public void TestMethod7()
        {
            //Arrange
            string str      = "Bankruptcies";
            bool   expected = true;
            //Act
            bool actual = Challenge100.IsIsogram(str);

            //Assert
            Assert.AreEqual(actual, expected);
        }
        public void TestMethod6()
        {
            //Arrange
            string str      = "Consecutive";
            bool   expected = false;
            //Act
            bool actual = Challenge100.IsIsogram(str);

            //Assert
            Assert.AreEqual(actual, expected);
        }
        public void TestMethod3()
        {
            //Arrange
            string str      = "Dermatoglyphics";
            bool   expected = true;
            //Act
            bool actual = Challenge100.IsIsogram(str);

            //Assert
            Assert.AreEqual(actual, expected);
        }
        public void TestMethod5()
        {
            //Arrange
            string str      = "Filmography";
            bool   expected = true;
            //Act
            bool actual = Challenge100.IsIsogram(str);

            //Assert
            Assert.AreEqual(actual, expected);
        }
        public void TestMethod8()
        {
            //Arrange
            string str      = "Unforgivable";
            bool   expected = true;
            //Act
            bool actual = Challenge100.IsIsogram(str);

            //Assert
            Assert.AreEqual(actual, expected);
        }