void MaxT()
{
IEnumerable <DummyIComparableT> nullEnumerable = new DummyIComparableT[] { null, -1, -1, null, 0, 1, 1 };
DummyIComparableT result = null;
Test.IfNot.Action.ThrowsException(() => result = nullEnumerable.MaximumT(), out Exception ex);
Test.If.Value.IsEqual(result, 1);
}
void MaxT_ThrowsException()
{
IEnumerable <DummyIComparableT> empty = Enumerable.Empty <DummyIComparableT>();
IEnumerable <DummyIComparableT> nulls = new DummyIComparableT[] { null, null };
Test.If.Action.ThrowsException(() => IEnumerableTExtensions.MaximumT <DummyIComparableT>(null), out ArgumentNullException ex);
Test.If.Value.IsEqual(ex.ParamName, "_this");
Test.If.Action.ThrowsException(() => empty.MaximumT(), out ArgumentException argEx);
Test.If.Value.IsEqual(argEx.ParamName, "_this");
Test.If.String.StartsWith(argEx.Message, "The enumeration is empty.");
Test.If.Action.ThrowsException(() => nulls.MaximumT(), out argEx);
Test.If.Value.IsEqual(argEx.ParamName, "_this");
Test.If.String.StartsWith(argEx.Message, "The enumeration only contains null values.");
}