public void TestAddNumberIncreasesFrequency()
{
var dt = new FtrDataTable();
const int number = 5;
var expectedFrequency = 0;
dt.AddNumber(number);
expectedFrequency++;
Assert.IsTrue(dt.ToString().Contains($"{number}:{expectedFrequency}"));
dt.AddNumber(number);
expectedFrequency++;
Assert.IsTrue(dt.ToString().Contains($"{number}:{expectedFrequency}"));
}
public void TestAddTwoDifferentNumbersAscendingOrder()
{
var dt = new FtrDataTable();
const int number1 = 5;
const int number2 = 10;
var expectedFrequency1 = 0;
var expectedFrequency2 = 0;
dt.AddNumber(number1);
expectedFrequency1++;
dt.AddNumber(number2);
expectedFrequency2++;
Assert.IsTrue(dt.ToString().Contains($"{number1}:{expectedFrequency1}, {number2}:{expectedFrequency2}"));
}
public void TestEmptyOutput()
{
var dt = new FtrDataTable();
Assert.AreEqual(string.Empty, dt.ToString());
}