public async Task VerifyChecksumAsync_Data_Is_Truncated_If_Verification_Fails()
{
// Checksum is for "hello world"
const string incorrectChecksum = "Kq5sNclPz7QV2+lfQIuc6R7oRu0=";
const string message = "Hello World 12345!!@@åäö";
var buffer = new UTF8Encoding(false).GetBytes(message);
// Test complete upload
var fileId = await _fixture.Store.CreateFileAsync(buffer.Length, null, CancellationToken.None);
using (var stream = new MemoryStream(buffer))
{
await _fixture.Store.AppendDataAsync(fileId, stream, CancellationToken.None);
}
var checksumOk = await _fixture.Store
.VerifyChecksumAsync(fileId, "sha1", Convert.FromBase64String(incorrectChecksum), CancellationToken.None);
// File should not have been saved.
checksumOk.ShouldBeFalse();
var filePath = Path.Combine(_fixture.Path, fileId);
new FileInfo(filePath).Length.ShouldBe(0);
// Test chunked upload
fileId = await _fixture.Store.CreateFileAsync(buffer.Length, null, CancellationToken.None);
using (var stream = new MemoryStream(buffer.Take(10).ToArray()))
{
// Write first 10 bytes
await _fixture.Store.AppendDataAsync(fileId, stream, CancellationToken.None);
}
using (var stream = new MemoryStream(buffer.Skip(10).ToArray()))
{
// Skip first 10 bytes and write the rest
await _fixture.Store.AppendDataAsync(fileId, stream, CancellationToken.None);
}
checksumOk = await _fixture.Store.VerifyChecksumAsync(fileId, "sha1", Convert.FromBase64String(incorrectChecksum),
CancellationToken.None);
// Only first chunk should have been saved.
checksumOk.ShouldBeFalse();
filePath = Path.Combine(_fixture.Path, fileId);
new FileInfo(filePath).Length.ShouldBe(10);
}