public void SquareRoot_ValidValues_ReturnsExpected()
{
// arrange
double a = 100;
MathOperations m = new MathOperations();
double expected = 10;
double error = 0.1;
// act
double actual = m.SquareRoot(a, error);
// assert
Assert.IsTrue(Math.Abs(actual * actual - expected * expected) < error);
}
public void SquareRoot_RandomSamples_ReturnsValue()
{
Random r = new Random(1234);
for (int i = 0; i < 100000; i++)
{
// arrange
double a = r.NextDouble() * (i % 10);
MathOperations m = new MathOperations();
double expected = Math.Sqrt(a);
double error = 0.001;
// act
double actual = m.SquareRoot(a, error);
// assert
Assert.IsTrue(Math.Abs(actual * actual - expected * expected) < error);
}
}