public void GenerateRandomValueTest(int min, int max, int actual, [Frozen] Mock <IRandomExecutor> executor, RandomService sut)
{
//arrange
executor.Setup(service => service.Next(min - 500, max - 500)).Returns(actual);
//act
var expected = sut.GenerateRandomValue(min, max);
//assert
executor.Verify(service => service.Next(min - 500, max - 500), Times.AtLeastOnce);
Assert.Equal(expected, actual);
}