public void is_errored()
        {
            // ARRANGE
            // ACT
            var viewModel = new ReplLineViewModel("stdin(2,1): error FS0039: The value or constructor 'sssss' is not defined", true);

            // ASSERT
            Assert.That(viewModel.IsError, Is.True);
        }
        public void is_errored()
        {
            // ARRANGE
            // ACT
            var viewModel = new ReplLineViewModel("stdin(2,1): error FS0039: The value or constructor 'sssss' is not defined", true);

            // ASSERT
            Assert.That(viewModel.IsError, Is.True);
        }
        public void is_not_errored()
        {
            // ARRANGE
            // ACT
            var viewModel = new ReplLineViewModel("val x : float = 23.0");

            // ASSERT
            Assert.That(viewModel.IsError, Is.False);
        }
        public void is_not_errored()
        {
            // ARRANGE
            // ACT
            var viewModel = new ReplLineViewModel("val x : float = 23.0");

            // ASSERT
            Assert.That(viewModel.IsError, Is.False);
        }