mirror of
https://github.com/clap-rs/clap
synced 2025-03-04 23:37:32 +00:00
83d6add9aa
In surveying various tools and CLI parsers, I noticed they list the subcommands first. This puts an emphasis on them which makes sense because that is most likely what an end user is supposed to pass in next. Listing them last aligns with the usage order but it probably doesn't outweigh the value of getting a user moving forward.
336 lines
9 KiB
Rust
336 lines
9 KiB
Rust
use super::utils;
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use std::str;
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use clap::{Arg, ArgAction, Command};
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#[test]
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fn no_derive_order() {
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static NO_DERIVE_ORDER: &str = "test 1.2
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Usage:
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test [OPTIONS]
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Options:
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--flag_a second flag
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--flag_b first flag
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-h, --help Print help information
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--option_a <option_a> second option
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--option_b <option_b> first option
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-V, --version Print version information
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";
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let cmd = Command::new("test")
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.version("1.2")
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.next_display_order(None)
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.args(&[
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Arg::new("flag_b")
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.long("flag_b")
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.help("first flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("first option"),
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Arg::new("flag_a")
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.long("flag_a")
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.help("second flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("second option"),
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]);
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utils::assert_output(cmd, "test --help", NO_DERIVE_ORDER, false);
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}
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#[test]
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fn derive_order() {
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static UNIFIED_HELP_AND_DERIVE: &str = "test 1.2
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Usage:
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test [OPTIONS]
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Options:
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--flag_b first flag
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--option_b <option_b> first option
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--flag_a second flag
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--option_a <option_a> second option
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-h, --help Print help information
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-V, --version Print version information
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";
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let cmd = Command::new("test").version("1.2").args(&[
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Arg::new("flag_b")
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.long("flag_b")
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.help("first flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("first option"),
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Arg::new("flag_a")
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.long("flag_a")
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.help("second flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("second option"),
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]);
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utils::assert_output(cmd, "test --help", UNIFIED_HELP_AND_DERIVE, false);
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}
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#[test]
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fn derive_order_next_order() {
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static HELP: &str = "test 1.2
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Usage:
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test [OPTIONS]
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Options:
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--flag_b first flag
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--option_b <option_b> first option
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-h, --help Print help information
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-V, --version Print version information
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--flag_a second flag
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--option_a <option_a> second option
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";
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let cmd = Command::new("test")
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.version("1.2")
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.next_display_order(10000)
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.arg(
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Arg::new("flag_a")
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.long("flag_a")
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.help("second flag")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("second option"),
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)
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.next_display_order(10)
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.arg(
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Arg::new("flag_b")
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.long("flag_b")
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.help("first flag")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("first option"),
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);
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utils::assert_output(cmd, "test --help", HELP, false);
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}
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#[test]
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fn derive_order_no_next_order() {
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static HELP: &str = "test 1.2
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Usage:
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test [OPTIONS]
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Options:
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--flag_a first flag
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--flag_b second flag
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-h, --help Print help information
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--option_a <option_a> first option
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--option_b <option_b> second option
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-V, --version Print version information
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";
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let cmd = Command::new("test")
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.version("1.2")
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.next_display_order(None)
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.arg(
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Arg::new("flag_a")
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.long("flag_a")
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.help("first flag")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("first option"),
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)
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.arg(
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Arg::new("flag_b")
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.long("flag_b")
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.help("second flag")
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.action(ArgAction::SetTrue),
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)
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.arg(
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("second option"),
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);
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utils::assert_output(cmd, "test --help", HELP, false);
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}
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#[test]
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fn derive_order_subcommand_propagate() {
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static UNIFIED_DERIVE_SC_PROP: &str = "test-sub 1.2
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Usage:
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test sub [OPTIONS]
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Options:
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--flag_b first flag
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--option_b <option_b> first option
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--flag_a second flag
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--option_a <option_a> second option
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-h, --help Print help information
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-V, --version Print version information
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";
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let cmd = Command::new("test").subcommand(
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Command::new("sub").version("1.2").args(&[
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Arg::new("flag_b")
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.long("flag_b")
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.help("first flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("first option"),
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Arg::new("flag_a")
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.long("flag_a")
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.help("second flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("second option"),
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]),
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);
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utils::assert_output(cmd, "test sub --help", UNIFIED_DERIVE_SC_PROP, false);
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}
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#[test]
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fn derive_order_subcommand_propagate_with_explicit_display_order() {
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static UNIFIED_DERIVE_SC_PROP_EXPLICIT_ORDER: &str = "test-sub 1.2
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Usage:
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test sub [OPTIONS]
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Options:
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--flag_a second flag
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--flag_b first flag
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--option_b <option_b> first option
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--option_a <option_a> second option
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-h, --help Print help information
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-V, --version Print version information
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";
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let cmd = Command::new("test").subcommand(
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Command::new("sub").version("1.2").args(&[
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Arg::new("flag_b")
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.long("flag_b")
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.help("first flag")
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.action(ArgAction::SetTrue),
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Arg::new("option_b")
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.long("option_b")
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.action(ArgAction::Set)
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.help("first option"),
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Arg::new("flag_a")
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.long("flag_a")
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.help("second flag")
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.display_order(0)
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.action(ArgAction::SetTrue),
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Arg::new("option_a")
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.long("option_a")
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.action(ArgAction::Set)
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.help("second option"),
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]),
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);
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utils::assert_output(
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cmd,
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"test sub --help",
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UNIFIED_DERIVE_SC_PROP_EXPLICIT_ORDER,
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false,
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);
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}
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#[test]
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fn subcommand_sorted_display_order() {
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static SUBCMD_ALPHA_ORDER: &str = "test 1
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Usage:
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test [SUBCOMMAND]
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Subcommands:
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a1 blah a1
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b1 blah b1
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help Print this message or the help of the given subcommand(s)
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Options:
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-h, --help Print help information
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-V, --version Print version information
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";
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let app_subcmd_alpha_order = Command::new("test")
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.version("1")
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.next_display_order(None)
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.subcommands(vec![
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Command::new("b1")
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.about("blah b1")
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.arg(Arg::new("test").short('t').action(ArgAction::SetTrue)),
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Command::new("a1")
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.about("blah a1")
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.arg(Arg::new("roster").short('r').action(ArgAction::SetTrue)),
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]);
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utils::assert_output(
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app_subcmd_alpha_order,
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"test --help",
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SUBCMD_ALPHA_ORDER,
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false,
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);
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}
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#[test]
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fn subcommand_derived_display_order() {
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static SUBCMD_DECL_ORDER: &str = "test 1
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Usage:
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test [SUBCOMMAND]
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Subcommands:
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b1 blah b1
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a1 blah a1
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help Print this message or the help of the given subcommand(s)
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Options:
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-h, --help Print help information
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-V, --version Print version information
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";
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let app_subcmd_decl_order = Command::new("test").version("1").subcommands(vec![
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Command::new("b1")
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.about("blah b1")
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.arg(Arg::new("test").short('t').action(ArgAction::SetTrue)),
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Command::new("a1")
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.about("blah a1")
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.arg(Arg::new("roster").short('r').action(ArgAction::SetTrue)),
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]);
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utils::assert_output(
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app_subcmd_decl_order,
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"test --help",
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SUBCMD_DECL_ORDER,
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false,
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);
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}
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