommandHandler(db);
+
+        var missing = await handler.Handle(
+            new RemoveEpisodeCommand(show.Id, Guid.NewGuid()),
+            CancellationToken.None
+        );
+        Assert.Equal(ShowErrors.EpisodeNotFound, missing.Error);
+
+        var ok = await handler.Handle(
+            new RemoveEpisodeCommand(show.Id, ep.Id),
+            CancellationToken.None
+        );
+        Assert.True(ok.IsSuccess);
+    }
+}
diff --git a/backend/tests/TeleWave.Application.Tests/Support/TestDb.cs b/backend/tests/TeleWave.Application.Tests/Support/TestDb.cs
new file mode 100644
index 0000000..252731a
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Support/TestDb.cs
@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using TeleWave.Infrastructure.Persistence;
+
+namespace TeleWave.Application.Tests.Support;
+
+/// <summary>
+/// Общий InMemory-стенд поверх реального <see cref="AppDbContext"/> (с настоящими EF-конфигурациями).
+/// Каждый экземпляр — своя изолированная БД; <see cref="New"/> отдаёт новый контекст на ту же БД,
+/// чтобы можно было перечитать сохранённое свежим контекстом.
+/// </summary>
+internal sealed class TestDb
+{
+    private readonly string _name = $"tw-{Guid.NewGuid():N}";
+
+    public AppDbContext New() =>
+        new(new DbContextOptionsBuilder<AppDbContext>().UseInMemoryDatabase(_name).Options);
+}
diff --git a/backend/tests/TeleWave.Application.Tests/TeleWave.Application.Tests.csproj b/backend/tests/TeleWave.Application.Tests/TeleWave.Application.Tests.csproj
index 2e6a52f..fb22ea2 100644
--- a/backend/tests/TeleWave.Application.Tests/TeleWave.Application.Tests.csproj
+++ b/backend/tests/TeleWave.Application.Tests/TeleWave.Application.Tests.csproj
@@ -25,5 +25,6 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\src\TeleWave.Application\TeleWave.Application.csproj" />
+    <ProjectReference Include="..\..\src\TeleWave.Infrastructure\TeleWave.Infrastructure.csproj" />
   </ItemGroup>
 </Project>
diff --git a/backend/tests/TeleWave.Application.Tests/Validators/ValidatorTests.cs b/backend/tests/TeleWave.Application.Tests/Validators/ValidatorTests.cs
new file mode 100644
index 0000000..42a5b88
--- /dev/null
+++ b/backend/tests/TeleWave.Application.Tests/Validators/ValidatorTests.cs
@@ -0,0 +1,142 @@
+using TeleWave.Application.Admin.Users.CreateUser;
+using TeleWave.Application.Admin.Users.ResetPassword;
+using TeleWave.Application.Broadcast;
+using TeleWave.Application.Broadcast.Bumpers;
+using TeleWave.Application.Broadcast.CreateOverride;
+using TeleWave.Application.Broadcast.UpdateChannelSettings;
+using TeleWave.Application.Broadcast.UpdateChannelShow;
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Application.Tests.Validators;
+
+public class ValidatorTests
+{
+    [Fact]
+    public void UpdateChannelShow_RejectsBadWeightMultiplierAndWindows()
+    {
+        var v = new UpdateChannelShowCommandValidator();
+
+        var good = new UpdateChannelShowCommand(
+            Guid.NewGuid(),
+            Guid.NewGuid(),
+            5,
+            BlockMode.Count,
+            3,
+            true,
+            4,
+            [new HourWindowInput(18, 23)]
+        );
+        Assert.True(v.Validate(good).IsValid);
+
+        var badMultiplier = good with { PreferredWeightMultiplier = 0 };
+        Assert.False(v.Validate(badMultiplier).IsValid);
+
+        var badWindow = good with { PreferredHours = [new HourWindowInput(23, 20)] };
+        Assert.False(v.Validate(badWindow).IsValid);
+
+        var badWeight = good with { Weight = 0 };
+        Assert.False(v.Validate(badWeight).IsValid);
+    }
+
+    [Fact]
+    public void UpdateBumperTextVariant_ChecksLengthsAndWeight()
+    {
+        var v = new UpdateBumperTextVariantCommandValidator();
+
+        var good = new UpdateBumperTextVariantCommand(
+            Guid.NewGuid(),
+            Guid.NewGuid(),
+            Guid.NewGuid(),
+            "Name",
+            BumperTextKind.NowNext,
+            "NOW",
+            "NEXT",
+            "l1",
+            "l2",
+            BumperTrigger.Both,
+            3
+        );
+        Assert.True(v.Validate(good).IsValid);
+
+        Assert.False(v.Validate(good with { Name = "" }).IsValid);
+        Assert.False(v.Validate(good with { Weight = -1 }).IsValid);
+        Assert.False(v.Validate(good with { Line1 = new string('x', 121) }).IsValid);
+    }
+
+    [Fact]
+    public void UpdateChannelSettings_ChecksRanges()
+    {
+        var v = new UpdateChannelSettingsCommandValidator();
+        var bumper = new BumperSettingsInput(
+            BumperFont.Sans,
+            10,
+            BumperSelection.Rotation,
+            0.5,
+            0.5
+        );
+
+        var good = new UpdateChannelSettingsCommand(
+            Guid.NewGuid(),
+            "Name",
+            true,
+            AdInsertion.BetweenBlocks,
+            2,
+            true,
+            bumper,
+            null
+        );
+        Assert.True(v.Validate(good).IsValid);
+
+        Assert.False(v.Validate(good with { Name = "" }).IsValid);
+        Assert.False(v.Validate(good with { AdsPerBreak = 99 }).IsValid);
+        Assert.False(
+            v.Validate(good with { Bumper = bumper with { ShowChangeChance = 2 } }).IsValid
+        );
+    }
+
+    [Fact]
+    public void CreateOverride_RequiresShows_WithValidWeights()
+    {
+        var v = new CreateProgrammingOverrideCommandValidator();
+
+        var good = new CreateProgrammingOverrideCommand(
+            Guid.NewGuid(),
+            OverrideMode.Boost,
+            OverrideRecurrence.OneTime,
+            DateTimeOffset.UtcNow,
+            DateTimeOffset.UtcNow.AddHours(1),
+            null,
+            null,
+            null,
+            [new OverrideShowInput(Guid.NewGuid(), 3)]
+        );
+        Assert.True(v.Validate(good).IsValid);
+
+        Assert.False(v.Validate(good with { Shows = [] }).IsValid);
+        Assert.False(
+            v.Validate(good with { Shows = [new OverrideShowInput(Guid.NewGuid(), 0)] }).IsValid
+        );
+    }
+
+    [Fact]
+    public void ResetUserPassword_RequiresMinLength()
+    {
+        var v = new ResetUserPasswordCommandValidator();
+
+        Assert.True(v.Validate(new ResetUserPasswordCommand(Guid.NewGuid(), "Password1")).IsValid);
+        Assert.False(v.Validate(new ResetUserPasswordCommand(Guid.NewGuid(), "short")).IsValid);
+        Assert.False(v.Validate(new ResetUserPasswordCommand(Guid.Empty, "Password1")).IsValid);
+    }
+
+    [Fact]
+    public void CreateUser_ChecksNameAndPassword()
+    {
+        var v = new CreateUserCommandValidator();
+
+        Assert.True(v.Validate(new CreateUserCommand("bob", "Password1", Guid.NewGuid())).IsValid);
+        Assert.False(v.Validate(new CreateUserCommand("ab", "Password1", Guid.NewGuid())).IsValid);
+        Assert.False(v.Validate(new CreateUserCommand("bob", "short", Guid.NewGuid())).IsValid);
+        Assert.False(v.Validate(new CreateUserCommand("bob", "Password1", Guid.Empty)).IsValid);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTemplateTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTemplateTests.cs
new file mode 100644
index 0000000..eb01dd2
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTemplateTests.cs
@@ -0,0 +1,115 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class BumperTemplateTests
+{
+    private static BumperTemplate NewTemplate() =>
+        Channel.Create("c", "c", DateTimeOffset.UnixEpoch).AddBumperTemplate("Block");
+
+    [Fact]
+    public void Create_HasDefaultsAndOneVariant()
+    {
+        var t = NewTemplate();
+
+        Assert.Equal(BumperTemplate.DefaultBackgroundColor, t.BackgroundColor);
+        Assert.Null(t.AudioExtension);
+        Assert.Null(t.BackgroundImageId);
+        Assert.Equal(0, t.Revision);
+        var v = Assert.Single(t.Variants);
+        Assert.Equal(BumperTrigger.OnShowChange, v.Trigger);
+    }
+
+    [Fact]
+    public void AddVariant_AppendsWithNextPosition()
+    {
+        var t = NewTemplate();
+
+        var v1 = t.AddVariant("Text 2");
+
+        Assert.Equal(1, v1.Position);
+        Assert.Equal(2, t.Variants.Count);
+        Assert.Equal(v1, t.FindVariant(v1.Id));
+        Assert.Null(t.FindVariant(Guid.NewGuid()));
+    }
+
+    [Fact]
+    public void RemoveVariant_CannotRemoveLast()
+    {
+        var t = NewTemplate();
+        var first = t.Variants[0];
+
+        Assert.False(t.RemoveVariant(first.Id)); // единственный — нельзя
+
+        var second = t.AddVariant("Text 2");
+        Assert.True(t.RemoveVariant(second.Id));
+        Assert.False(t.RemoveVariant(Guid.NewGuid()));
+        Assert.Single(t.Variants);
+    }
+
+    [Fact]
+    public void UpdateStyle_ChangesColorsAndName()
+    {
+        var t = NewTemplate();
+
+        t.UpdateStyle("New", "0x111111", "0x222222", "0x333333", "black");
+
+        Assert.Equal("New", t.Name);
+        Assert.Equal("0x111111", t.BackgroundColor);
+        Assert.Equal("0x333333", t.AccentColor);
+        Assert.Equal("black", t.TextColor);
+    }
+
+    [Fact]
+    public void SetAudio_BumpsRevision_AndStoresDuration()
+    {
+        var t = NewTemplate();
+
+        t.SetAudio(".mp3", 12.5);
+
+        Assert.Equal(".mp3", t.AudioExtension);
+        Assert.Equal(12.5, t.AudioDurationSeconds);
+        Assert.Equal(1, t.Revision);
+    }
+
+    [Fact]
+    public void SetAudio_NonPositiveDuration_StoresNull()
+    {
+        var t = NewTemplate();
+        t.SetAudio(".wav", 0);
+        Assert.Null(t.AudioDurationSeconds);
+    }
+
+    [Fact]
+    public void ClearAudio_ResetsAndBumpsRevisionOnceWhenPresent()
+    {
+        var t = NewTemplate();
+        t.SetAudio(".mp3", 5); // rev 1
+
+        t.ClearAudio(); // rev 2
+        Assert.Null(t.AudioExtension);
+        Assert.Equal(2, t.Revision);
+
+        t.ClearAudio(); // уже пусто — ревизия не двигается
+        Assert.Equal(2, t.Revision);
+    }
+
+    [Fact]
+    public void BackgroundImage_SetAndClear_BumpRevision()
+    {
+        var t = NewTemplate();
+        var img = Guid.NewGuid();
+
+        t.SetBackgroundImage(img); // rev 1
+        Assert.Equal(img, t.BackgroundImageId);
+        Assert.Equal(1, t.Revision);
+
+        t.ClearBackgroundImage(); // rev 2
+        Assert.Null(t.BackgroundImageId);
+        Assert.Equal(2, t.Revision);
+
+        t.ClearBackgroundImage(); // уже пусто
+        Assert.Equal(2, t.Revision);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTextVariantTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTextVariantTests.cs
new file mode 100644
index 0000000..04deadc
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/BumperTextVariantTests.cs
@@ -0,0 +1,55 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class BumperTextVariantTests
+{
+    private static BumperTextVariant NewVariant() =>
+        Channel
+            .Create("c", "c", DateTimeOffset.UnixEpoch)
+            .AddBumperTemplate("b")
+            .AddVariant("Text");
+
+    [Fact]
+    public void Create_HasDefaultLabelsAndWeight()
+    {
+        var v = NewVariant();
+
+        Assert.Equal(BumperTextKind.NowNext, v.Kind);
+        Assert.Equal(BumperTextVariant.DefaultNowLabel, v.NowLabel);
+        Assert.Equal(BumperTextVariant.DefaultNextLabel, v.NextLabel);
+        Assert.Equal(BumperTextVariant.DefaultWeight, v.Weight);
+        Assert.Equal(string.Empty, v.Line1);
+    }
+
+    [Fact]
+    public void Update_SetsFields_AndClampsNegativeWeightToZero()
+    {
+        var v = NewVariant();
+
+        v.Update("Name", BumperTextKind.Free, "NOW", "NEXT", "l1", "l2", BumperTrigger.Both, -5);
+
+        Assert.Equal("Name", v.Name);
+        Assert.Equal(BumperTextKind.Free, v.Kind);
+        Assert.Equal("NOW", v.NowLabel);
+        Assert.Equal("l1", v.Line1);
+        Assert.Equal(BumperTrigger.Both, v.Trigger);
+        Assert.Equal(0, v.Weight);
+    }
+
+    [Theory]
+    [InlineData(BumperTrigger.OnShowChange, true, true)]
+    [InlineData(BumperTrigger.OnShowChange, false, false)]
+    [InlineData(BumperTrigger.BetweenEpisodes, true, false)]
+    [InlineData(BumperTrigger.BetweenEpisodes, false, true)]
+    [InlineData(BumperTrigger.Both, true, true)]
+    [InlineData(BumperTrigger.Both, false, true)]
+    public void Matches_FollowsTrigger(BumperTrigger trigger, bool isShowChange, bool expected)
+    {
+        var v = NewVariant();
+        v.Update("n", BumperTextKind.NowNext, "a", "b", "", "", trigger, 1);
+
+        Assert.Equal(expected, v.Matches(isShowChange));
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelShowTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelShowTests.cs
new file mode 100644
index 0000000..bc3da73
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelShowTests.cs
@@ -0,0 +1,89 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class ChannelShowTests
+{
+    private static ChannelShow NewShow() =>
+        Channel
+            .Create("c", "c", DateTimeOffset.UnixEpoch)
+            .AddShow(Guid.NewGuid(), 1, BlockMode.Count, 1);
+
+    [Fact]
+    public void Create_HasDefaultPreferredMultiplier_AndNoWindows()
+    {
+        var cs = NewShow();
+
+        Assert.Equal(ChannelShow.DefaultPreferredWeightMultiplier, cs.PreferredWeightMultiplier);
+        Assert.Empty(cs.PreferredHours);
+        Assert.True(cs.IsEnabled);
+        Assert.Equal(0, cs.NextEpisodeIndex);
+    }
+
+    [Fact]
+    public void Update_ChangesCoreFields()
+    {
+        var cs = NewShow();
+
+        cs.Update(9, BlockMode.Duration, 45, false);
+
+        Assert.Equal(9, cs.Weight);
+        Assert.Equal(BlockMode.Duration, cs.BlockMode);
+        Assert.Equal(45, cs.BlockValue);
+        Assert.False(cs.IsEnabled);
+    }
+
+    [Fact]
+    public void SetPreferredHours_ClampsMultiplier_AndNormalizesWindows()
+    {
+        var cs = NewShow();
+
+        cs.SetPreferredHours(
+            0, // < 1 → должно стать 1
+            [
+                (18, 23), // валидное
+                (10, 10), // start == end → отбрасывается
+                (5, 25), // end > 24 → отбрасывается
+                (-1, 3), // start < 0 → отбрасывается
+                (18, 23), // дубликат → схлопывается
+            ]
+        );
+
+        Assert.Equal(1, cs.PreferredWeightMultiplier);
+        var window = Assert.Single(cs.PreferredHours);
+        Assert.Equal(18, window.StartHour);
+        Assert.Equal(23, window.EndHour);
+    }
+
+    [Fact]
+    public void SetPreferredHours_ReplacesPreviousSet()
+    {
+        var cs = NewShow();
+        cs.SetPreferredHours(3, [(1, 2)]);
+        cs.SetPreferredHours(2, [(8, 9), (20, 22)]);
+
+        Assert.Equal(2, cs.PreferredWeightMultiplier);
+        Assert.Equal(2, cs.PreferredHours.Count);
+    }
+
+    [Fact]
+    public void IsPreferredAt_ChecksWindows()
+    {
+        var cs = NewShow();
+        cs.SetPreferredHours(3, [(18, 23)]);
+
+        Assert.True(cs.IsPreferredAt(18));
+        Assert.True(cs.IsPreferredAt(22));
+        Assert.False(cs.IsPreferredAt(23)); // конец исключается
+        Assert.False(cs.IsPreferredAt(9));
+    }
+
+    [Fact]
+    public void SetNextEpisodeIndex_MovesCursor()
+    {
+        var cs = NewShow();
+        cs.SetNextEpisodeIndex(5);
+        Assert.Equal(5, cs.NextEpisodeIndex);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelTests.cs
new file mode 100644
index 0000000..05840d3
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/ChannelTests.cs
@@ -0,0 +1,167 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class ChannelTests
+{
+    private static readonly DateTimeOffset Epoch = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    private static Channel NewChannel() => Channel.Create("News", "news", Epoch);
+
+    [Fact]
+    public void Create_SetsDefaults_AndSeedsDefaultBumperTemplate()
+    {
+        var channel = NewChannel();
+
+        Assert.NotEqual(Guid.Empty, channel.Id);
+        Assert.Equal("News", channel.Name);
+        Assert.Equal("news", channel.Slug);
+        Assert.True(channel.IsEnabled);
+        Assert.Equal(Epoch, channel.EpochUtc);
+        Assert.Equal(AdInsertion.BetweenBlocks, channel.AdInsertion);
+        Assert.False(channel.BumpersEnabled);
+        Assert.Equal(BumperSelection.Rotation, channel.BumperSelection);
+        Assert.Equal(1.0, channel.BumperShowChangeChance);
+        Assert.Equal(1.0, channel.BumperEpisodeChangeChance);
+
+        var template = Assert.Single(channel.BumperTemplates);
+        Assert.True(template.IsDefault);
+        Assert.Equal(0, template.Position);
+        Assert.Single(template.Variants); // дефолтный подблок
+    }
+
+    [Fact]
+    public void UpdateSettings_ChangesFields()
+    {
+        var channel = NewChannel();
+        var filler = Guid.NewGuid();
+
+        channel.UpdateSettings("N2", false, AdInsertion.BetweenEpisodes, 4, true, filler);
+
+        Assert.Equal("N2", channel.Name);
+        Assert.False(channel.IsEnabled);
+        Assert.Equal(AdInsertion.BetweenEpisodes, channel.AdInsertion);
+        Assert.Equal(4, channel.AdsPerBreak);
+        Assert.True(channel.BumpersEnabled);
+        Assert.Equal(filler, channel.FillerAssetId);
+    }
+
+    [Theory]
+    [InlineData(-1, 2.0, -5.0, 1.0, 0.0)]
+    [InlineData(30, 0.3, 0.9, 0.3, 0.9)]
+    public void UpdateBumperSettings_ClampsChancesAndInterval(
+        int interval,
+        double show,
+        double episode,
+        double expectedShow,
+        double expectedEpisode
+    )
+    {
+        var channel = NewChannel();
+
+        channel.UpdateBumperSettings(
+            BumperFont.Serif,
+            interval,
+            BumperSelection.WeightedRandom,
+            show,
+            episode
+        );
+
+        Assert.Equal(BumperFont.Serif, channel.BumperFont);
+        Assert.Equal(Math.Max(0, interval), channel.BumperMinIntervalMinutes);
+        Assert.Equal(BumperSelection.WeightedRandom, channel.BumperSelection);
+        Assert.Equal(expectedShow, channel.BumperShowChangeChance);
+        Assert.Equal(expectedEpisode, channel.BumperEpisodeChangeChance);
+    }
+
+    [Fact]
+    public void AddBumperTemplate_AppendsWithNextPosition()
+    {
+        var channel = NewChannel();
+
+        var t1 = channel.AddBumperTemplate("Block 2");
+        var t2 = channel.AddBumperTemplate("Block 3");
+
+        Assert.Equal(1, t1.Position);
+        Assert.Equal(2, t2.Position);
+        Assert.False(t1.IsDefault);
+        Assert.Equal(3, channel.BumperTemplates.Count);
+        Assert.Equal(t1, channel.FindBumperTemplate(t1.Id));
+        Assert.Null(channel.FindBumperTemplate(Guid.NewGuid()));
+    }
+
+    [Fact]
+    public void RemoveBumperTemplate_CannotRemoveDefault_CanRemoveOthers()
+    {
+        var channel = NewChannel();
+        var def = channel.BumperTemplates[0];
+        var extra = channel.AddBumperTemplate("Block 2");
+
+        Assert.False(channel.RemoveBumperTemplate(def.Id));
+        Assert.True(channel.RemoveBumperTemplate(extra.Id));
+        Assert.False(channel.RemoveBumperTemplate(Guid.NewGuid()));
+        Assert.Single(channel.BumperTemplates);
+    }
+
+    [Fact]
+    public void Shows_AddFindRemoveHas()
+    {
+        var channel = NewChannel();
+        var showId = Guid.NewGuid();
+
+        var cs = channel.AddShow(showId, 5, BlockMode.Count, 3);
+
+        Assert.Equal(showId, cs.ShowId);
+        Assert.Equal(5, cs.Weight);
+        Assert.True(channel.HasShow(showId));
+        Assert.Equal(cs, channel.FindShow(cs.Id));
+        Assert.True(channel.RemoveShow(cs.Id));
+        Assert.False(channel.RemoveShow(cs.Id));
+        Assert.False(channel.HasShow(showId));
+    }
+
+    [Fact]
+    public void Ads_AppendWithPosition_AndRemove()
+    {
+        var channel = NewChannel();
+        var a1 = channel.AddAd(Guid.NewGuid());
+        var a2 = channel.AddAd(Guid.NewGuid());
+
+        Assert.Equal(0, a1.Position);
+        Assert.Equal(1, a2.Position);
+        Assert.True(channel.HasAd(a1.MediaAssetId));
+        Assert.True(channel.RemoveAd(a1.Id));
+        Assert.False(channel.RemoveAd(a1.Id));
+    }
+
+    [Fact]
+    public void AddOverride_OneTime_AndWeekly()
+    {
+        var channel = NewChannel();
+
+        var one = channel.AddOverride(OverrideMode.Exclusive, Epoch, Epoch.AddHours(2));
+        Assert.Equal(OverrideRecurrence.OneTime, one.Recurrence);
+        Assert.Equal(Epoch, one.StartsAtUtc);
+
+        var weekly = channel.AddWeeklyOverride(OverrideMode.Boost, 6, 600, 720);
+        Assert.Equal(OverrideRecurrence.Weekly, weekly.Recurrence);
+        Assert.Equal(6, weekly.DayOfWeek);
+        Assert.Equal(600, weekly.StartMinute);
+
+        Assert.Equal(2, channel.Overrides.Count);
+        Assert.True(channel.RemoveOverride(one.Id));
+        Assert.False(channel.RemoveOverride(Guid.NewGuid()));
+    }
+
+    [Fact]
+    public void Cursors_AreMovedBySetters()
+    {
+        var channel = NewChannel();
+        channel.SetNextAdIndex(7);
+        channel.SetNextBumperIndex(3);
+
+        Assert.Equal(7, channel.NextAdIndex);
+        Assert.Equal(3, channel.NextBumperIndex);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/DomainRecordFactoryTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/DomainRecordFactoryTests.cs
new file mode 100644
index 0000000..f271744
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/DomainRecordFactoryTests.cs
@@ -0,0 +1,50 @@
+using TeleWave.Domain.Broadcast;
+using TeleWave.Domain.Settings;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+/// <summary>Мелкие фабрики/сеттеры простых сущностей, которые нигде не покрыты напрямую.</summary>
+public class DomainRecordFactoryTests
+{
+    [Fact]
+    public void ChannelShowHour_Contains_HalfOpenWindow()
+    {
+        var cs = Channel
+            .Create("c", "c", DateTimeOffset.UnixEpoch)
+            .AddShow(Guid.NewGuid(), 1, BlockMode.Count, 1);
+        cs.SetPreferredHours(2, [(9, 12)]);
+        var hour = Assert.Single(cs.PreferredHours);
+
+        Assert.False(hour.Contains(8));
+        Assert.True(hour.Contains(9));
+        Assert.True(hour.Contains(11));
+        Assert.False(hour.Contains(12));
+    }
+
+    [Fact]
+    public void BumperAsset_Create_StoresPair()
+    {
+        var from = Guid.NewGuid();
+        var to = Guid.NewGuid();
+        var asset = Guid.NewGuid();
+
+        var b = BumperAsset.Create(from, to, "sig", asset);
+
+        Assert.Equal(from, b.FromShowId);
+        Assert.Equal(to, b.ToShowId);
+        Assert.Equal("sig", b.Signature);
+        Assert.Equal(asset, b.MediaAssetId);
+    }
+
+    [Fact]
+    public void AppSetting_CreateAndSetValue()
+    {
+        var s = AppSetting.Create("site.title", "TeleWave");
+        Assert.Equal("site.title", s.Key);
+        Assert.Equal("TeleWave", s.Value);
+
+        s.SetValue("New");
+        Assert.Equal("New", s.Value);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/ProgrammingOverrideTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/ProgrammingOverrideTests.cs
new file mode 100644
index 0000000..bfa6bfc
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/ProgrammingOverrideTests.cs
@@ -0,0 +1,59 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class ProgrammingOverrideTests
+{
+    private static readonly DateTimeOffset Epoch = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    private static Channel NewChannel() => Channel.Create("c", "c", Epoch);
+
+    [Fact]
+    public void OneTime_Covers_OnlyInsideWindow()
+    {
+        var ovr = NewChannel()
+            .AddOverride(OverrideMode.Exclusive, Epoch.AddHours(1), Epoch.AddHours(3));
+
+        Assert.False(ovr.Covers(Epoch.AddMinutes(59)));
+        Assert.True(ovr.Covers(Epoch.AddHours(1)));
+        Assert.True(ovr.Covers(Epoch.AddHours(2)));
+        Assert.False(ovr.Covers(Epoch.AddHours(3))); // конец исключается
+    }
+
+    [Fact]
+    public void AddShow_AttachesWithWeight()
+    {
+        var ovr = NewChannel().AddOverride(OverrideMode.Boost, Epoch, Epoch.AddHours(1));
+        var showId = Guid.NewGuid();
+
+        var os = ovr.AddShow(showId, 4);
+
+        Assert.Equal(showId, os.ShowId);
+        Assert.Equal(4, os.Weight);
+        Assert.Single(ovr.Shows);
+    }
+
+    [Fact]
+    public void Weekly_Covers_MatchingDayAndMinuteWindow()
+    {
+        // Epoch = 2026-01-01 — четверг (DayOfWeek=4).
+        var day = (int)Epoch.UtcDateTime.DayOfWeek;
+        var ovr = NewChannel().AddWeeklyOverride(OverrideMode.Exclusive, day, 600, 720); // 10:00–12:00
+
+        Assert.True(ovr.Covers(Epoch.AddMinutes(600))); // 10:00 того же дня
+        Assert.True(ovr.Covers(Epoch.AddMinutes(719))); // 11:59
+        Assert.False(ovr.Covers(Epoch.AddMinutes(720))); // 12:00 — конец исключается
+        Assert.False(ovr.Covers(Epoch.AddMinutes(599))); // 09:59
+    }
+
+    [Fact]
+    public void Weekly_Covers_NextWeekSameDay()
+    {
+        var day = (int)Epoch.UtcDateTime.DayOfWeek;
+        var ovr = NewChannel().AddWeeklyOverride(OverrideMode.Exclusive, day, 0, 1440);
+
+        Assert.True(ovr.Covers(Epoch.AddDays(7).AddHours(5)));
+        Assert.False(ovr.Covers(Epoch.AddDays(1).AddHours(5))); // другой день недели
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Broadcast/ScheduleEntryTests.cs b/backend/tests/TeleWave.Domain.Tests/Broadcast/ScheduleEntryTests.cs
new file mode 100644
index 0000000..1d072b9
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Broadcast/ScheduleEntryTests.cs
@@ -0,0 +1,54 @@
+using TeleWave.Domain.Broadcast;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Broadcast;
+
+public class ScheduleEntryTests
+{
+    private static readonly DateTimeOffset Start = new(2026, 1, 1, 0, 0, 0, TimeSpan.Zero);
+
+    [Fact]
+    public void Program_SetsKindAndEpg()
+    {
+        var channel = Guid.NewGuid();
+        var asset = Guid.NewGuid();
+        var show = Guid.NewGuid();
+
+        var e = ScheduleEntry.Program(channel, asset, Start, Start.AddMinutes(20), show, 3);
+
+        Assert.Equal(ScheduleEntryKind.Program, e.Kind);
+        Assert.Equal(show, e.ShowId);
+        Assert.Equal(3, e.EpisodeIndex);
+        Assert.Null(e.BumperVariantId);
+    }
+
+    [Fact]
+    public void Ad_HasNoShow()
+    {
+        var e = ScheduleEntry.Ad(Guid.NewGuid(), Guid.NewGuid(), Start, Start.AddMinutes(1));
+
+        Assert.Equal(ScheduleEntryKind.Ad, e.Kind);
+        Assert.Null(e.ShowId);
+        Assert.Null(e.EpisodeIndex);
+    }
+
+    [Fact]
+    public void Bumper_CarriesShowAndVariant()
+    {
+        var toShow = Guid.NewGuid();
+        var variant = Guid.NewGuid();
+
+        var e = ScheduleEntry.Bumper(
+            Guid.NewGuid(),
+            Guid.NewGuid(),
+            Start,
+            Start.AddSeconds(8),
+            toShow,
+            variant
+        );
+
+        Assert.Equal(ScheduleEntryKind.Bumper, e.Kind);
+        Assert.Equal(toShow, e.ShowId);
+        Assert.Equal(variant, e.BumperVariantId);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Images/ImageTests.cs b/backend/tests/TeleWave.Domain.Tests/Images/ImageTests.cs
new file mode 100644
index 0000000..15e581f
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Images/ImageTests.cs
@@ -0,0 +1,28 @@
+using TeleWave.Domain.Images;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Images;
+
+public class ImageTests
+{
+    [Theory]
+    [InlineData("jpg", ".jpg")]
+    [InlineData(".PNG", ".png")]
+    [InlineData("  .WebP ", ".webp")]
+    public void Create_NormalizesExtension(string input, string expected)
+    {
+        var img = Image.Create(ImageCategory.ShowPoster, input, "poster.jpg");
+
+        Assert.Equal(expected, img.FileExtension);
+        Assert.Equal(ImageCategory.ShowPoster, img.Category);
+        Assert.Equal("poster.jpg", img.OriginalFileName);
+        Assert.NotEqual(Guid.Empty, img.Id);
+    }
+
+    [Fact]
+    public void Create_BlankFileName_BecomesNull()
+    {
+        var img = Image.Create(ImageCategory.Library, ".jpg", "   ");
+        Assert.Null(img.OriginalFileName);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Library/ShowEpisodeTests.cs b/backend/tests/TeleWave.Domain.Tests/Library/ShowEpisodeTests.cs
new file mode 100644
index 0000000..f3e11be
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Library/ShowEpisodeTests.cs
@@ -0,0 +1,53 @@
+using TeleWave.Domain.Library;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Library;
+
+public class ShowEpisodeTests
+{
+    private static ShowEpisode NewEpisode() =>
+        Show.Create("A", ShowKind.Series).AddEpisode(Guid.NewGuid());
+
+    [Fact]
+    public void SetNumbers_StoresSeasonEpisode()
+    {
+        var e = NewEpisode();
+        e.SetNumbers(3, 7);
+
+        Assert.Equal(3, e.Season);
+        Assert.Equal(7, e.Episode);
+    }
+
+    [Fact]
+    public void ApplyMetadata_SetsFields_StillOnlyWhenProvided()
+    {
+        var e = NewEpisode();
+        var still = Guid.NewGuid();
+        var air = new DateOnly(2020, 5, 1);
+
+        e.ApplyMetadata("Title", "Overview", still, air);
+        Assert.Equal("Title", e.Title);
+        Assert.Equal("Overview", e.Overview);
+        Assert.Equal(still, e.StillImageId);
+        Assert.Equal(air, e.AirDate);
+
+        // Повторно без кадра — существующий не затирается.
+        e.ApplyMetadata("T2", "O2", null, null);
+        Assert.Equal(still, e.StillImageId);
+        Assert.Equal("T2", e.Title);
+    }
+
+    [Fact]
+    public void ClearMetadata_ResetsAll()
+    {
+        var e = NewEpisode();
+        e.ApplyMetadata("T", "O", Guid.NewGuid(), new DateOnly(2020, 1, 1));
+
+        e.ClearMetadata();
+
+        Assert.Null(e.Title);
+        Assert.Null(e.Overview);
+        Assert.Null(e.StillImageId);
+        Assert.Null(e.AirDate);
+    }
+}
diff --git a/backend/tests/TeleWave.Domain.Tests/Library/ShowTests.cs b/backend/tests/TeleWave.Domain.Tests/Library/ShowTests.cs
new file mode 100644
index 0000000..556d97e
--- /dev/null
+++ b/backend/tests/TeleWave.Domain.Tests/Library/ShowTests.cs
@@ -0,0 +1,128 @@
+using TeleWave.Domain.Library;
+using Xunit;
+
+namespace TeleWave.Domain.Tests.Library;
+
+public class ShowTests
+{
+    [Fact]
+    public void Create_NormalizesOriginalName()
+    {
+        var s = Show.Create("Симпсоны", ShowKind.Series, "desc", "  The Simpsons  ");
+
+        Assert.Equal("Симпсоны", s.Name);
+        Assert.Equal("The Simpsons", s.OriginalName);
+        Assert.Equal(ShowKind.Series, s.Kind);
+        Assert.Equal("desc", s.Description);
+    }
+
+    [Fact]
+    public void Create_BlankOriginalName_BecomesNull()
+    {
+        var s = Show.Create("X", ShowKind.Single, originalName: "   ");
+        Assert.Null(s.OriginalName);
+    }
+
+    [Fact]
+    public void RenameAndSetName_ChangeDisplayName()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        s.Rename("B", "d");
+        Assert.Equal("B", s.Name);
+        Assert.Equal("d", s.Description);
+
+        s.SetName("C");
+        Assert.Equal("C", s.Name);
+    }
+
+    [Fact]
+    public void SetOriginalName_TrimsOrClears()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        s.SetOriginalName("  orig ");
+        Assert.Equal("orig", s.OriginalName);
+        s.SetOriginalName("");
+        Assert.Null(s.OriginalName);
+    }
+
+    [Fact]
+    public void AddEpisode_AppendsInOrder()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        var e0 = s.AddEpisode(Guid.NewGuid());
+        var e1 = s.AddEpisode(Guid.NewGuid());
+
+        Assert.Equal(0, e0.Position);
+        Assert.Equal(1, e1.Position);
+        Assert.Equal(2, s.Episodes.Count);
+    }
+
+    [Fact]
+    public void RemoveEpisode_RemovesById()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        var e = s.AddEpisode(Guid.NewGuid());
+
+        Assert.True(s.RemoveEpisode(e.Id));
+        Assert.False(s.RemoveEpisode(e.Id));
+        Assert.Empty(s.Episodes);
+    }
+
+    [Fact]
+    public void CanAddEpisode_SingleAllowsOnlyOne()
+    {
+        var single = Show.Create("Movie", ShowKind.Single);
+        Assert.True(single.CanAddEpisode);
+        single.AddEpisode(Guid.NewGuid());
+        Assert.False(single.CanAddEpisode);
+
+        var series = Show.Create("Series", ShowKind.Series);
+        series.AddEpisode(Guid.NewGuid());
+        Assert.True(series.CanAddEpisode);
+    }
+
+    [Fact]
+    public void ApplyMetadata_SetsProviderYearPoster_KeepsDescriptionIfBlank()
+    {
+        var s = Show.Create("A", ShowKind.Series, description: "old");
+        var poster = Guid.NewGuid();
+
+        s.ApplyMetadata("tmdb", "42", description: null, year: 1999, posterImageId: poster);
+
+        Assert.Equal("tmdb", s.MetadataProvider);
+        Assert.Equal("42", s.MetadataExternalId);
+        Assert.Equal(1999, s.Year);
+        Assert.Equal(poster, s.PosterImageId);
+        Assert.Equal("old", s.Description); // пустое описание не затирает
+    }
+
+    [Fact]
+    public void UpdateMetadataManual_MarksManualAndClearsExternal()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        s.ApplyMetadata("tmdb", "1", "d", 2000, Guid.NewGuid());
+
+        s.UpdateMetadataManual("new", 2001);
+
+        Assert.Equal("manual", s.MetadataProvider);
+        Assert.Null(s.MetadataExternalId);
+        Assert.Equal("new", s.Description);
+        Assert.Equal(2001, s.Year);
+    }
+
+    [Fact]
+    public void SetPosterImage_AndClearMetadata()
+    {
+        var s = Show.Create("A", ShowKind.Series);
+        s.ApplyMetadata("tmdb", "1", "d", 2000, Guid.NewGuid());
+        s.SetPosterImage(Guid.NewGuid());
+
+        s.ClearMetadata();
+
+        Assert.Null(s.MetadataProvider);
+        Assert.Null(s.MetadataExternalId);
+        Assert.Null(s.Year);
+        Assert.Null(s.PosterImageId);
+        Assert.Null(s.Description);
+    }
+}