public void GetHashCode_NullableInt_NonGeneric()
{
IEqualityComparer comparer = new NullableIntComparer();
Assert.AreEqual(0, comparer.GetHashCode(null));
var anyNonZero = new int?[] { 3, 7, 12, 45 }
.Select(x => comparer.GetHashCode(x))
.Any(hc => hc != 0);
Assert.IsTrue(anyNonZero, allHashCodesZero);
ExceptionAssert.Throws <ArgumentException>(() => comparer.GetHashCode("abc"));
}
public void GetHashCode_NullableInt()
{
var comparer = new NullableIntComparer();
Assert.AreEqual(0, comparer.GetHashCode(null));
var anyNonZero = new int?[] { 3, 7, 12, 45 }
.Select(comparer.GetHashCode)
.Any(hc => hc != 0);
Assert.IsTrue(anyNonZero, allHashCodesZero);
}