blob: ca41643477be57e3bcc6692062e048b8c4ed4137 [file] [log] [blame]
// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[macro_use]
extern crate structopt;
use structopt::StructOpt;
use std::ffi::{OsStr, OsString};
use std::num::ParseIntError;
use std::path::PathBuf;
#[derive(StructOpt, PartialEq, Debug)]
struct PathOpt {
#[structopt(short = "p", long = "path", parse(from_os_str))]
path: PathBuf,
#[structopt(short = "d", default_value = "../", parse(from_os_str))]
default_path: PathBuf,
#[structopt(short = "v", parse(from_os_str))]
vector_path: Vec<PathBuf>,
#[structopt(short = "o", parse(from_os_str))]
option_path_1: Option<PathBuf>,
#[structopt(short = "q", parse(from_os_str))]
option_path_2: Option<PathBuf>,
}
#[test]
fn test_path_opt_simple() {
assert_eq!(
PathOpt {
path: PathBuf::from("/usr/bin"),
default_path: PathBuf::from("../"),
vector_path: vec![
PathBuf::from("/a/b/c"),
PathBuf::from("/d/e/f"),
PathBuf::from("/g/h/i"),
],
option_path_1: None,
option_path_2: Some(PathBuf::from("j.zip")),
},
PathOpt::from_clap(&PathOpt::clap().get_matches_from(&[
"test", "-p", "/usr/bin", "-v", "/a/b/c", "-v", "/d/e/f", "-v", "/g/h/i", "-q",
"j.zip",
]))
);
}
fn parse_hex(input: &str) -> Result<u64, ParseIntError> {
u64::from_str_radix(input, 16)
}
#[derive(StructOpt, PartialEq, Debug)]
struct HexOpt {
#[structopt(short = "n", parse(try_from_str = "parse_hex"))]
number: u64,
}
#[test]
fn test_parse_hex() {
assert_eq!(
HexOpt { number: 5 },
HexOpt::from_clap(&HexOpt::clap().get_matches_from(&["test", "-n", "5"]))
);
assert_eq!(
HexOpt { number: 0xabcdef },
HexOpt::from_clap(&HexOpt::clap().get_matches_from(&["test", "-n", "abcdef"]))
);
let err = HexOpt::clap()
.get_matches_from_safe(&["test", "-n", "gg"])
.unwrap_err();
assert!(err.message.contains("invalid digit found in string"), err);
}
fn custom_parser_1(_: &str) -> &'static str {
"A"
}
fn custom_parser_2(_: &str) -> Result<&'static str, u32> {
Ok("B")
}
fn custom_parser_3(_: &OsStr) -> &'static str {
"C"
}
fn custom_parser_4(_: &OsStr) -> Result<&'static str, OsString> {
Ok("D")
}
#[derive(StructOpt, PartialEq, Debug)]
struct NoOpOpt {
#[structopt(short = "a", parse(from_str = "custom_parser_1"))]
a: &'static str,
#[structopt(short = "b", parse(try_from_str = "custom_parser_2"))]
b: &'static str,
#[structopt(short = "c", parse(from_os_str = "custom_parser_3"))]
c: &'static str,
#[structopt(short = "d", parse(try_from_os_str = "custom_parser_4"))]
d: &'static str,
}
#[test]
fn test_every_custom_parser() {
assert_eq!(
NoOpOpt {
a: "A",
b: "B",
c: "C",
d: "D"
},
NoOpOpt::from_clap(
&NoOpOpt::clap().get_matches_from(&["test", "-a=?", "-b=?", "-c=?", "-d=?"])
)
);
}
// Note: can't use `Vec<u8>` directly, as structopt would instead look for
// conversion function from `&str` to `u8`.
type Bytes = Vec<u8>;
#[derive(StructOpt, PartialEq, Debug)]
struct DefaultedOpt {
#[structopt(short = "b", parse(from_str))]
bytes: Bytes,
#[structopt(short = "i", parse(try_from_str))]
integer: u64,
#[structopt(short = "p", parse(from_os_str))]
path: PathBuf,
}
#[test]
fn test_parser_with_default_value() {
assert_eq!(
DefaultedOpt {
bytes: b"E\xc2\xb2=p\xc2\xb2c\xc2\xb2+m\xc2\xb2c\xe2\x81\xb4".to_vec(),
integer: 9000,
path: PathBuf::from("src/lib.rs"),
},
DefaultedOpt::from_clap(&DefaultedOpt::clap().get_matches_from(&[
"test",
"-b",
"E²=p²c²+m²c⁴",
"-i",
"9000",
"-p",
"src/lib.rs",
]))
);
}
#[derive(PartialEq, Debug)]
struct Foo(u8);
fn foo(value: u64) -> Foo {
Foo(value as u8)
}
#[derive(StructOpt, PartialEq, Debug)]
struct Occurrences {
#[structopt(short = "s", long = "signed", parse(from_occurrences))]
signed: i32,
#[structopt(short = "l", parse(from_occurrences))]
little_signed: i8,
#[structopt(short = "u", parse(from_occurrences))]
unsigned: usize,
#[structopt(short = "r", parse(from_occurrences))]
little_unsigned: u8,
#[structopt(
short = "c",
long = "custom",
parse(from_occurrences = "foo")
)]
custom: Foo,
}
#[test]
fn test_parser_occurrences() {
assert_eq!(
Occurrences {
signed: 3,
little_signed: 1,
unsigned: 0,
little_unsigned: 4,
custom: Foo(5),
},
Occurrences::from_clap(&Occurrences::clap().get_matches_from(&[
"test", "-s", "--signed", "--signed", "-l", "-rrrr", "-cccc", "--custom",
]))
);
}
#[test]
fn test_custom_bool() {
fn parse_bool(s: &str) -> Result<bool, String> {
match s {
"true" => Ok(true),
"false" => Ok(false),
_ => Err(format!("invalid bool {}", s)),
}
}
#[derive(StructOpt, PartialEq, Debug)]
struct Opt {
#[structopt(short = "d", parse(try_from_str = "parse_bool"))]
debug: bool,
#[structopt(
short = "v",
default_value = "false",
parse(try_from_str = "parse_bool")
)]
verbose: bool,
#[structopt(short = "t", parse(try_from_str = "parse_bool"))]
tribool: Option<bool>,
#[structopt(short = "b", parse(try_from_str = "parse_bool"))]
bitset: Vec<bool>,
}
assert!(Opt::clap().get_matches_from_safe(&["test"]).is_err());
assert!(Opt::clap().get_matches_from_safe(&["test", "-d"]).is_err());
assert!(
Opt::clap()
.get_matches_from_safe(&["test", "-dfoo"])
.is_err()
);
assert_eq!(
Opt {
debug: false,
verbose: false,
tribool: None,
bitset: vec![],
},
Opt::from_iter(&["test", "-dfalse"])
);
assert_eq!(
Opt {
debug: true,
verbose: false,
tribool: None,
bitset: vec![],
},
Opt::from_iter(&["test", "-dtrue"])
);
assert_eq!(
Opt {
debug: true,
verbose: false,
tribool: None,
bitset: vec![],
},
Opt::from_iter(&["test", "-dtrue", "-vfalse"])
);
assert_eq!(
Opt {
debug: true,
verbose: true,
tribool: None,
bitset: vec![],
},
Opt::from_iter(&["test", "-dtrue", "-vtrue"])
);
assert_eq!(
Opt {
debug: true,
verbose: false,
tribool: Some(false),
bitset: vec![],
},
Opt::from_iter(&["test", "-dtrue", "-tfalse"])
);
assert_eq!(
Opt {
debug: true,
verbose: false,
tribool: Some(true),
bitset: vec![],
},
Opt::from_iter(&["test", "-dtrue", "-ttrue"])
);
assert_eq!(
Opt {
debug: true,
verbose: false,
tribool: None,
bitset: vec![false, true, false, false],
},
Opt::from_iter(&["test", "-dtrue", "-bfalse", "-btrue", "-bfalse", "-bfalse"])
);
}