67 lines
2.0 KiB
C#
67 lines
2.0 KiB
C#
using System;
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using System.Linq;
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using Xunit;
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using ytLive.Models;
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using ytLive.Services;
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using ytLive.ViewModels;
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namespace ytLive.Tests;
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/// <summary>
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/// A scene switch in edit mode raises the preview transition with the chosen type and
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/// length, before the staged scene changes, so the preview can animate the old picture.
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/// </summary>
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[Collection("RealApp")]
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public sealed class PreviewTransitionTests
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{
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private readonly RealAppHost _app;
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public PreviewTransitionTests(RealAppHost app) => _app = app;
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[Fact]
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public void Scene_Switch_In_Edit_Mode_Raises_The_Preview_Transition_Before_The_Switch()
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{
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_app.Run(Run);
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}
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private static void Run()
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{
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var tempDb = System.IO.Path.Combine(System.IO.Path.GetTempPath(), $"ytLlive-preview-{Guid.NewGuid():N}.db");
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MainViewModel.LayoutPathOverride = tempDb;
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try
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{
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using (var schema = new LayoutStore(tempDb)) { }
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Microsoft.Data.Sqlite.SqliteConnection.ClearAllPools();
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var vm = new MainViewModel();
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var from = vm.StagedScene!;
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var to = vm.Scenes.First(s => s != from && !s.IsHidden);
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vm.SelectedTransitionType = TransitionType.Fade;
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vm.TransitionDurationMs = 800;
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Scene? stagedWhenRaised = null;
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TransitionType? typeRaised = null;
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double? msRaised = null;
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vm.PreviewTransition += (type, ms) =>
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{
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stagedWhenRaised = vm.StagedScene;
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typeRaised = type;
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msRaised = ms;
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};
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vm.TransitionToScene(to);
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Assert.Same(from, stagedWhenRaised);
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Assert.Equal(TransitionType.Fade, typeRaised);
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Assert.Equal(800, msRaised);
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Assert.Same(to, vm.StagedScene);
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}
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finally
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{
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MainViewModel.LayoutPathOverride = null;
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Microsoft.Data.Sqlite.SqliteConnection.ClearAllPools();
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try { System.IO.File.Delete(tempDb); } catch { }
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}
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}
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}
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