public void HBadge_TryFormat_ShouldReturnFalseWhenTooSmallDestination() { Span <char> destination = stackalloc char[4]; var badge = new HBadge { new HBadgeSymbolPart(HBadgeSymbol.Bobba, HBadgeColor.Black, HBadgePosition.Center) }; Assert.False(badge.TryFormat(destination, out int charsWritten)); Assert.Equal(0, charsWritten); }