public void GetNextCommand_Test()
{
var target = new CommandSourceCollection();
target.AddToEnd(new QueueCommandSource("test1"));
target.AddToEnd(new QueueCommandSource("test2"));
target.GetNextCommand().String.Should().Be("test1");
target.GetNextCommand().String.Should().Be("test2");
target.GetNextCommand().Should().Be(null);
}
/// <summary>
/// Runs interactively, setting the environment to the value given and then
/// prompting the user for commands to execute. Returns when the user has entered
/// the 'exit' or 'quit' commands, or when some other verb has set the exit
/// condition.
/// </summary>
/// <param name="environment"></param>
public int RunInteractively(string environment)
{
SetupState(false);
var source = new CommandSourceCollection();
// Change the environment if necessary. Otherwise the EngineStartInteractive
// script will probably prompt the user to do so.
if (!string.IsNullOrEmpty(environment))
{
source.AddToEnd($"{EnvironmentHandler.Name} '{environment}'");
}
source.AddToEnd(_state.EventCatalog.EngineStartInteractive, _parser);
source.AddToEnd(new PromptCommandSource(Output, Environments, _state));
return(RunLoop(source));
}
/// <summary>
/// Run the application in headless mode with the provided commandline string.
/// </summary>
/// <param name="commandLine"></param>
/// <returns></returns>
public int RunHeadless(string commandLine)
{
SetupState(true);
var sources = new CommandSourceCollection();
// If we have a single argument "help", run the help script and exit. We don't
// require a valid environment to run help
if (commandLine == "help")
{
sources.AddToEnd(_state.EventCatalog.HeadlessHelp, _parser,
("exitcode", Constants.ExitCodeHeadlessHelp.ToString())
);
return(RunLoop(sources));
}
// Now see if the first argument is the name of an environment. If so, switch
// to that environment and continue
var(startingEnvironment, newCl) = GetStartingEnvironment(commandLine);
commandLine = newCl;
// If there is no commandline left, run the HeadlessNoArgs script
if (string.IsNullOrWhiteSpace(commandLine))
{
sources.AddToEnd(_state.EventCatalog.HeadlessNoArgs, _parser,
("exitcode", Constants.ExitCodeHeadlessNoVerb.ToString())
);
return(RunLoop(sources));
}
// Setup the Headless start script, an environment change command if any, the
// user command, and the headless stop script
sources.AddToEnd(_state.EventCatalog.EngineStartHeadless, _parser);
if (!string.IsNullOrWhiteSpace(startingEnvironment))
{
sources.AddToEnd($"{EnvironmentHandler.Name} '{startingEnvironment}'");
}
sources.AddToEnd(commandLine);
sources.AddToEnd(_state.EventCatalog.EngineStopHeadless, _parser);
return(RunLoop(sources));
}
public void GetNextCommand_Empty()
{
var target = new CommandSourceCollection();
target.GetNextCommand().Should().Be(null);
}
