mirror of
https://github.com/clap-rs/clap
synced 2024-12-13 22:32:33 +00:00
2d83a7b12e
This is a cheap pass at creating this to allow cutting out the cost of rich error information / programmatic error information. This cuts about 20 KiB off of the binary. There is more we could cut out, like collecting of used arguments for the usage, but I want to keep the conditionals simple.
145 lines
3.5 KiB
Rust
145 lines
3.5 KiB
Rust
// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>,
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// Kevin Knapp (@kbknapp) <kbknapp@gmail.com>, and
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// Ana Hobden (@hoverbear) <operator@hoverbear.org>
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//
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// This work was derived from Structopt (https://github.com/TeXitoi/structopt)
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// commit#ea76fa1b1b273e65e3b0b1046643715b49bec51f which is licensed under the
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// MIT/Apache 2.0 license.
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use clap::Parser;
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use std::num::ParseIntError;
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use std::path::PathBuf;
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#[derive(Parser, PartialEq, Debug)]
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struct PathOpt {
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#[arg(short, long)]
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path: PathBuf,
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#[arg(short, default_value = "../")]
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default_path: PathBuf,
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#[arg(short)]
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vector_path: Vec<PathBuf>,
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#[arg(short)]
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option_path_1: Option<PathBuf>,
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#[arg(short = 'q')]
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option_path_2: Option<PathBuf>,
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}
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#[test]
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fn test_path_opt_simple() {
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assert_eq!(
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PathOpt {
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path: PathBuf::from("/usr/bin"),
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default_path: PathBuf::from("../"),
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vector_path: vec![
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PathBuf::from("/a/b/c"),
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PathBuf::from("/d/e/f"),
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PathBuf::from("/g/h/i"),
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],
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option_path_1: None,
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option_path_2: Some(PathBuf::from("j.zip")),
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},
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PathOpt::try_parse_from(&[
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"test", "-p", "/usr/bin", "-v", "/a/b/c", "-v", "/d/e/f", "-v", "/g/h/i", "-q",
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"j.zip",
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])
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.unwrap()
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);
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}
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fn parse_hex(input: &str) -> Result<u64, ParseIntError> {
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u64::from_str_radix(input, 16)
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}
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#[derive(Parser, PartialEq, Debug)]
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struct HexOpt {
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#[arg(short, value_parser = parse_hex)]
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number: u64,
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}
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#[test]
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#[cfg(feature = "error-context")]
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fn test_parse_hex() {
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assert_eq!(
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HexOpt { number: 5 },
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HexOpt::try_parse_from(&["test", "-n", "5"]).unwrap()
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);
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assert_eq!(
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HexOpt {
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number: 0x00ab_cdef
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},
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HexOpt::try_parse_from(&["test", "-n", "abcdef"]).unwrap()
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);
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let err = HexOpt::try_parse_from(&["test", "-n", "gg"]).unwrap_err();
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assert!(
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err.to_string().contains("invalid digit found in string"),
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"{}",
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err
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);
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}
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#[derive(Debug)]
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struct ErrCode(u32);
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impl std::error::Error for ErrCode {}
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impl std::fmt::Display for ErrCode {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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std::fmt::Display::fmt(&self.0, f)
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}
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}
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fn custom_parser_2(_: &str) -> Result<&'static str, ErrCode> {
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Ok("B")
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}
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#[derive(Parser, PartialEq, Debug)]
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struct NoOpOpt {
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#[arg(short, value_parser = custom_parser_2)]
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b: &'static str,
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}
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#[test]
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fn test_every_custom_parser() {
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assert_eq!(
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NoOpOpt { b: "B" },
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NoOpOpt::try_parse_from(&["test", "-b=?"]).unwrap()
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);
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}
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#[test]
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fn update_every_custom_parser() {
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let mut opt = NoOpOpt { b: "0" };
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opt.try_update_from(&["test", "-b=?"]).unwrap();
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assert_eq!(NoOpOpt { b: "B" }, opt);
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}
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#[derive(Parser, PartialEq, Debug)]
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struct DefaultedOpt {
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#[arg(short)]
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integer: u64,
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#[arg(short)]
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path: PathBuf,
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}
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#[test]
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fn test_parser_with_default_value() {
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assert_eq!(
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DefaultedOpt {
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integer: 9000,
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path: PathBuf::from("src/lib.rs"),
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},
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DefaultedOpt::try_parse_from(&["test", "-i", "9000", "-p", "src/lib.rs",]).unwrap()
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);
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}
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