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feat: implement GetRandomFileName for simulated Path #569

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merged 1 commit into from
Apr 19, 2024
Merged

feat: implement GetRandomFileName for simulated Path #569

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13 changes: 1 addition & 12 deletions Source/Testably.Abstractions.Testing/Helpers/Execute.MacPath.cs
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Original file line number Diff line number Diff line change
@@ -1,13 +1,9 @@
using System.Linq;

namespace Testably.Abstractions.Testing.Helpers;
namespace Testably.Abstractions.Testing.Helpers;

internal partial class Execute
{
private sealed class MacPath(MockFileSystem fileSystem) : LinuxPath(fileSystem)
{
private readonly MockFileSystem _fileSystem = fileSystem;

private string? _tempPath;

/// <inheritdoc cref="IPath.GetTempPath()" />
Expand All @@ -16,12 +12,5 @@ public override string GetTempPath()
_tempPath ??= $"/var/folders/{RandomString(2)}/{RandomString(2)}_{RandomString(27)}/T/";
return _tempPath;
}

private string RandomString(int length)
{
const string chars = "abcdefghijklmnopqrstuvwxyz0123456789";
return new string(Enumerable.Repeat(chars, length)
.Select(s => s[_fileSystem.RandomSystem.Random.Shared.Next(s.Length)]).ToArray());
}
}
}
11 changes: 9 additions & 2 deletions Source/Testably.Abstractions.Testing/Helpers/Execute.SimulatedPath.cs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
using System;
using System.Diagnostics;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Text;
#if FEATURE_FILESYSTEM_NET7
using Testably.Abstractions.Testing.Storage;
Expand Down Expand Up @@ -283,7 +283,7 @@ public ReadOnlySpan<char> GetPathRoot(ReadOnlySpan<char> path)

/// <inheritdoc cref="IPath.GetRandomFileName()" />
public string GetRandomFileName()
=> System.IO.Path.GetRandomFileName();
=> $"{RandomString(8)}.{RandomString(3)}";

#if FEATURE_PATH_RELATIVE
/// <inheritdoc cref="IPath.GetRelativePath(string, string)" />
Expand Down Expand Up @@ -489,6 +489,13 @@ private string JoinInternal(string?[] paths)
}
#endif

protected string RandomString(int length)
{
const string chars = "abcdefghijklmnopqrstuvwxyz0123456789";
return new string(Enumerable.Repeat(chars, length)
.Select(s => s[fileSystem.RandomSystem.Random.Shared.Next(s.Length)]).ToArray());
}

private bool TryGetExtensionIndex(string path, [NotNullWhen(true)] out int? dotIndex)
{
for (int i = path.Length - 1; i >= 0; i--)
Expand Down
8 changes: 8 additions & 0 deletions Tests/Testably.Abstractions.Tests/FileSystem/Path/GetRandomFileNameTests.cs
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Expand Up @@ -8,6 +8,14 @@ public abstract partial class GetRandomFileNameTests<TFileSystem>
: FileSystemTestBase<TFileSystem>
where TFileSystem : IFileSystem
{
[SkippableFact]
public void GetRandomFileName_ShouldMatch8Dot3Pattern()
{
string result = FileSystem.Path.GetRandomFileName();

result.Should().Match("????????.???");
}

[SkippableFact]
public void GetRandomFileName_ShouldReturnRandomFileNameWithExtension()
{
Expand Down
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