mirror of
https://github.com/clap-rs/clap
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53 lines
1.4 KiB
Rust
53 lines
1.4 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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#![deny(warnings)]
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use clap::Parser;
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fn try_str(s: &str) -> Result<String, std::convert::Infallible> {
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Ok(s.into())
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}
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#[test]
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fn warning_never_struct() {
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#[derive(Parser, Debug, PartialEq)]
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struct Opt {
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#[clap(value_parser = try_str, default_value_t)]
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s: String,
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}
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assert_eq!(
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Opt {
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s: "foo".to_string()
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},
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Opt::try_parse_from(&["test", "foo"]).unwrap()
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);
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}
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#[test]
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fn warning_never_enum() {
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#[derive(Parser, Debug, PartialEq)]
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enum Opt {
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Foo {
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#[clap(value_parser = try_str, default_value_t)]
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s: String,
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},
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}
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assert_eq!(
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Opt::Foo {
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s: "foo".to_string()
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},
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Opt::try_parse_from(&["test", "foo", "foo"]).unwrap()
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);
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}
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