public void TestMethod1()
        {
            Lesson_2.Lesson2Tasks task_1 = new Lesson2Tasks();
            expected  = -1;
            actual    = Lesson2Tasks.threeNumMin(-1, -1, -1);
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            expected  = -1;
            actual    = Lesson2Tasks.threeNumMin(0, 12, -1);
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            expected  = -1;
            actual    = Lesson2Tasks.threeNumMin(1, -1, 16);
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            expected  = -1;
            actual    = Lesson2Tasks.threeNumMin(-1, 16, 15);
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            expected  = -1;
            actual    = Lesson2Tasks.threeNumMin(-1, 15, 16);
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);
        }
        public void TestMethod2()
        {
            Lesson_2.Lesson2Tasks task_2 = new Lesson2Tasks();
            actual    = Lesson2Tasks.numeralCountInNumber(245.23);
            expected  = 5;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            actual    = Lesson2Tasks.numeralCountInNumber(245);
            expected  = 3;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            actual    = Lesson2Tasks.numeralCountInNumber(0.42);
            expected  = 3;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);
        }
        public void TestMethod3()
        {
            Lesson_2.Lesson2Tasks task_6 = new Lesson2Tasks();
            actual    = Lesson2Tasks.goodNumCounter(1, 1000000);
            expected  = 95428;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);


            actual    = Lesson2Tasks.goodNumCounter(1, 11);
            expected  = 10;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);

            actual    = Lesson2Tasks.goodNumCounter(1, 1000);
            expected  = 213;
            tolerance = 0.001;
            Assert.AreEqual(expected, actual, tolerance);
        }