108 lines
3.9 KiB
C#
108 lines
3.9 KiB
C#
using System.Reactive.Linq;
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using System.Reactive.Threading.Tasks;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging.Abstractions;
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using Microsoft.Extensions.Options;
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using NSubstitute;
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using PLib.Application.Library;
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using PLib.Desktop.Services;
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using PLib.Desktop.Settings;
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using PLib.Desktop.ViewModels;
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using Shouldly;
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namespace PLib.Tests.Settings;
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public sealed class SettingsViewModelTests
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{
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private readonly IAppSettingsStore _store = Substitute.For<IAppSettingsStore>();
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[Fact]
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public async Task Opening_and_saving_without_touching_anything_changes_nothing()
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{
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// Both of these are displayed in a lossier unit than they are stored in: 65 536 bytes
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// shows as 0,06 MB. Converting the untouched field back used to yield 62 915, which
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// silently rewrote the setting and forced a full rescan on every visit to the panel.
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var options = new LibraryOptions
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{
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Folders = [@"C:\videos"],
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MinimumFileSizeInBytes = 65_536,
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ThumbnailPositionRatio = 0.15,
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};
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var (viewModel, outcome) = await SaveAsync(options);
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outcome.RescanRequired.ShouldBeFalse();
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Written.MinimumFileSizeInBytes.ShouldBe(65_536);
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Written.ThumbnailPositionRatio.ShouldBe(0.15);
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viewModel.HasFolders.ShouldBeTrue();
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}
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[Fact]
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public async Task Editing_the_minimum_size_does_write_the_new_value()
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{
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var (_, outcome) = await SaveAsync(
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new LibraryOptions { Folders = [@"C:\videos"], MinimumFileSizeInBytes = 65_536 },
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viewModel => viewModel.MinimumFileSizeMegabytes = 4);
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Written.MinimumFileSizeInBytes.ShouldBe(4 * 1024 * 1024);
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outcome.RescanRequired.ShouldBeTrue();
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}
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[Fact]
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public async Task Removing_a_folder_is_carried_into_the_saved_settings()
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{
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var (_, outcome) = await SaveAsync(
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new LibraryOptions { Folders = [@"C:\a", @"C:\b"] },
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viewModel => viewModel.Folders[0].RemoveCommand.Execute().Subscribe());
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Written.Folders.ShouldBe([@"C:\b"]);
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outcome.RescanRequired.ShouldBeTrue();
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}
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[Fact]
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public async Task Cancelling_writes_nothing()
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{
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var viewModel = Create(new LibraryOptions { Folders = [@"C:\videos"] });
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var closed = viewModel.Closed.FirstAsync().ToTask();
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viewModel.MinimumFileSizeMegabytes = 999;
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await viewModel.CancelCommand.Execute().FirstAsync().ToTask(TestContext.Current.CancellationToken);
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(await closed).Saved.ShouldBeFalse();
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_store.ReceivedCalls().ShouldBeEmpty();
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}
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private AppSettings Written =>
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(AppSettings)_store.ReceivedCalls().Single(call => call.GetMethodInfo().Name == nameof(IAppSettingsStore.SaveAsync))
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.GetArguments()[0]!;
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private async Task<(SettingsViewModel ViewModel, SettingsDialogOutcome Outcome)> SaveAsync(
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LibraryOptions options,
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Action<SettingsViewModel>? edit = null)
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{
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var viewModel = Create(options);
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var closed = viewModel.Closed.FirstAsync().ToTask();
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edit?.Invoke(viewModel);
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await viewModel.SaveCommand.Execute().FirstAsync().ToTask(TestContext.Current.CancellationToken);
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return (viewModel, await closed);
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}
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private SettingsViewModel Create(LibraryOptions options) => new(
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Substitute.For<IServiceScopeFactory>(),
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Monitor(options),
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Monitor(new AppearanceOptions()),
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_store,
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Substitute.For<IFolderPicker>(),
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Substitute.For<IThemeService>(),
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NullLogger<SettingsViewModel>.Instance);
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private static IOptionsMonitor<T> Monitor<T>(T value)
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{
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var monitor = Substitute.For<IOptionsMonitor<T>>();
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monitor.CurrentValue.Returns(value);
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return monitor;
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}
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}
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