public void PriceStaysTheSameAllDayTest()
{
var actual = Greedy.AppleStocks(new int[] { 1, 1, 1, 1 });
var expected = 0;
Assert.Equal(expected, actual);
}
public void PriceGoesDownAllDayTest()
{
var actual = Greedy.AppleStocks(new int[] { 9, 7, 4, 1 });
var expected = -2;
Assert.Equal(expected, actual);
}
public void PriceGoesUpAllDayTest()
{
var actual = Greedy.AppleStocks(new int[] { 1, 6, 7, 9 });
var expected = 8;
Assert.Equal(expected, actual);
}
public void PriceGoesDownThenUpTest()
{
var actual = Greedy.AppleStocks(new int[] { 7, 2, 8, 9 });
var expected = 7;
Assert.Equal(expected, actual);
}
public void PriceGoesUpThenDownTest()
{
var actual = Greedy.AppleStocks(new int[] { 1, 5, 3, 2 });
var expected = 4;
Assert.Equal(expected, actual);
}
public void ExceptionWithEmptyPricesTest()
{
Assert.Throws <ArgumentException>(() => Greedy.AppleStocks(new int[] { }));
}