mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 14:52:33 +00:00
bd25b5f615
Because we gradually build the `ArgGroup` as we parse the YAML, we don't use `ArgGroup::new`. Clap3 introduced an internal `id` in addition to the public `name` and it appears that this custom initialization code was not updated. This shows the problem with publically exposing `impl Default`. Choices: - Remove `impl Default` - Always valid - Requires spreading invariants - Callers can't implement code the same way we do - Add `ArgGroup::name` - Can be constructed in an invalid state - Centralizes invariants - A caller could implement code like the yaml logic I decided to go with `ArgGroup::name`. Fixes #2719
54 lines
1.4 KiB
Rust
54 lines
1.4 KiB
Rust
#![cfg(not(tarpaulin))]
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use std::ffi::OsStr;
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use std::fs;
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use std::process::{Command, Output};
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fn run_example<S: AsRef<str>>(name: S, args: &[&str]) -> Output {
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let mut all_args = vec![
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"run",
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"--example",
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name.as_ref(),
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"--features",
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"yaml",
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"--",
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];
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all_args.extend_from_slice(args);
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Command::new(env!("CARGO"))
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.args(all_args)
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.output()
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.expect("failed to run example")
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}
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#[test]
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fn examples_are_functional() {
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let example_paths = fs::read_dir("examples")
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.expect("couldn't read examples directory")
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.map(|result| result.expect("couldn't get directory entry").path())
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.filter(|path| path.is_file() && path.extension().and_then(OsStr::to_str) == Some("rs"));
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let mut example_count = 0;
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for path in example_paths {
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example_count += 1;
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let example_name = path
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.file_stem()
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.and_then(OsStr::to_str)
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.expect("unable to determine example name");
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let help_output = run_example(example_name, &["--help"]);
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assert!(
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help_output.status.success(),
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"{} --help exited with nonzero: {}",
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example_name,
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String::from_utf8_lossy(&help_output.stderr),
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);
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assert!(
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!help_output.stdout.is_empty(),
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"{} --help had no output",
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example_name,
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);
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}
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assert!(example_count > 0);
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}
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