public async Task CloudPageBlobUploadDownloadFileWithFailures()
{
CloudPageBlob blob = this.testContainer.GetPageBlobReference("blob1");
CloudPageBlob nullBlob = this.testContainer.GetPageBlobReference("null");
await this.DoUploadDownloadFileAsync(blob, 0);
await this.DoUploadDownloadFileAsync(blob, 4096);
await TestHelper.ExpectedExceptionAsync <ArgumentException>(
async() => await this.DoUploadDownloadFileAsync(blob, 4097),
"Page blobs must be 512-byte aligned");
await TestHelper.ExpectedExceptionAsync <IOException>(
async() => await blob.UploadFromFileAsync("non_existentCloudPageBlobUploadDownloadFileWithFailures.file"),
"UploadFromFileAsync requires an existing file");
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudPageBlobUploadDownloadFileWithFailures.file", FileMode.Create),
"DownloadToFileAsync should not leave an empty file behind after failing.");
Assert.IsFalse(System.IO.File.Exists("garbageCloudPageBlobUploadDownloadFileWithFailures.file"));
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudPageBlobUploadDownloadFileWithFailures.file", FileMode.CreateNew),
"DownloadToFileAsync should not leave an empty file behind after failing.");
Assert.IsFalse(System.IO.File.Exists("garbageCloudPageBlobUploadDownloadFileWithFailures.file"));
byte[] buffer = GetRandomBuffer(100);
using (FileStream file = new FileStream("garbageCloudPageBlobUploadDownloadFileWithFailures.file", FileMode.Create, FileAccess.Write))
{
await file.WriteAsync(buffer, 0, buffer.Length);
}
await TestHelper.ExpectedExceptionAsync <IOException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudPageBlobUploadDownloadFileWithFailures.file", FileMode.CreateNew),
"DownloadToFileAsync should leave an empty file behind after failing, depending on the mode.");
Assert.IsTrue(System.IO.File.Exists("garbageCloudPageBlobUploadDownloadFileWithFailures.file"));
System.IO.File.Delete("garbageCloudPageBlobUploadDownloadFileWithFailures.file");
await TestHelper.ExpectedExceptionAsync <StorageException>(
async() => await nullBlob.DownloadToFileAsync("garbageCloudPageBlobUploadDownloadFileWithFailures.file", FileMode.OpenOrCreate),
"DownloadToFileAsync should leave an empty file behind after failing, depending on file mode.");
Assert.IsTrue(System.IO.File.Exists("garbageCloudPageBlobUploadDownloadFileWithFailures.file"));
System.IO.File.Delete("garbageCloudPageBlobUploadDownloadFileWithFailures.file");
}