public void IsValidForRequestThrowsIfControllerContextIsNull()
{
// Arrange
AjaxOnlyAttribute attr = new AjaxOnlyAttribute();
// Act & assert
Assert.ThrowsArgumentNull(
delegate { attr.IsValidForRequest(null, null); }, "controllerContext");
}
public void IsValidForRequestReturnsTrueIfHeaderIsPresent()
{
// Arrange
AjaxOnlyAttribute attr = new AjaxOnlyAttribute();
ControllerContext controllerContext = GetControllerContext(containsHeader: true);
// Act
bool isValid = attr.IsValidForRequest(controllerContext, null);
// Assert
Assert.True(isValid);
}