public void ReturnFalseForInValidTriangles(int sideA, int sideB, int sideC)
{
TriangleService triangle = new TriangleService(sideA, sideB, sideC);
Assert.IsFalse(triangle.isValidTriangle(), $"The triangle ({sideA}, {sideB}, {sideC}) should be an invalid triangle");
}