public void SolveLinearEquationTest(int a, int b, int c, double expected)
{
double actual = Task4.SolveLinearEquation(a, b, c);
double delta = 0.0001;
Assert.AreEqual(expected, actual, delta);
}
public void DivideByZeroExceptionTest(int a, int b, int c)
{
Assert.Throws <DivideByZeroException>(() => Task4.SolveLinearEquation(a, b, c));
}