// Copyright 2018 Guillaume Pinot (@TeXitoi) , // Kevin Knapp (@kbknapp) , and // Ana Hobden (@hoverbear) // // Licensed under the Apache License, Version 2.0 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // // This work was derived from Structopt (https://github.com/TeXitoi/structopt) // commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the // MIT/Apache 2.0 license. use clap::error::ErrorKind; use clap::Parser; use std::num::ParseIntError; pub const DISPLAY_ORDER: usize = 2; // Check if the global settings compile #[derive(Parser, Debug, PartialEq, Eq)] #[command(group = clap::ArgGroup::new("foo"))] struct Opt { #[arg( long = "x", display_order = DISPLAY_ORDER, next_line_help = true, default_value = "0", require_equals = true, )] x: i32, #[arg(short = 'l', long = "level", aliases = ["set-level", "lvl"])] level: String, #[arg(long("values"))] values: Vec, #[arg(id = "FILE", requires_if("FILE", "values"))] files: Vec, } #[test] fn test_slice() { assert_eq!( Opt { x: 0, level: "1".to_string(), files: Vec::new(), values: vec![], }, Opt::try_parse_from(&["test", "-l", "1"]).unwrap() ); assert_eq!( Opt { x: 0, level: "1".to_string(), files: Vec::new(), values: vec![], }, Opt::try_parse_from(&["test", "--level", "1"]).unwrap() ); assert_eq!( Opt { x: 0, level: "1".to_string(), files: Vec::new(), values: vec![], }, Opt::try_parse_from(&["test", "--set-level", "1"]).unwrap() ); assert_eq!( Opt { x: 0, level: "1".to_string(), files: Vec::new(), values: vec![], }, Opt::try_parse_from(&["test", "--lvl", "1"]).unwrap() ); } #[test] fn test_multi_args() { assert_eq!( Opt { x: 0, level: "1".to_string(), files: vec!["file".to_string()], values: vec![], }, Opt::try_parse_from(&["test", "-l", "1", "file"]).unwrap() ); assert_eq!( Opt { x: 0, level: "1".to_string(), files: vec!["FILE".to_string()], values: vec![1], }, Opt::try_parse_from(&["test", "-l", "1", "--values", "1", "--", "FILE"]).unwrap() ); } #[test] fn test_multi_args_fail() { let result = Opt::try_parse_from(&["test", "-l", "1", "--", "FILE"]); assert!(result.is_err()); } #[test] fn test_bool() { assert_eq!( Opt { x: 1, level: "1".to_string(), files: vec![], values: vec![], }, Opt::try_parse_from(&["test", "-l", "1", "--x=1"]).unwrap() ); let result = Opt::try_parse_from(&["test", "-l", "1", "--x", "1"]); assert!(result.is_err()); assert_eq!(result.unwrap_err().kind(), ErrorKind::NoEquals); } fn parse_hex(input: &str) -> Result { u64::from_str_radix(input, 16) } #[derive(Parser, PartialEq, Debug)] struct HexOpt { #[arg(short, value_parser = parse_hex)] number: u64, } #[test] fn test_parse_hex_function_path() { assert_eq!( HexOpt { number: 5 }, HexOpt::try_parse_from(&["test", "-n", "5"]).unwrap() ); assert_eq!( HexOpt { number: 0x00ab_cdef }, HexOpt::try_parse_from(&["test", "-n", "abcdef"]).unwrap() ); let err = HexOpt::try_parse_from(&["test", "-n", "gg"]).unwrap_err(); assert!( err.to_string().contains("invalid digit found in string"), "{}", err ); }