public void TestSubtractSameNumbers()
{
NonScientific n = new NonScientific();
decimal expected = 0;
decimal actual = n.Subtract(4, 4);
Assert.AreEqual(expected, actual);
}
public void TestSubtractNegativeNumbers()
{
NonScientific n = new NonScientific();
decimal expected = -3;
decimal actual = n.Subtract(-4, -1);
Assert.AreEqual(expected, actual);
}
public void TestAddSmallNumber()
{
NonScientific ncalc = new NonScientific();
decimal expected = 2.000001m;
decimal actual = ncalc.Add(2, 0.000001m);
Assert.AreEqual(expected, actual);
}
public void TestAddLargeNumber()
{
NonScientific ncalc = new NonScientific();
decimal expected = 1000002;
decimal actual = ncalc.Add(2, 1000000m);
Assert.AreEqual(expected, actual);
}
public void TestAddNegativeResult()
{
NonScientific ncalc = new NonScientific();
decimal expected = -1;
decimal actual = ncalc.Add(2, -3);
Assert.AreEqual(expected, actual);
}
public void TestAddZero()
{
NonScientific ncalc = new NonScientific();
decimal expected = 2;
decimal actual = ncalc.Add(2, 0);
Assert.AreEqual(expected, actual);
}
public void TestDivideByNegative()
{
NonScientific ncalc = new NonScientific();
decimal expected = -3m;
decimal actual = ncalc.Divide(6, -2);
Assert.AreEqual(expected, actual);
}
public void TestSubtractNumberAndZero()
{
NonScientific n = new NonScientific();
decimal expected = 4;
decimal actual = n.Subtract(4, 0);
Assert.AreEqual(expected, actual);
}
public void TestDivideByZero()
{
NonScientific ncalc = new NonScientific();
decimal expected = 0;
decimal actual = ncalc.Divide(2, 0);
Assert.AreEqual(expected, actual);
}
public void TestDivideBySmallNumber()
{
NonScientific ncalc = new NonScientific();
decimal expected = 20000000;
decimal actual = ncalc.Divide(2, 0.0000001m);
Assert.AreEqual(expected, actual);
}
public void TestMultiplyZeros()
{
NonScientific n = new NonScientific();
decimal expected = 0;
decimal actual = n.Multiply(0, 0);
Assert.AreEqual(expected, actual);
}
public void TestMultiplyLarge()
{
NonScientific n = new NonScientific();
decimal expected = 4000000;
decimal actual = n.Multiply(2000000, 2);
Assert.AreEqual(expected, actual);
}
public void TestMultiplyNegatives()
{
NonScientific n = new NonScientific();
decimal expected = 6;
decimal actual = n.Multiply(-3, -2);
Assert.AreEqual(expected, actual);
}
public void TestSubtractLargeNumbers()
{
NonScientific n = new NonScientific();
decimal expected = 999000000001;
decimal actual = n.Subtract(1000000000000, 999999999);
Assert.AreEqual(expected, actual);
}
public void TestDivideByLargeNumber()
{
NonScientific ncalc = new NonScientific();
decimal expected = 0.000002m;
decimal actual = ncalc.Divide(2, 1000000m);
Assert.AreEqual(expected, actual);
}
public void TestSubstractNegativeAndPositive()
{
NonScientific n = new NonScientific();
decimal expected = -16;
decimal actual = n.Subtract(-12, 4);
Assert.AreEqual(expected, actual);
}
public void TestSubtractZeroAndNumber()
{
NonScientific n = new NonScientific();
decimal expected = -5;
decimal actual = n.Subtract(0, 5);
Assert.AreEqual(expected, actual);
}
