42 lines
1.7 KiB
C#
42 lines
1.7 KiB
C#
using Duempelkas.App.Services;
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using Duempelkas.App.Services.Models;
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using Duempelkas.Infrastructure.Services;
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using Xunit;
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namespace Duempelkas.Tests;
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public class FileOperationTests
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{
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[Fact]
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public async Task Cancel_IsNeutral()
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{
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var service = new FileSaveService(new Dialog(null));
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Assert.Equal(FileOperationStatus.Cancelled, (await service.SaveFileAsync([1], "test.pdf")).Status);
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}
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[Fact]
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public async Task SaveAndFailure_AreDistinct_AndOpeningMissingFileIsError()
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{
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var folder = Path.Combine(Path.GetTempPath(), "duempelkas-files-" + Guid.NewGuid().ToString("N"));
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Directory.CreateDirectory(folder);
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try
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{
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var path = Path.Combine(folder, "Prüfung.pdf");
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var service = new FileSaveService(new Dialog(path));
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Assert.Equal(FileOperationStatus.Success, (await service.SaveFileAsync([1, 2, 3], "test.pdf")).Status);
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Assert.Equal(new byte[] { 1, 2, 3 }, await File.ReadAllBytesAsync(path));
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// A directory cannot be overwritten as a file; the existing file is preserved.
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Assert.Equal(FileOperationStatus.Error, (await new FileSaveService(new Dialog(folder)).SaveFileAsync([4], "test.pdf")).Status);
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Assert.Equal(FileOperationStatus.Error, (await service.OpenFileAsync(Path.Combine(folder, "missing.pdf"))).Status);
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Assert.Equal(new byte[] { 1, 2, 3 }, await File.ReadAllBytesAsync(path));
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}
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finally { Directory.Delete(folder, true); }
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}
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private sealed class Dialog(string? path) : IFileDialogService
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{
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public Task<string?> SaveAsync(string suggestedFileName) => Task.FromResult(path);
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public Task<string?> OpenBackupAsync() => Task.FromResult(path);
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}
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}
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