Replies: 1 comment 3 replies
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What I do is have a method that creates the parser data structures and takes in For example, something like: [Theory]
[InlineData("quiet", LogLevel.Quiet)]
[InlineData("detailed", LogLevel.Detailed)]
public async Task ValidateFooBarVerbosity(string input, LogLevel expected)
{
CliCommand parser = FooBarCommand.Create(ValidateArguments);
_ = await parser.Parse($"foo -v {input}").InvokeAsync();
async Task ValidateArguments(FooBarArguments args)
{
args.Verbosity.Should().Be(expected);
}
}Writing tests for error conditions is a bit different, instead of This way I can write many exhaustive tests for the CLI parsing, without it actually executing the product code, so it's nice and fast to execute and doesn't have side effects. |
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If I understand right you don't actually register the command handlers when creating the commandline, does that not double the work and make the test prone to not test the actual commandline setup, or maybe I misunderstood? In my case I use the pattern supporting any number of option values and I have a commandline class that in static form builds the command and in dynamic form contains all the option values. Maybe I need to investigate how to navigate the ParseResult structure? RootCommand rootCommand = CommandLineOptions.CreateRootCommand();
ParseResult parseResult = rootCommand.Parse(commandline);
_ = parseResult.RootCommandResult.Command.Name.Should().Be(command);
// TODO: How to get access to option values?
// TODO: How to get acccess to CommandLineOptions class? |
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yes, a command handler is registered when creating the (sub) NuGet's |
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Ok, this is pretty cool, but far from my simplistic architecture. In your example, is there any way to get access to the instance of If possible it would make my life so much easier as I can just create a command args class instance in |
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Looking for advice and example code on how to add unit tests for CLI parsing correctness?
Some way to provide a string, run parse on it, then test for success/failure and value presence, seems not too difficult, but is there a way to express the results in e.g. xUnit
[Theory]section?Beta Was this translation helpful? Give feedback.
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