mirror of
https://github.com/clap-rs/clap
synced 2024-12-16 07:42:32 +00:00
d840d5650e
Before #2005, `Clap` was a special trait that derived all clap traits it detected were relevant (including an enum getting both `ArgEnum`, `Clap`, and `Subcommand`). Now, we have elevated `Clap`, `Args`, `Subcommand`, and `ArgEnum` to be user facing but the name `Clap` isn't very descriptive. This also helps further clarify the relationships so a crate providing an item to be `#[clap(flatten)]` or `#[clap(subcommand)]` is more likely to choose the needed trait to derive. Also, my proposed fix fo #2785 includes making `App` attributes almost exclusively for `Clap`. Clarifying the names/roles will help communicate this. For prior discussion, see #2583
46 lines
979 B
Rust
46 lines
979 B
Rust
mod utils;
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use clap::Parser;
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use utils::*;
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#[test]
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fn it_works() {
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#[derive(Debug, PartialEq, Parser)]
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#[clap(rename_all_env = "kebab")]
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struct BehaviorModel {
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#[clap(env)]
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be_nice: String,
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}
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let help = get_help::<BehaviorModel>();
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assert!(help.contains("[env: be-nice=]"));
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}
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#[test]
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fn default_is_screaming() {
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#[derive(Debug, PartialEq, Parser)]
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struct BehaviorModel {
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#[clap(env)]
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be_nice: String,
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}
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let help = get_help::<BehaviorModel>();
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assert!(help.contains("[env: BE_NICE=]"));
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}
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#[test]
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fn overridable() {
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#[derive(Debug, PartialEq, Parser)]
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#[clap(rename_all_env = "kebab")]
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struct BehaviorModel {
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#[clap(env)]
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be_nice: String,
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#[clap(rename_all_env = "pascal", env)]
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be_agressive: String,
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}
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let help = get_help::<BehaviorModel>();
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assert!(help.contains("[env: be-nice=]"));
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assert!(help.contains("[env: BeAgressive=]"));
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}
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