public void ContentLength_AddInvalidValueUsingUnusualCasing_ParserRetrievedUsingCaseInsensitiveComparison()
{
_headers = new HttpContentHeaders(new ComputeLengthHttpContent(() => 15));
// Use uppercase header name to make sure the parser gets retrieved using case-insensitive comparison.
Assert.Throws<FormatException>(() => { _headers.Add("CoNtEnT-LeNgTh", "this is invalid"); });
}