static Maybe <Version> GetPython3Version()
{
var executable = PythonBootstrapper.FindPythonExecutable();
var command = new CommandLine(executable).Argument("--version");
var runner = new TestCommandLineRunner(new InMemoryLog(), new CalamariVariables());
var result = runner.Execute(command.Build());
if (result.ExitCode != 0)
{
return(Maybe <Version> .None);
}
var allCapturedMessages = runner.Output.AllMessages.Aggregate((a, b) => $"{a}, {b}");
var pythonVersionMatch = PythonVersionFinder.Match(allCapturedMessages);
if (!pythonVersionMatch.Success)
{
return(Maybe <Version> .None);
}
var major = pythonVersionMatch.Groups[1].Value;
var minor = pythonVersionMatch.Groups[2].Value;
return(new Version(int.Parse(major), int.Parse(minor)).AsSome());
}
public void ScriptShouldFailIfExecutableDoesNotExist()
{
const string executable = "TestingCalamariThisExecutableShouldNeverExist";
var subject = new TestCommandLineRunner(new InMemoryLog(), new CalamariVariables());
var result = subject.Execute(new CommandLineInvocation(executable, "--version"));
result.HasErrors.Should().BeTrue();
subject.Output.Errors.Should().Contain(CommandLineRunner.ConstructWin32ExceptionMessage(executable));
}
