static void Main(string[] args)
{
var calc = string.Join(" ", args);
var parse = ArithmeticParser.Parse(calc);
if (!parse.IsValid)
{
Console.Error.WriteLine("Invalid input:");
Console.Error.WriteLine(parse.ErrorMessage);
Environment.ExitCode = -1000;
return;
}
var answer = Computer.Compute(parse);
Console.WriteLine($"{calc} = {answer}");
}
public void ResultIsComputed()
{
//Arrange
var testStrings = new [] {
"5 + 3 * 6",
"5 * 3 + 6",
"5 * 2 + 3 / 4",
"5 * (2 + 3) / 4",
};
//Act
var results = testStrings
.Select(s => new { String = s, Result = ArithmeticParser.Parse(s) })
.ToList();
//Assert
var output = new Output();
output.FormatTable(results.Select(r => new { r.String, Description = r.Result.Describe(), Result = Computer.Compute(r.Result) }));
output.Report.Verify();
}
public void InputIsConverted()
{
//Arrange
var testStrings = new [] {
"1",
"32-5",
"(100 * 3)",
"100 + (3 * 5)",
"(3 * 5) + 100",
"1 + 2 + 3",
"1 + (3 * (5 + 6))",
"1 +",
"(1 + 3",
"(",
")",
"((1 + 2) * 3",
"(1 + 2) * 3)",
"5 + (10)"
};
//Act
var results = testStrings
.Select(s => new { String = s, Result = ArithmeticParser.Parse(s) })
.ToList();
//Assert
var output = new Output();
var report = results.AsReport(rep => rep
.AddColumn(r => r.String, cc => cc.Heading("Input"))
.AddColumn(r => r.Result.IsValid, cc => { })
.AddColumn(r => r.Result.Describe(), cc => cc.Heading("Result"))
.AddColumn(r => r.Result.ErrorMessage, cc => {})
);
output.FormatTable(report);
output.Report.Verify();
}