public void ContentLength_ReadValue_TryComputeLengthInvoked()
{
_headers = new HttpContentHeaders(new ComputeLengthHttpContent(() => 15));
// The delegate is invoked to return the length.
Assert.Equal(15, _headers.ContentLength);
Assert.Equal((long)15, _headers.GetSingleParsedValue(KnownHeaders.ContentLength.Descriptor));
// After getting the calculated content length, set it to null.
_headers.ContentLength = null;
Assert.Null(_headers.ContentLength);
Assert.False(_headers.Contains(KnownHeaders.ContentLength.Name));
_headers.ContentLength = 27;
Assert.Equal((long)27, _headers.ContentLength);
Assert.Equal((long)27, _headers.GetSingleParsedValue(KnownHeaders.ContentLength.Descriptor));
}
public void ContentLength_SetCustomValue_TryComputeLengthNotInvoked()
{
_headers = new HttpContentHeaders(new ComputeLengthHttpContent(() => { throw new ShouldNotBeInvokedException(); }));
_headers.ContentLength = 27;
Assert.Equal((long)27, _headers.ContentLength);
Assert.Equal((long)27, _headers.GetSingleParsedValue(KnownHeaders.ContentLength.Descriptor));
// After explicitly setting the content length, set it to null.
_headers.ContentLength = null;
Assert.Null(_headers.ContentLength);
Assert.False(_headers.Contains(KnownHeaders.ContentLength.Name));
// Make sure the header gets serialized correctly
_headers.ContentLength = 12345;
Assert.Equal("12345", _headers.GetValues("Content-Length").First());
}
