Files
ytLlive/ytLive.Tests/SceneCatalogTests.cs

78 lines
2.5 KiB
C#

using Xunit;
using ytLive.Models;
using ytLive.ViewModels;
namespace ytLive.Tests;
/// <summary>
/// The app is a five-scene product: Starting/Live/BRB/Chat/Ending. Scenes are
/// worked on by name; you can delete them but never add beyond the set, and the
/// live backdrop belongs to Live alone.
/// </summary>
public class SceneCatalogTests
{
[Fact]
public void SceneCatalog_Defines_The_Five_Canonical_Scenes()
{
Assert.Equal(
new[] { "Starting", "Live", "BRB", "Chat", "Ending" },
SceneCatalog.All);
}
[Theory]
[InlineData("Starting", true)]
[InlineData("Live", true)]
[InlineData("BRB", true)]
[InlineData("Chat", true)]
[InlineData("Ending", true)]
[InlineData("live", true)]
[InlineData("My Scene", false)]
[InlineData("", false)]
[InlineData(null, false)]
public void SceneCatalog_IsCanonical_Matches_By_Name(string? name, bool expected)
{
Assert.Equal(expected, SceneCatalog.IsCanonical(name));
}
[Theory]
[InlineData("Starting", false)]
[InlineData("Live", true)]
[InlineData("BRB", false)]
[InlineData("Chat", false)]
[InlineData("Ending", false)]
public void SceneCatalog_HasBackdrop_Only_For_Live(string name, bool expected)
{
Assert.Equal(expected, SceneCatalog.HasBackdrop(name));
}
[Fact]
public void EnforceBackdropPolicy_Removes_Backdrop_From_NonLive_Scenes()
{
var chat = new Scene { Name = "Chat", HasBackdrop = true };
var live = new Scene { Name = "Live", HasBackdrop = true };
var chatBackdrop = MainViewModel.EnsureBackdrop(chat)!;
var liveBackdrop = MainViewModel.EnsureBackdrop(live)!;
Assert.Contains(chat.Elements, e => ReferenceEquals(e, chatBackdrop));
MainViewModel.EnforceBackdropPolicy(new[] { chat, live });
Assert.False(chat.HasBackdrop);
Assert.DoesNotContain(chat.Elements, e => e is Source { IsBackdrop: true });
Assert.True(live.HasBackdrop);
Assert.Contains(live.Elements, e => ReferenceEquals(e, liveBackdrop));
}
[Fact]
public void EnforceBackdropPolicy_Marks_Live_And_Clears_A_Pre_Policy_Database()
{
var starting = new Scene { Name = "Starting", HasBackdrop = true };
MainViewModel.EnsureBackdrop(starting);
var live = new Scene { Name = "Live", HasBackdrop = false };
MainViewModel.EnforceBackdropPolicy(new[] { starting, live });
Assert.False(starting.HasBackdrop);
Assert.True(live.HasBackdrop);
}
}