public ActionResult Image(int?code)
{
if (code == null)
{
code = IdenticonUtil.Code(HttpContext.Request.UserHostAddress);
}
string etag = IdenticonUtil.ETag(code.Value, Size);
if (HttpContext != null && HttpContext.Request != null && HttpContext.Request.Headers != null && HttpContext.Request.Headers["If-None-Match"] == etag)
{
// browser already has the image cached
return(new NotModifiedResult());
}
return(new IdenticonResult(code.Value, Size, etag));
}
public void Image_WithRequestMatchingEtag_ReturnsNotModifiedResult()
{
// arrange
string etag = IdenticonUtil.ETag(-1234, 40);
var controller = new IdenticonController();
var controllerContext = new Mock <ControllerContext>();
controller.ControllerContext = controllerContext.Object;
controllerContext.Setup(c => c.HttpContext.Request.Headers).Returns(new NameValueCollection {
{ "If-None-Match", etag }
});
// act
var result = controller.Image(-1234) as NotModifiedResult;
// assert
Assert.IsNotNull(result);
}
