public void Test_EntityEquivalenceComparing()
{
var document = RegularStonReader.Default.ParseDocument("{ a: A=0, b: B=0, c: C=(0,0), d: D=(0,0), e: E=int 0, ra: RA=@A, rb: RB=@B, rc: RC=@C, rd: RD=@D, re: RE=@E }");
var entityComparer = new StonSemanticEntityEquivalenceComparer(document);
var keyComparer = new StonBindingKeyEquivalenceComparer(entityComparer);
AggregateTester.New()
.Add("A == RA", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "A", "RA")))
.Add("B == RB", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "B", "RB")))
.Add("C == RC", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "C", "RC")))
.Add("D == RD", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "D", "RD")))
.Add("E == RE", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "E", "RE")))
.Add("A == B", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "A", "B")))
.Add("A == B 2", () => Assert.IsTrue(AreEqual <IStonSimpleEntity>(document, entityComparer, "A", "B")))
.Add("RA == RB", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "RA", "RB")))
.Add("RA == RB 2", () => Assert.IsTrue(AreEqual <IStonReferenceEntity>(document, entityComparer, "RA", "RB")))
.Add("A != E", () => Assert.IsFalse(AreEqual <IStonEntity>(document, entityComparer, "A", "E")))
.Add("RA != RE", () => Assert.IsFalse(AreEqual <IStonEntity>(document, entityComparer, "RA", "RE")))
.Add("C != D", () => Assert.IsFalse(AreEqual <IStonEntity>(document, entityComparer, "C", "D")))
.Add("C != D 2", () => Assert.IsFalse(AreEqual <IStonComplexEntity>(document, entityComparer, "C", "D")))
.Add("RC != RD", () => Assert.IsFalse(AreEqual <IStonEntity>(document, entityComparer, "RC", "RD")))
.Add("RC != RD 2", () => Assert.IsFalse(AreEqual <IStonReferenceEntity>(document, entityComparer, "RC", "RD")))
.Add("C == C", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "C", "C")))
.Add("C == C 2", () => Assert.IsTrue(AreEqual <IStonComplexEntity>(document, entityComparer, "C", "C")))
.Add("RC == RC", () => Assert.IsTrue(AreEqual <IStonEntity>(document, entityComparer, "RC", "RC")))
.Add("RC == RC 2", () => Assert.IsTrue(AreEqual <IStonReferenceEntity>(document, entityComparer, "RC", "RC")))
// null-valued entities are always equal
.Add("null value == null value", () => Assert.IsTrue(entityComparer.Equals(
new StonSimpleEntity(new StonSimpleValue(StonDataType.Null, null)),
new StonSimpleEntity(new StonSimpleValue(StonDataType.Null, ""))
)))
// non-null references, one of which, being from outside, points to a null entity
.Add("valid reference != invalid reference", () => Assert.IsFalse(entityComparer.Equals(document.GetGlobalEntity("RA"), new AReferenceEntity(null))))
.Add("valid reference != invalid reference 2", () => Assert.IsFalse(entityComparer.Equals(document.GetGlobalEntity("RA") as IStonReferenceEntity, new AReferenceEntity(null))))
.Run();
// some additional assertions related to hash codes
var set = new HashSet <IStonEntity>(entityComparer);
Assert.IsTrue(set.Add(document.GetGlobalEntity("RA")));
Assert.IsFalse(set.Add(document.GetGlobalEntity("A")));
Assert.IsTrue(set.Add(document.GetGlobalEntity("E")));
Assert.IsFalse(set.Add(document.GetGlobalEntity("RE")));
}
public void Test_NullInvalidEquivalenceComparing()
{
var document = RegularStonReader.Default.ParseDocument("{ a: A=0, b: B=0, c: C=(0,0), d: D=(0,0), e: E=int 0, ra: RA=@A, rb: RB=@B, rc: RC=@C, rd: RD=@D, re: RE=@E }");
var typeComparer = StonTypeEquivalenceComparer.Instance;
var entityComparer = new StonSemanticEntityEquivalenceComparer(document);
var keyComparer = new StonBindingKeyEquivalenceComparer(entityComparer);
AggregateTester.New()
// comparing non-existing types
.Add("null type == null type 1", () => Assert.IsTrue(typeComparer.Equals(null as IStonType, null as IStonType)))
.Add("null type == null type 2", () => Assert.IsTrue(typeComparer.Equals(null as IStonNamedType, null as IStonNamedType)))
.Add("null type == null type 3", () => Assert.IsTrue(typeComparer.Equals(null as IStonCollectionType, null as IStonCollectionType)))
.Add("null type == null type 4", () => Assert.IsTrue(typeComparer.Equals(null as IStonUnionType, null as IStonUnionType)))
.Add("null type != !null type 1", () => Assert.IsFalse(typeComparer.Equals(null as IStonType, new InvalidStonType())))
.Add("null type != !null type 2", () => Assert.IsFalse(typeComparer.Equals(null as IStonNamedType, new ANamedType("", false, null))))
.Add("null type != !null type 3", () => Assert.IsFalse(typeComparer.Equals(null as IStonCollectionType, new ACollectionType(null))))
.Add("null type != !null type 4", () => Assert.IsFalse(typeComparer.Equals(null as IStonUnionType, new AUnionType(null))))
.Add("invalid type != invalid type", () => Assert.IsFalse(typeComparer.Equals(new InvalidStonType(), new InvalidStonType())))
/// hashing non-existing and invalid hashes
.Add("null type hash 1", () => Assert.AreEqual(0, typeComparer.GetHashCode(null as IStonType)))
.Add("null type hash 2", () => Assert.AreEqual(0, typeComparer.GetHashCode(null as IStonNamedType)))
.Add("null type hash 3", () => Assert.AreEqual(0, typeComparer.GetHashCode(null as IStonCollectionType)))
.Add("null type hash 4", () => Assert.AreEqual(0, typeComparer.GetHashCode(null as IStonUnionType)))
.Add("invalid type hash", () => Assert.AreEqual(0, typeComparer.GetHashCode(new InvalidStonType())))
// comparing non-existing and invalid entities
.Add("null entity == null entity 1", () => Assert.IsTrue(entityComparer.Equals(null as IStonEntity, null as IStonEntity)))
.Add("null entity == null entity 2", () => Assert.IsTrue(entityComparer.Equals(null as IStonValuedEntity, null as IStonValuedEntity)))
.Add("null entity == null entity 3", () => Assert.IsTrue(entityComparer.Equals(null as IStonSimpleEntity, null as IStonSimpleEntity)))
.Add("null entity == null entity 4", () => Assert.IsTrue(entityComparer.Equals(null as IStonComplexEntity, null as IStonComplexEntity)))
.Add("null entity == null entity 5", () => Assert.IsTrue(entityComparer.Equals(null as IStonReferenceEntity, null as IStonReferenceEntity)))
.Add("null entity != !null entity 1", () => Assert.IsFalse(entityComparer.Equals(null, new InvalidStonEntity())))
.Add("null entity != !null entity 2", () => Assert.IsFalse(entityComparer.Equals(null, new InvalidStonValuedEntity())))
.Add("null entity != !null entity 3", () => Assert.IsFalse(entityComparer.Equals(null, new ASimpleEntity(null))))
.Add("null entity != !null entity 4", () => Assert.IsFalse(entityComparer.Equals(null, new AComplexEntity())))
.Add("null entity != !null entity 5", () => Assert.IsFalse(entityComparer.Equals(null, new AReferenceEntity(null))))
// hashing non-existing and invalid entities
.Add("null entity hash 1", () => Assert.AreEqual(0, entityComparer.GetHashCode(null as IStonEntity)))
.Add("null entity hash 2", () => Assert.AreEqual(0, entityComparer.GetHashCode(null as IStonValuedEntity)))
.Add("null entity hash 3", () => Assert.AreEqual(0, entityComparer.GetHashCode(null as IStonSimpleEntity)))
.Add("null entity hash 4", () => Assert.AreEqual(0, entityComparer.GetHashCode(null as IStonComplexEntity)))
.Add("null entity hash 5", () => Assert.AreEqual(0, entityComparer.GetHashCode(null as IStonReferenceEntity)))
.Add("invalid entity hash", () => Assert.AreEqual(0, entityComparer.GetHashCode(new InvalidStonEntity())))
.Add("invalid valued entity hash", () => Assert.AreEqual(0, entityComparer.GetHashCode(new InvalidStonValuedEntity())))
// comparing non-existing binding keys
.Add("null key = null key", () => Assert.IsTrue(keyComparer.Equals(null as IStonBindingKey, null as IStonBindingKey)))
.Add("null name = null name", () => Assert.IsTrue(keyComparer.Equals(null as IStonBindingName, null as IStonBindingName)))
.Add("null index = null index", () => Assert.IsTrue(keyComparer.Equals(null as IStonBindingIndex, null as IStonBindingIndex)))
.Add("null key != !null key", () => Assert.IsFalse(keyComparer.Equals(null as IStonBindingKey, new InvalidStonBindingKey())))
.Add("null name != !null name", () => Assert.IsFalse(keyComparer.Equals(null as IStonBindingName, new StonBindingName("name", false))))
.Add("null index != !null index", () => Assert.IsFalse(keyComparer.Equals(null as IStonBindingIndex, new ABindingIndex(null))))
// hashing non-existing and invalid binding keys
.Add("null key hash", () => Assert.AreEqual(0, keyComparer.GetHashCode(null as IStonBindingKey)))
.Add("null name hash", () => Assert.AreEqual(0, keyComparer.GetHashCode(null as IStonBindingName)))
.Add("null index hash", () => Assert.AreEqual(0, keyComparer.GetHashCode(null as IStonBindingIndex)))
.Add("invalid key hash", () => Assert.AreEqual(0, keyComparer.GetHashCode(new InvalidStonBindingKey())))
.Run();
}