/// <summary>
/// Adds annotation to the payload element.
/// </summary>
/// <typeparam name="T">The type of the payload element to work with.</typeparam>
/// <param name="payloadElement">The payload element to add the annotation to.</param>
/// <param name="annotation">The annotation to add.</param>
/// <returns>The <paramref name="payloadElement"/> after the annotation was added.</returns>
public static T AddAnnotation <T>(this T payloadElement, ODataPayloadElementAnnotation annotation) where T : ODataPayloadElement
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
payloadElement.Annotations.Add(annotation);
return(payloadElement);
}
/// <summary>
/// Remove all existing annotations of type <typeparamref name="T"/> and set <paramref name="annotation"/>.
/// </summary>
/// <typeparam name="T">The type of the annotation to set.</typeparam>
/// <param name="payloadElement">The payload element to set the annotation on.</param>
/// <param name="annotation">The annotation to set.</param>
/// <returns>The <paramref name="payloadElement"/> with the <paramref name="annotation"/> set.</returns>
public static T SetAnnotation <T>(this T payloadElement, ODataPayloadElementAnnotation annotation) where T : ODataPayloadElement
{
ExceptionUtilities.CheckArgumentNotNull(annotation, "annotation");
payloadElement.RemoveAnnotations(annotation.GetType());
payloadElement.AddAnnotation(annotation);
return(payloadElement);
}
/// <summary>
/// Asserts that two sets of annotaitons are the same (incl. the same order)
/// </summary>
/// <param name="expected">The expected set of annotations</param>
/// <param name="observed">The actual set of annotations</param>
private void Compare(IList <ODataPayloadElementAnnotation> expectedAnnotations, IList <ODataPayloadElementAnnotation> observedAnnotations)
{
for (int i = 0; i < expectedAnnotations.Count; i++)
{
ODataPayloadElementAnnotation expectedAnnotation = expectedAnnotations[i];
ODataPayloadElementAnnotation matchingAnnotation = null;
string errorMessage = null;
matchingAnnotation = observedAnnotations.Where(ann => CompareAnnotation(expectedAnnotation, ann, out errorMessage)).SingleOrDefault();
if (matchingAnnotation == null)
{
this.Assert.Fail("For annotation " + expectedAnnotation.StringRepresentation + " no matching observed annotation was found." +
"Compare with expected annotations failed in: " + errorMessage);
}
else
{
observedAnnotations.Remove(matchingAnnotation);
}
}
}
private bool CompareAnnotation(ODataPayloadElementAnnotation expectedAnnotation, ODataPayloadElementAnnotation observedAnnotation, out string errorMessage)
{
try
{
errorMessage = null;
this.Assert.AreEqual(expectedAnnotation.GetType(), observedAnnotation.GetType(), "Annotation types should be same");
if (expectedAnnotation is XmlTreeAnnotation)
{
XmlTreeAnnotation e = expectedAnnotation as XmlTreeAnnotation;
XmlTreeAnnotation o = observedAnnotation as XmlTreeAnnotation;
this.Assert.IsNotNull(o, "Observed annotation cannot be null");
this.Assert.AreEqual(e.LocalName, o.LocalName, "Local names should match");
this.Assert.AreEqual(e.NamespaceName, o.NamespaceName, "Namespace names should be equal");
this.Assert.AreEqual(e.PropertyValue, o.PropertyValue, "Property values must be equal");
this.Assert.AreEqual(e.IsAttribute, o.IsAttribute, "IsAttribute values should be equal");
this.Assert.AreEqual(e.Children.Count, o.Children.Count, "Children count must be equal");
Compare(e.Children.Cast <ODataPayloadElementAnnotation>().ToList(), o.Children.Cast <ODataPayloadElementAnnotation>().ToList());
}
else if (expectedAnnotation is SelfLinkAnnotation)
{
SelfLinkAnnotation e = expectedAnnotation as SelfLinkAnnotation;
SelfLinkAnnotation o = observedAnnotation as SelfLinkAnnotation;
this.Assert.IsNotNull(o, "Observed annotation cannot be null");
this.Assert.AreEqual(e.Value, o.Value, "Values should match");
}
else if (expectedAnnotation is ContentTypeAnnotation)
{
ContentTypeAnnotation e = expectedAnnotation as ContentTypeAnnotation;
ContentTypeAnnotation o = observedAnnotation as ContentTypeAnnotation;
this.Assert.IsNotNull(o, "Observed annotation cannot be null");
this.Assert.AreEqual(e.Value, o.Value, "Values should match");
}
return(true);
}
catch (DataComparisonException e)
{
errorMessage = "Message: " + e.Message + " Exception type:" + e.GetType() + " Stack:" + e.StackTrace;
return(false);
}
}