private void ShowTextFileResultButton_OnClick(object sender, RoutedEventArgs e)
        {
            var lines   = SymbolFileParser.ParseFile(TxtPath);
            var formula = LinesToWpfMathConverter.Convert(lines);

            FormulaTextBox.Text = formula;
        }
        private static void BaseConvertTest(string expected, string name)
        {
            var path   = TestUtilities.GetTestDataPath(name);
            var lines  = SymbolFileParser.ParseFile(path);
            var actual = LinesToWpfMathConverter.Convert(lines);

            Assert.AreEqual(expected, actual);
        }