vendor/structopt/tests/deny-warnings.rs

   1 // Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
   2 //
   3 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   4 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   5 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   6 // option. This file may not be copied, modified, or distributed
   7 // except according to those terms.
   8
   9 #![deny(warnings)]
  10
  11 use structopt::StructOpt;
  12
  13 fn try_str(s: &str) -> Result<String, std::convert::Infallible> {
  14     Ok(s.into())
  15 }
  16
  17 #[test]
  18 fn warning_never_struct() {
  19     #[derive(Debug, PartialEq, StructOpt)]
  20     struct Opt {
  21         #[structopt(parse(try_from_str = try_str))]
  22         s: String,
  23     }
  24     assert_eq!(
  25         Opt {
  26             s: "foo".to_string()
  27         },
  28         Opt::from_iter(&["test", "foo"])
  29     );
  30 }
  31
  32 #[test]
  33 fn warning_never_enum() {
  34     #[derive(Debug, PartialEq, StructOpt)]
  35     enum Opt {
  36         Foo {
  37             #[structopt(parse(try_from_str = try_str))]
  38             s: String,
  39         },
  40     }
  41     assert_eq!(
  42         Opt::Foo {
  43             s: "foo".to_string()
  44         },
  45         Opt::from_iter(&["test", "foo", "foo"])
  46     );
  47 }