public void TestChunkedRequest()
{
var signer = new CrtAWS4aSigner();
var request = BuildMockChunkedRequest();
var clientConfig = BuildSigningClientConfig(SigningTestService);
var headerResult = signer.SignRequest(request, clientConfig, null, SigningTestCredentials);
var config = BuildDefaultSigningConfig(SigningTestService);
config.SignatureType = AwsSignatureType.CANONICAL_REQUEST_VIA_HEADERS;
config.SignedBodyValue = AWS4Signer.V4aStreamingBodySha256;
Assert.True(AwsSigner.VerifyV4aCanonicalSigning(GetExpectedCanonicalRequestForChunkedSigningTest(),
config, headerResult.Signature, SigningTestEccPubX, SigningTestEccPubY));
var chunk1Result = signer.SignChunk(CreateChunkStream(Chunk1Size), headerResult.Signature, headerResult);
Assert.True(AwsSigner.VerifyV4aSignature(BuildV4aChunkedStringToSignHelper(headerResult, headerResult.Signature, Chunk1Size),
Encoding.ASCII.GetBytes(chunk1Result), SigningTestEccPubX, SigningTestEccPubY));
var chunk2Result = signer.SignChunk(CreateChunkStream(Chunk2Size), chunk1Result, headerResult);
Assert.True(AwsSigner.VerifyV4aSignature(BuildV4aChunkedStringToSignHelper(headerResult, chunk1Result, Chunk2Size),
Encoding.ASCII.GetBytes(chunk2Result), SigningTestEccPubX, SigningTestEccPubY));
var chunk3Result = signer.SignChunk(null, chunk2Result, headerResult);
Assert.True(AwsSigner.VerifyV4aSignature(BuildV4aChunkedStringToSignHelper(headerResult, chunk2Result, 0),
Encoding.ASCII.GetBytes(chunk3Result), SigningTestEccPubX, SigningTestEccPubY));
}