public void NullSequenceNotEqualToEmptySequence()
{
var comparer = EqualityCompare <int[]> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
Assert.IsFalse(comparer.Equals(null, new int[0]));
Assert.IsFalse(objectComparer.Equals(null, new int[0]));
}
public void NullIsNotEqualToValue()
{
var comparer = EqualityCompare <object> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
var obj = new object();
Assert.IsFalse(comparer.Equals(obj, null));
Assert.IsFalse(objectComparer.Equals(obj, null));
}
public void EqualValueTypesAreNotEqual()
{
var comparer = EqualityCompare <int> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
var value = 13;
Assert.IsFalse(comparer.Equals(value, value));
Assert.IsFalse(objectComparer.Equals(value, value));
}
public void NullSequenceIsEqualToNullSequence()
{
var comparer = EqualityCompare <int[]> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
Assert.AreEqual(comparer.GetHashCode(null), comparer.GetHashCode(null));
Assert.AreEqual(objectComparer.GetHashCode(null), objectComparer.GetHashCode(null));
Assert.IsTrue(comparer.Equals(null, null));
Assert.IsTrue(objectComparer.Equals(null, null));
}
public void UsesReferenceEqualityComparerForSequences()
{
var threeA = new[] { 3 };
var threeB = new[] { 3 };
var comparer = EqualityCompare <int[]> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
Assert.IsFalse(comparer.Equals(threeA, threeB));
Assert.IsFalse(objectComparer.Equals(threeA, threeB));
}
public void IdenticalObjectsAreEqual()
{
var comparer = EqualityCompare <object> .Reference();
var objectComparer = comparer as System.Collections.IEqualityComparer;
var obj = new object();
Assert.AreEqual(comparer.GetHashCode(obj), objectComparer.GetHashCode(obj));
Assert.IsTrue(comparer.Equals(obj, obj));
Assert.IsTrue(objectComparer.Equals(obj, obj));
}