public void Equals_NullValue_NoException()
{
// arrange
var date = new DateTime(2013, 5, 20);
var open = new decimal(30.16);
var high = new decimal(30.39);
var low = new decimal(30.02);
var close = new decimal(30.17);
var volume = 1478200;
// act
var data1 = new TradeData(date, open, high, low, close, volume);
TradeData data2 = null;
// assert
Assert.IsFalse(data1.Equals(data2));
Assert.IsFalse(data1 == data2);
Assert.AreNotEqual(data1, data2);
}