2018-02-25 10:22:24 +00:00
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// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
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2017-11-09 09:23:02 +00:00
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//
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2018-02-25 10:22:24 +00:00
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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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2017-11-09 09:23:02 +00:00
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#[macro_use]
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2018-01-29 22:51:40 +00:00
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extern crate structopt;
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2017-11-09 09:23:02 +00:00
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use structopt::StructOpt;
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use std::path::PathBuf;
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use std::num::ParseIntError;
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use std::ffi::{OsStr, OsString};
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#[derive(StructOpt, PartialEq, Debug)]
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struct PathOpt {
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#[structopt(short = "p", long = "path", parse(from_os_str))]
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path: PathBuf,
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#[structopt(short = "d", default_value = "../", parse(from_os_str))]
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default_path: PathBuf,
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#[structopt(short = "v", parse(from_os_str))]
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vector_path: Vec<PathBuf>,
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#[structopt(short = "o", parse(from_os_str))]
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option_path_1: Option<PathBuf>,
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#[structopt(short = "q", parse(from_os_str))]
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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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2018-01-30 17:38:35 +00:00
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PathOpt::from_clap(&PathOpt::clap().get_matches_from(&[
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2017-11-09 09:23:02 +00:00
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"test",
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"-p", "/usr/bin",
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"-v", "/a/b/c",
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"-v", "/d/e/f",
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"-v", "/g/h/i",
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"-q", "j.zip",
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]))
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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(StructOpt, PartialEq, Debug)]
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struct HexOpt {
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#[structopt(short = "n", parse(try_from_str = "parse_hex"))]
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number: u64,
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}
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#[test]
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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::from_clap(&HexOpt::clap().get_matches_from(&["test", "-n", "5"]))
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);
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assert_eq!(
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HexOpt { number: 0xabcdef },
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HexOpt::from_clap(&HexOpt::clap().get_matches_from(&["test", "-n", "abcdef"]))
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2017-11-09 09:23:02 +00:00
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);
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let err = HexOpt::clap().get_matches_from_safe(&["test", "-n", "gg"]).unwrap_err();
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assert!(err.message.contains("invalid digit found in string"), err);
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}
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fn custom_parser_1(_: &str) -> &'static str {
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"A"
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}
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fn custom_parser_2(_: &str) -> Result<&'static str, u32> {
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Ok("B")
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}
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fn custom_parser_3(_: &OsStr) -> &'static str {
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"C"
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}
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fn custom_parser_4(_: &OsStr) -> Result<&'static str, OsString> {
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Ok("D")
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}
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#[derive(StructOpt, PartialEq, Debug)]
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struct NoOpOpt {
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#[structopt(short = "a", parse(from_str = "custom_parser_1"))]
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a: &'static str,
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#[structopt(short = "b", parse(try_from_str = "custom_parser_2"))]
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b: &'static str,
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#[structopt(short = "c", parse(from_os_str = "custom_parser_3"))]
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c: &'static str,
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#[structopt(short = "d", parse(try_from_os_str = "custom_parser_4"))]
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d: &'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 { a: "A", b: "B", c: "C", d: "D" },
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NoOpOpt::from_clap(&NoOpOpt::clap().get_matches_from(&[
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2017-11-09 09:23:02 +00:00
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"test", "-a=?", "-b=?", "-c=?", "-d=?",
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]))
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);
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}
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// Note: can't use `Vec<u8>` directly, as structopt would instead look for
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// conversion function from `&str` to `u8`.
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type Bytes = Vec<u8>;
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#[derive(StructOpt, PartialEq, Debug)]
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struct DefaultedOpt {
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#[structopt(short = "b", parse(from_str))]
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bytes: Bytes,
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#[structopt(short = "i", parse(try_from_str))]
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integer: u64,
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#[structopt(short = "p", parse(from_os_str))]
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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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bytes: b"E\xc2\xb2=p\xc2\xb2c\xc2\xb2+m\xc2\xb2c\xe2\x81\xb4".to_vec(),
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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::from_clap(&DefaultedOpt::clap().get_matches_from(&[
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2017-11-09 09:23:02 +00:00
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"test",
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"-b", "E²=p²c²+m²c⁴",
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"-i", "9000",
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"-p", "src/lib.rs",
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]))
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);
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}
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2018-02-03 14:15:03 +00:00
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#[derive(PartialEq, Debug)]
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struct Foo(u8);
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fn foo(value: u64) -> Foo {
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Foo(value as u8)
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}
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#[derive(StructOpt, PartialEq, Debug)]
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struct Occurrences {
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#[structopt(short = "s", long = "signed", parse(from_occurrences))]
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signed: i32,
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#[structopt(short = "l", parse(from_occurrences))]
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little_signed: i8,
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#[structopt(short = "u", parse(from_occurrences))]
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unsigned: usize,
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#[structopt(short = "r", parse(from_occurrences))]
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little_unsigned: u8,
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#[structopt(short = "c", long = "custom", parse(from_occurrences = "foo"))]
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custom: Foo,
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}
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#[test]
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fn test_parser_occurrences() {
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assert_eq!(
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Occurrences {
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signed: 3,
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little_signed: 1,
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unsigned: 0,
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little_unsigned: 4,
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custom: Foo(5),
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},
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2018-01-30 17:38:35 +00:00
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Occurrences::from_clap(&Occurrences::clap().get_matches_from(&[
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2018-02-03 14:15:03 +00:00
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"test", "-s", "--signed", "--signed", "-l", "-rrrr", "-cccc", "--custom"
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]))
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);
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}
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