public void CannotCreateNestedSnapshotSource()
{
var orgSource = ZipSource.CreateValidationSource();
var cachedSource = new CachedResolver(orgSource);
var src = new SnapshotSource(cachedSource);
// Verify that SnapshotSource ctor rejects SnapshotSource arguments
Assert.ThrowsException <ArgumentException>(() => new SnapshotSource(src));
}
public void TestElementSnapshot()
{
// Request core Element snapshot; verify recursion handling
var orgSource = ZipSource.CreateValidationSource();
var cachedSource = new CachedResolver(orgSource);
// Assumption: source provides Element structure
var sdCached = cachedSource.FindStructureDefinitionForCoreType(FHIRDefinedType.Element);
Assert.IsNotNull(sdCached);
Assert.IsNotNull(sdCached.Differential);
var elemCnt = sdCached.Differential.Element.Count;
Assert.AreEqual(3, elemCnt); // Element | Element.id | Element.extension
// Generate snapshot by calling SnapshotSource
// Important! Specify flag to force re-generation (don't trust existing core snapshots...)
var snapSource = new SnapshotSource(cachedSource, true);
var sd = snapSource.FindStructureDefinitionForCoreType(FHIRDefinedType.Element);
Assert.IsNotNull(sd);
Assert.AreEqual(sdCached, sd); // Expecting same (cached) object reference, with updated Snapshot component
Assert.IsTrue(sd.HasSnapshot);
Assert.IsTrue(sd.Snapshot.IsCreatedBySnapshotGenerator());
var elems = sd.Snapshot.Element;
Assert.AreEqual(elemCnt, elems.Count);
void assert_ele1(ElementDefinition eld)
{
Assert.AreEqual("ele-1", eld.Constraint.FirstOrDefault()?.Key);
Assert.AreEqual("ele-1", eld.Condition.FirstOrDefault());
}
// Assumption: differential introduces constraint "ele-1" on root element (only)
var diffElems = sd.Differential.Element;
assert_ele1(diffElems[0]);
for (int i = 1; i < elemCnt; i++)
{
var elem = diffElems[i];
Assert.IsFalse(elem.Constraint.Any());
Assert.IsFalse(elem.Condition.Any());
}
// Verify explicit inheritance of recursive constraints in snapshot
//
// [0] Element
// [1] Element.id : id < string < Element
// [2] Element.extension : Extension < Element
//
// Verify that the "ele-1" constraint & condition, introduced by diff root element [0],
// is correctly propagated to snapshot child elements [1] and [2]
foreach (var elem in elems)
{
assert_ele1(elem);
}
}
