public void Argument_can_fallback_to_default_when_customizing(
bool conditionA,
bool conditionB,
bool conditionC,
string expected)
{
var command = new Command("test");
var argument = new Argument <string>("arg", "description");
argument.SetDefaultValue("default");
command.AddArgument(argument);
var helpBuilder = new HelpBuilder(LocalizationResources.Instance, LargeMaxWidth);
helpBuilder.CustomizeSymbol(argument,
firstColumnText: ctx => conditionA ? "custom 1st" : HelpBuilder.Default.GetArgumentUsageLabel(argument),
secondColumnText: ctx => conditionB ? "custom 2nd" : HelpBuilder.Default.GetArgumentDescription(argument),
defaultValue: ctx => conditionC ? "custom def" : HelpBuilder.Default.GetArgumentDefaultValue(argument));
var parser = new CommandLineBuilder(command)
.UseDefaults()
.UseHelpBuilder(_ => helpBuilder)
.Build();
var console = new TestConsole();
parser.Invoke("test -h", console);
console.Out.ToString().Should().MatchRegex(expected);
}
private static void SetHelpCustomizations(HelpBuilder builder)
{
foreach (var option in HelpDescriptionCustomizations.Keys)
{
Func <HelpContext, string> descriptionCallback = (HelpContext context) =>
{
foreach (var(command, helpText) in HelpDescriptionCustomizations[option])
{
if (context.ParseResult.CommandResult.Command.Equals(command))
{
return(helpText);
}
}
return(null);
};
builder.CustomizeSymbol(option, secondColumnText: descriptionCallback);
}
public void Option_can_customize_second_column_text_based_on_parse_result()
{
var option = new Option <bool>("option");
var commandA = new Command("a", "a command help")
{
option
};
var commandB = new Command("b", "b command help")
{
option
};
var command = new Command("root", "root command help")
{
commandA, commandB
};
var optionADescription = "option a help";
var optionBDescription = "option b help";
var helpBuilder = new HelpBuilder(LocalizationResources.Instance, LargeMaxWidth);
helpBuilder.CustomizeSymbol(option, secondColumnText: ctx =>
ctx.Command.Equals(commandA)
? optionADescription
: optionBDescription);
var parser = new CommandLineBuilder(command)
.UseDefaults()
.UseHelpBuilder(_ => helpBuilder)
.Build();
var console = new TestConsole();
parser.Invoke("root a -h", console);
console.Out.ToString().Should().Contain($"option {optionADescription}");
console = new TestConsole();
parser.Invoke("root b -h", console);
console.Out.ToString().Should().Contain($"option {optionBDescription}");
}
public void Option_can_fallback_to_default_when_customizing(bool conditionA, bool conditionB, string expected)
{
var command = new Command("test");
var option = new Option <string>("--option", "description");
command.AddOption(option);
var helpBuilder = new HelpBuilder(LocalizationResources.Instance, LargeMaxWidth);
helpBuilder.CustomizeSymbol(option,
firstColumnText: ctx => conditionA ? "custom 1st" : HelpBuilder.Default.GetIdentifierSymbolUsageLabel(option, ctx),
secondColumnText: ctx => conditionB ? "custom 2nd" : HelpBuilder.Default.GetIdentifierSymbolDescription(option));
var parser = new CommandLineBuilder(command)
.UseDefaults()
.UseHelpBuilder(_ => helpBuilder)
.Build();
var console = new TestConsole();
parser.Invoke("test -h", console);
console.Out.ToString().Should().MatchRegex(expected);
}