public void IsValid_Returns_False_For_Empty_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid(string.Empty);

            // Assert
            Assert.False(isValid);
        }
        public void IsValid_Returns_True_For_Valid_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid("A");

            // Assert
            Assert.True(isValid);
        }
        public void IsValid_Returns_False_For_Empty_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid(string.Empty);

            // Assert
            Assert.False(isValid);
        }
        public void IsValid_Returns_False_For_Invalid_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid("asdasdas");

            // Assert
            Assert.False(isValid);
        }
        public void IsValid_Returns_False_For_Invalid_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid("asdasdas");

            // Assert
            Assert.False(isValid);
        }
        public void IsValid_Returns_True_For_Valid_Code()
        {
            // Arrange
            var helper = new CompilationLevelHelper();

            // Act
            var isValid = helper.IsValid("A");

            // Assert
            Assert.True(isValid);
        }