public void SignCanonicalRequestByHeaders()
{
var config = BuildBaseSigningConfig();
config.SignedBodyHeader = AwsSignedBodyHeaderType.X_AMZ_CONTENT_SHA256;
config.SignatureType = AwsSignatureType.CANONICAL_REQUEST_VIA_HEADERS;
var canonicalRequest = String.Join("\n",
"POST",
"/",
"",
"content-length:13",
"content-type:application/x-www-form-urlencoded",
"host:example.amazonaws.com",
"x-amz-content-sha256:9095672bbd1f56dfc5b65f3e153adc8731a4a654192329106275f4c7b24d0b6e",
"x-amz-date:20150830T123600Z",
"",
"content-length;content-type;host;x-amz-content-sha256;x-amz-date",
"9095672bbd1f56dfc5b65f3e153adc8731a4a654192329106275f4c7b24d0b6e");
CrtResult <String> result = AwsSigner.SignCanonicalRequest(canonicalRequest, config);
String signatureValue = result.Get();
Assert.Equal("d3875051da38690788ef43de4db0d8f280229d82040bfac253562e56c3f20e0b", signatureValue);
}