public async Task CloudAppendBlobUploadDownloadFileWithFailures()
{
CloudAppendBlob blob = this.testContainer.GetAppendBlobReference("blob1");
CloudAppendBlob nullBlob = this.testContainer.GetAppendBlobReference("null");
await this.DoUploadDownloadFileAsync(blob, 0);
await this.DoUploadDownloadFileAsync(blob, 4096);
await this.DoUploadDownloadFileAsync(blob, 4097);
await TestHelper.ExpectedExceptionAsync <IOException>(
async() => await blob.UploadFromFileAsync("non_existentCloudAppendBlobUploadDownloadFileWithFailures.file"),
"UploadFromFileAsync requires an existing file");
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudAppendBlobUploadDownloadFileWithFailures.file", FileMode.Create),
"DownloadToFileAsync should not leave an empty file behind after failing.");
Assert.IsFalse(System.IO.File.Exists("garbageCloudAppendBlobUploadDownloadFileWithFailures.file"));
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudAppendBlobUploadDownloadFileWithFailures.file", FileMode.CreateNew),
"DownloadToFileAsync should not leave an empty file behind after failing.");
Assert.IsFalse(System.IO.File.Exists("garbageCloudAppendBlobUploadDownloadFileWithFailures.file"));
byte[] buffer = GetRandomBuffer(100);
using (FileStream file = new FileStream("garbageCloudAppendBlobUploadDownloadFileWithFailures.file", FileMode.Create, FileAccess.Write))
{
await file.WriteAsync(buffer, 0, buffer.Length);
}
await TestHelper.ExpectedExceptionAsync <IOException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudAppendBlobUploadDownloadFileWithFailures.file", FileMode.CreateNew),
"DownloadToFileAsync should leave an empty file behind after failing, depending on the mode.");
Assert.IsTrue(System.IO.File.Exists("garbageCloudAppendBlobUploadDownloadFileWithFailures.file"));
System.IO.File.Delete("garbageCloudAppendBlobUploadDownloadFileWithFailures.file");
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudAppendBlobUploadDownloadFileWithFailures.file", FileMode.Append),
"DownloadToFileAsync should leave an empty file behind after failing depending on file mode.");
Assert.IsTrue(System.IO.File.Exists("garbageCloudAppendBlobUploadDownloadFileWithFailures.file"));
System.IO.File.Delete("garbageCloudAppendBlobUploadDownloadFileWithFailures.file");
}