Clean up and formatting

src/Ramstack.FileSystem.Amazon/S3UploadStream.cs

@@ -100,14 +100,13 @@ public override void Write(ReadOnlySpan<byte> buffer)
         try
         {
             _stream.Write(buffer);
-
             if (_stream.Length >= MinPartSize)
                 UploadPart();
         }
-        catch (Exception exception)
+        catch
         {
             Abort();
-            ExceptionDispatchInfo.Throw(exception);
+            throw;
         }
     }
 
@@ -124,10 +123,10 @@ public override async ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, Cancella
             if (_stream.Length >= MinPartSize)
                 await UploadPartAsync(cancellationToken).ConfigureAwait(false);
         }
-        catch (Exception exception)
+        catch
         {
             await AbortAsync(cancellationToken).ConfigureAwait(false);
-            ExceptionDispatchInfo.Throw(exception);
+            throw;
         }
     }
 
@@ -254,10 +253,10 @@ private async ValueTask UploadPartAsync(CancellationToken cancellationToken)
                 _stream.Position = 0;
                 _stream.SetLength(0);
             }
-            catch (Exception exception)
+            catch
             {
                 await AbortAsync(cancellationToken).ConfigureAwait(false);
-                ExceptionDispatchInfo.Throw(exception);
+                throw;
             }
         }
     }

src/Ramstack.FileSystem.Google/GcsWriteStream.cs

@@ -3,14 +3,14 @@
 namespace Ramstack.FileSystem.Google;
 
 /// <summary>
-/// Represents a temporary write-only stream for Google Cloud Storage operations, redirecting all write operations to a temporary file.
-/// Upon disposing or closing the stream, the data is transferred to the Azure Blob storage.
+/// Represents a temporary write-only stream that buffers data to a temporary file before uploading it to Google Cloud Storage.
+/// Data is committed to the storage bucket when the stream is disposed or closed.
 /// </summary>
 internal sealed class GcsWriteStream : Stream
 {
     private readonly GoogleFileSystem _fs;
     private readonly string _objectName;
-    private readonly FileStream _stream = CreateTempFileStream();
+    private readonly FileStream _stream;
     private bool _disposed;
 
     /// <inheritdoc />
@@ -53,6 +53,16 @@ public GcsWriteStream(GoogleFileSystem fs, string objectName)
     {
         _fs = fs;
         _objectName = objectName;
+        _stream = new FileStream(
+            Path.Combine(
+                Path.GetTempPath(),
+                Path.GetRandomFileName()),
+            FileMode.CreateNew,
+            FileAccess.ReadWrite,
+            FileShare.None,
+            bufferSize: 4096,
+            FileOptions.DeleteOnClose
+                | FileOptions.Asynchronous);
     }
 
     /// <inheritdoc />
@@ -84,7 +94,6 @@ public override void Write(ReadOnlySpan<byte> buffer)
         {
             _disposed = true;
             _stream.Close();
-
             throw;
         }
     }
@@ -104,7 +113,6 @@ public override async ValueTask WriteAsync(ReadOnlyMemory<byte> buffer, Cancella
         {
             _disposed = true;
             _stream.Close();
-
             throw;
         }
     }
@@ -176,15 +184,6 @@ await _fs.StorageClient
         }
     }
 
-    private static FileStream CreateTempFileStream()
-    {
-        const int BufferSize = 4096;
-        const FileOptions Options = FileOptions.DeleteOnClose | FileOptions.Asynchronous;
-
-        var path = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
-        return new FileStream(path, FileMode.Create, FileAccess.ReadWrite, FileShare.Read, BufferSize, Options);
-    }
-
     [DoesNotReturn]
     private static void Error_NotSupported() =>
         throw new NotSupportedException();

tests/Ramstack.FileSystem.Amazon.Tests/WritableAmazonFileSystemTests.cs

@@ -14,7 +14,7 @@ namespace Ramstack.FileSystem.Amazon;
 [Category("Cloud:Amazon")]
 public class WritableAmazonFileSystemTests : VirtualFileSystemSpecificationTests
 {
-    private readonly HashSet<string> _list = [];
+    private readonly HashSet<string> _buckets = [];
     private readonly TempFileStorage _storage = new TempFileStorage();
 
     [OneTimeSetUp]
@@ -35,17 +35,17 @@ public async Task Cleanup()
     {
         _storage.Dispose();
 
-        foreach (var name in _list.ToArray())
+        foreach (var name in _buckets.ToArray())
         {
             using var fs = CreateFileSystem(name);
 
             try
             {
                 await fs.DeleteDirectoryAsync("/");
             }
-            catch (Exception exception)
+            catch (Exception e)
             {
-                Console.WriteLine(exception);
+                Console.WriteLine(e);
             }
         }
     }
@@ -61,14 +61,15 @@ public async Task File_OpenWrite_InternalBufferWriteError_DoesNotCreateFile()
             Assert.That(underlying, Is.Not.Null);
 
             // Write enough data to trigger automatic part upload (>= 5 MiB).
-            await stream.WriteAsync(new ReadOnlyMemory<byte>(new byte[6 * 1024 * 1024]));
+            await stream.WriteAsync(new byte[6 * 1024 * 1024]);
 
             // Simulates an internal buffer write error.
             await underlying.DisposeAsync();
 
             try
             {
-                await stream.WriteAsync(new ReadOnlyMemory<byte>(new byte[1024]));
+                await stream.WriteAsync(new byte[1024]);
+                Assert.Fail();
             }
             catch
             {
@@ -239,7 +240,6 @@ public async Task File_OpenWrite_FlushWithMultipartUpload()
             for (var i = 0; i < Count; i++)
                 await stream.WriteAsync(chunk);
         }
-
         {
             var file = fs.GetFile(FileName);
 
@@ -314,7 +314,7 @@ protected override DirectoryInfo GetDirectoryInfo() =>
 
     private AmazonS3FileSystem CreateFileSystem(string storageName)
     {
-        _list.Add(storageName);
+        _buckets.Add(storageName);
 
         return new AmazonS3FileSystem(
             new BasicAWSCredentials("rustfsadmin", "rustfsadmin"),

tests/Ramstack.FileSystem.Google.Tests/WritableGoogleFileSystemTests.cs

@@ -43,9 +43,9 @@ public async Task Cleanup()
             {
                 await fs.DeleteDirectoryAsync("/");
             }
-            catch (Exception exception)
+            catch (Exception e)
             {
-                Console.WriteLine(exception);
+                Console.WriteLine(e);
             }
         }
     }
@@ -60,22 +60,19 @@ public async Task File_OpenWrite_InternalBufferWriteError_DoesNotCreateFile()
             var underlying = (FileStream)stream.GetType().GetField("_stream", BindingFlags.NonPublic | BindingFlags.Instance)!.GetValue(stream)!;
             Assert.That(underlying, Is.Not.Null);
 
-            await stream.WriteAsync(new ReadOnlyMemory<byte>(new byte[1024]));
-
-            // Forces to upload buffer.
-            await stream.FlushAsync();
+            await stream.WriteAsync(new byte[1024]);
 
             // Simulates an internal buffer write error.
             await underlying.DisposeAsync();
 
             try
             {
-                await stream.WriteAsync(new ReadOnlyMemory<byte>(new byte[1024]));
+                await stream.WriteAsync(new byte[1024]);
+                Assert.Fail();
             }
-            catch (Exception exception)
+            catch
             {
-                Console.WriteLine("Exception expected!");
-                Console.WriteLine(exception);
+                // Ignore
             }
         }
 
@@ -160,6 +157,9 @@ public async Task File_CopyTo_File_DifferentFileSystems()
         Assert.That(
             await reader.ReadToEndAsync(),
             Is.EqualTo(content));
+
+        await source.DeleteAsync();
+        await destination.DeleteAsync();
     }
 
     [Test]
@@ -189,6 +189,9 @@ public async Task File_CopyTo_File_DifferentStorages()
         Assert.That(
             await reader.ReadToEndAsync(),
             Is.EqualTo(content));
+
+        await source.DeleteAsync();
+        await destination.DeleteAsync();
     }
 
     protected override GoogleFileSystem GetFileSystem() =>