public void TestZero()
{
INumberToWord system = new InternationalNumberSystem();
NumberSystem numberSystem = new NumberSystem(system);
string expected = "Zero";
string actual = numberSystem.Convert(0);
Assert.AreEqual(expected, actual, false);
}
public void TestThousand1()
{
INumberToWord system = new InternationalNumberSystem();
NumberSystem numberSystem = new NumberSystem(system);
string expected = "One Thousand";
string actual = numberSystem.Convert(1000);
Assert.AreEqual(expected, actual, false);
}
public void TestBillion()
{
INumberToWord system = new InternationalNumberSystem();
NumberSystem numberSystem = new NumberSystem(system);
string expected = "One Hundred Two Billion Five Hundred Twenty Three Million Four Hundred Fifty Six Thousand Seven Hundred Eighty Nine";
string actual = numberSystem.Convert(102523456789);
Assert.AreEqual(expected, actual, false);
}
public void TestNegative()
{
INumberToWord system = new InternationalNumberSystem();
NumberSystem numberSystem = new NumberSystem(system);
string expected = "Negative Ninety Nine";
string actual = numberSystem.Convert(-99);
Assert.AreEqual(expected, actual, false);
}