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clap/tests/help.rs
Donough Liu 0394ae6102
Fix handling of number_of_values when displaying arg (#2701) 
* Remove dead logic

* Outline common logic

* Fix issue 1571
2021-08-17 09:17:18 +00:00

2516 lines
60 KiB
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mod utils;
use clap::{clap_app, App, AppSettings, Arg, ArgGroup, ArgSettings, ErrorKind};
static REQUIRE_DELIM_HELP: &str = "test 1.3
Kevin K.
tests stuff
USAGE:
test --fake <some>:<val>
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-f, --fake <some>:<val> some help";
static HELP: &str = "clap-test v1.4.8
Kevin K. <kbknapp@gmail.com>
tests clap library
USAGE:
clap-test [FLAGS] [OPTIONS] [ARGS] [SUBCOMMAND]
ARGS:
<positional> tests positionals
<positional2> tests positionals with exclusions
<positional3>... tests specific values [possible values: vi, emacs]
FLAGS:
-f, --flag tests flags
-F tests flags with exclusions
-h, --help Print help information
-V, --version Print version information
OPTIONS:
--long-option-2 <option2> tests long options with exclusions
--maxvals3 <maxvals>... Tests 3 max vals
--minvals2 <minvals>... Tests 2 min vals
--multvals <one> <two> Tests multiple values, not mult occs
--multvalsmo <one> <two> Tests multiple values, and mult occs
-o, --option <opt>... tests options
-O, --Option <option3> specific vals [possible values: fast, slow]
SUBCOMMANDS:
help Print this message or the help of the given subcommand(s)
subcmd tests subcommands";
static SC_NEGATES_REQS: &str = "prog 1.0
USAGE:
prog --opt <FILE> [PATH]
prog [PATH] <SUBCOMMAND>
ARGS:
<PATH> help
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --opt <FILE> tests options
SUBCOMMANDS:
help Print this message or the help of the given subcommand(s)
test";
static ARGS_NEGATE_SC: &str = "prog 1.0
USAGE:
prog [FLAGS] [OPTIONS] [PATH]
prog <SUBCOMMAND>
ARGS:
<PATH> help
FLAGS:
-f, --flag testing flags
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --opt <FILE> tests options
SUBCOMMANDS:
help Print this message or the help of the given subcommand(s)
test";
static AFTER_HELP: &str = "some text that comes before the help
clap-test v1.4.8
tests clap library
USAGE:
clap-test
FLAGS:
-h, --help Print help information
-V, --version Print version information
some text that comes after the help";
static AFTER_LONG_HELP: &str = "some longer text that comes before the help
clap-test v1.4.8
tests clap library
USAGE:
clap-test
FLAGS:
-h, --help
Print help information
-V, --version
Print version information
some longer text that comes after the help";
static HIDDEN_ARGS: &str = "prog 1.0
USAGE:
prog [FLAGS] [OPTIONS]
FLAGS:
-f, --flag testing flags
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --opt <FILE> tests options";
static SC_HELP: &str = "clap-test-subcmd 0.1
Kevin K. <kbknapp@gmail.com>
tests subcommands
USAGE:
clap-test subcmd [FLAGS] [OPTIONS] [--] [scpositional]
ARGS:
<scpositional> tests positionals
FLAGS:
-f, --flag tests flags
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --option <scoption>... tests options
-s, --subcmdarg <subcmdarg> tests other args";
static ISSUE_1046_HIDDEN_SCS: &str = "prog 1.0
USAGE:
prog [FLAGS] [OPTIONS] [PATH]
ARGS:
<PATH> some
FLAGS:
-f, --flag testing flags
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --opt <FILE> tests options";
// Using number_of_values(1) with multiple_values(true) misaligns help message
static ISSUE_760: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --option <option> tests options
-O, --opt <opt> tests options";
static RIPGREP_USAGE: &str = "ripgrep 0.5
USAGE:
rg [OPTIONS] <pattern> [<path> ...]
rg [OPTIONS] [-e PATTERN | -f FILE ]... [<path> ...]
rg [OPTIONS] --files [<path> ...]
rg [OPTIONS] --type-list
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static MULTI_SC_HELP: &str = "ctest-subcmd-multi 0.1
Kevin K. <kbknapp@gmail.com>
tests subcommands
USAGE:
ctest subcmd multi [FLAGS] [OPTIONS]
FLAGS:
-f, --flag tests flags
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-o, --option <scoption>... tests options";
static ISSUE_626_CUTOFF: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-c, --cafe <FILE> A coffeehouse, coffee shop, or café is an
establishment which primarily serves hot
coffee, related coffee beverages (e.g., café
latte, cappuccino, espresso), tea, and other
hot beverages. Some coffeehouses also serve
cold beverages such as iced coffee and iced
tea. Many cafés also serve some type of food,
such as light snacks, muffins, or pastries.";
static ISSUE_626_PANIC: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-c, --cafe <FILE>
La culture du café est très développée
dans de nombreux pays à climat chaud
d\'Amérique, d\'Afrique et d\'Asie, dans
des plantations qui sont cultivées pour
les marchés d\'exportation. Le café est
souvent une contribution majeure aux
exportations des régions productrices.";
static HIDE_POS_VALS: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-c, --cafe <FILE> A coffeehouse, coffee shop, or café.
-p, --pos <VAL> Some vals [possible values: fast, slow]";
static FINAL_WORD_WRAPPING: &str = "ctest 0.1
USAGE:
ctest
FLAGS:
-h, --help
Print help
information
-V, --version
Print
version
information";
static OLD_NEWLINE_CHARS: &str = "ctest 0.1
USAGE:
ctest [FLAGS]
FLAGS:
-h, --help Print help information
-m Some help with some wrapping
(Defaults to something)
-V, --version Print version information";
static WRAPPING_NEWLINE_CHARS: &str = "ctest 0.1
USAGE:
ctest [mode]
ARGS:
<mode> x, max, maximum 20 characters, contains
symbols.
l, long Copy-friendly, 14
characters, contains symbols.
m, med, medium Copy-friendly, 8
characters, contains symbols.
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static ISSUE_688: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
--filter <filter> Sets the filter, or sampling method, to use for interpolation when resizing the particle
images. The default is Linear (Bilinear). [possible values: Nearest, Linear, Cubic,
Gaussian, Lanczos3]";
static ISSUE_702: &str = "myapp 1.0
foo
bar
USAGE:
myapp [OPTIONS] [--] [ARGS]
ARGS:
<arg1> some option
<arg2>... some option
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-l, --label <label>... a label
-o, --other <other> some other option
-s, --some <some> some option";
static ISSUE_777: &str = "A app with a crazy very long long
long name hahaha 1.0
Some Very Long Name and crazy long
email <email@server.com>
Show how the about text is not
wrapped
USAGE:
ctest
FLAGS:
-h, --help
Print help information
-V, --version
Print version
information";
static ISSUE_1642: &str = "prog
USAGE:
prog [FLAGS]
FLAGS:
--config
The config file used by the myprog must be in JSON format
with only valid keys and may not contain other nonsense
that cannot be read by this program. Obviously I'm going on
and on, so I'll stop now.
-h, --help
Print help information
-V, --version
Print version information";
static HELP_CONFLICT: &str = "conflict
USAGE:
conflict [FLAGS]
FLAGS:
-h
--help Print help information
-V, --version Print version information";
static LAST_ARG: &str = "last 0.1
USAGE:
last <TARGET> [CORPUS] [-- <ARGS>...]
ARGS:
<TARGET> some
<CORPUS> some
<ARGS>... some
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static LAST_ARG_SC: &str = "last 0.1
USAGE:
last <TARGET> [CORPUS] [-- <ARGS>...]
last <SUBCOMMAND>
ARGS:
<TARGET> some
<CORPUS> some
<ARGS>... some
FLAGS:
-h, --help Print help information
-V, --version Print version information
SUBCOMMANDS:
help Print this message or the help of the given subcommand(s)
test some";
static LAST_ARG_REQ: &str = "last 0.1
USAGE:
last <TARGET> [CORPUS] -- <ARGS>...
ARGS:
<TARGET> some
<CORPUS> some
<ARGS>... some
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static LAST_ARG_REQ_SC: &str = "last 0.1
USAGE:
last <TARGET> [CORPUS] -- <ARGS>...
last <SUBCOMMAND>
ARGS:
<TARGET> some
<CORPUS> some
<ARGS>... some
FLAGS:
-h, --help Print help information
-V, --version Print version information
SUBCOMMANDS:
help Print this message or the help of the given subcommand(s)
test some";
static HIDE_DEFAULT_VAL: &str = "default 0.1
USAGE:
default [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
--arg <argument> Pass an argument to the program. [default: default-argument]";
static ESCAPED_DEFAULT_VAL: &str = "default 0.1
USAGE:
default [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
--arg <argument> Pass an argument to the program. [default: \"\\n\"] [possible values: normal, \" \", \"\\n\", \"\\t\",
other]";
static LAST_ARG_USAGE: &str = "flamegraph 0.1
USAGE:
flamegraph [FLAGS] [OPTIONS] [BINFILE] [-- <ARGS>...]
ARGS:
<BINFILE> The path of the binary to be profiled. for a binary.
<ARGS>... Any arguments you wish to pass to the being profiled.
FLAGS:
-h, --help Print help information
-v, --verbose Prints out more stuff.
-V, --version Print version information
OPTIONS:
-f, --frequency <HERTZ> The sampling frequency.
-t, --timeout <SECONDS> Timeout in seconds.";
static LAST_ARG_REQ_MULT: &str = "example 1.0
USAGE:
example <FIRST>... [--] <SECOND>...
ARGS:
<FIRST>... First
<SECOND>... Second
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static DEFAULT_HELP: &str = "ctest 1.0
USAGE:
ctest
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static LONG_ABOUT: &str = "myapp 1.0
foo
something really really long, with
multiple lines of text
that should be displayed
USAGE:
myapp [arg1]
ARGS:
<arg1>
some option
FLAGS:
-h, --help
Print help information
-V, --version
Print version information";
static CUSTOM_HELP_SECTION: &str = "blorp 1.4
Will M.
does stuff
USAGE:
test --fake <some>:<val>
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-f, --fake <some>:<val> some help
NETWORKING:
-n, --no-proxy Do not use system proxy settings";
static ISSUE_1487: &str = "test
USAGE:
ctest <arg1|arg2>
ARGS:
<arg1>
<arg2>
FLAGS:
-h, --help Print help information
-V, --version Print version information";
static ISSUE_1364: &str = "demo
USAGE:
demo [FLAGS] [OPTIONS] [FILES]...
ARGS:
<FILES>...
FLAGS:
-f
-h, --help Print help information
-V, --version Print version information";
static OPTION_USAGE_ORDER: &str = "order
USAGE:
order [FLAGS]
FLAGS:
-a
-b
-B
-h, --help Print help information
-s
--select_file
--select_folder
-V, --version Print version information
-x";
static ABOUT_IN_SUBCOMMANDS_LIST: &str = "about-in-subcommands-list
USAGE:
about-in-subcommands-list [SUBCOMMAND]
FLAGS:
-h, --help
Print help information
SUBCOMMANDS:
help
Print this message or the help of the given subcommand(s)
sub
short about sub
";
fn setup() -> App<'static> {
App::new("test")
.author("Kevin K.")
.about("tests stuff")
.version("1.3")
}
fn empty_args() -> impl IntoIterator<Item = String> {
std::iter::empty()
}
#[test]
fn help_short() {
let m = setup().try_get_matches_from(vec!["myprog", "-h"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn help_long() {
let m = setup().try_get_matches_from(vec!["myprog", "--help"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn help_no_subcommand() {
let m = setup().try_get_matches_from(vec!["myprog", "help"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::UnknownArgument);
}
#[test]
fn help_subcommand() {
let m = setup()
.subcommand(
App::new("test")
.about("tests things")
.arg("-v --verbose 'with verbosity'"),
)
.try_get_matches_from(vec!["myprog", "help"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn req_last_arg_usage() {
let app = clap_app!(example =>
(version: "1.0")
(@arg FIRST: ... * "First")
(@arg SECOND: ... * +last "Second")
);
assert!(utils::compare_output(
app,
"example --help",
LAST_ARG_REQ_MULT,
false
));
}
#[test]
fn args_with_last_usage() {
let app = App::new("flamegraph")
.version("0.1")
.setting(AppSettings::TrailingVarArg)
.arg(
Arg::new("verbose")
.about("Prints out more stuff.")
.short('v')
.long("verbose")
.setting(ArgSettings::MultipleOccurrences),
)
.arg(
Arg::new("timeout")
.about("Timeout in seconds.")
.short('t')
.long("timeout")
.value_name("SECONDS"),
)
.arg(
Arg::new("frequency")
.about("The sampling frequency.")
.short('f')
.long("frequency")
.value_name("HERTZ"),
)
.arg(
Arg::new("binary path")
.about("The path of the binary to be profiled. for a binary.")
.value_name("BINFILE"),
)
.arg(
Arg::new("pass through args")
.about("Any arguments you wish to pass to the being profiled.")
.setting(ArgSettings::TakesValue)
.setting(ArgSettings::MultipleValues)
.setting(ArgSettings::Last)
.value_name("ARGS"),
);
assert!(utils::compare_output(
app,
"flamegraph --help",
LAST_ARG_USAGE,
false
));
}
#[test]
fn subcommand_short_help() {
let m = utils::complex_app().try_get_matches_from(vec!["clap-test", "subcmd", "-h"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn subcommand_long_help() {
let m = utils::complex_app().try_get_matches_from(vec!["clap-test", "subcmd", "--help"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn subcommand_help_rev() {
let m = utils::complex_app().try_get_matches_from(vec!["clap-test", "help", "subcmd"]);
assert!(m.is_err());
assert_eq!(m.unwrap_err().kind, ErrorKind::DisplayHelp);
}
#[test]
fn complex_help_output() {
assert!(utils::compare_output(
utils::complex_app(),
"clap-test --help",
HELP,
false
));
}
#[test]
fn after_and_before_help_output() {
let app = App::new("clap-test")
.version("v1.4.8")
.about("tests clap library")
.before_help("some text that comes before the help")
.after_help("some text that comes after the help");
assert!(utils::compare_output(
app.clone(),
"clap-test -h",
AFTER_HELP,
false
));
assert!(utils::compare_output(
app,
"clap-test --help",
AFTER_HELP,
false
));
}
#[test]
fn after_and_before_long_help_output() {
let app = App::new("clap-test")
.version("v1.4.8")
.about("tests clap library")
.before_help("some text that comes before the help")
.after_help("some text that comes after the help")
.before_long_help("some longer text that comes before the help")
.after_long_help("some longer text that comes after the help");
assert!(utils::compare_output(
app.clone(),
"clap-test --help",
AFTER_LONG_HELP,
false
));
assert!(utils::compare_output(
app,
"clap-test -h",
AFTER_HELP,
false
));
}
#[test]
fn multi_level_sc_help() {
let app = App::new("ctest").subcommand(
App::new("subcmd").subcommand(
App::new("multi")
.about("tests subcommands")
.author("Kevin K. <kbknapp@gmail.com>")
.version("0.1")
.arg("-f, --flag 'tests flags'")
.arg("-o, --option [scoption]... 'tests options'"),
),
);
assert!(utils::compare_output(
app,
"ctest help subcmd multi",
MULTI_SC_HELP,
false
));
}
#[test]
fn no_wrap_help() {
let app = App::new("ctest").term_width(0).override_help(MULTI_SC_HELP);
assert!(utils::compare_output(
app,
"ctest --help",
MULTI_SC_HELP,
false
));
}
#[test]
fn no_wrap_default_help() {
let app = App::new("ctest").version("1.0").term_width(0);
assert!(utils::compare_output(
app,
"ctest --help",
DEFAULT_HELP,
false
));
}
#[test]
#[cfg(feature = "wrap_help")]
fn wrapped_help() {
static WRAPPED_HELP: &str = "test
USAGE:
test [FLAGS]
FLAGS:
-a, --all
Also do versioning for private crates (will not be
published)
--exact
Specify inter dependency version numbers exactly with
`=`
-h, --help
Print help information
--no-git-commit
Do not commit version changes
--no-git-push
Do not push generated commit and tags to git remote
-V, --version
Print version information";
let app = App::new("test")
.term_width(67)
.arg(
Arg::new("all")
.short('a')
.long("all")
.about("Also do versioning for private crates (will not be published)"),
)
.arg(
Arg::new("exact")
.long("exact")
.about("Specify inter dependency version numbers exactly with `=`"),
)
.arg(
Arg::new("no_git_commit")
.long("no-git-commit")
.about("Do not commit version changes"),
)
.arg(
Arg::new("no_git_push")
.long("no-git-push")
.about("Do not push generated commit and tags to git remote"),
);
assert!(utils::compare_output(
app,
"test --help",
WRAPPED_HELP,
false
));
}
#[test]
#[cfg(feature = "wrap_help")]
fn unwrapped_help() {
static UNWRAPPED_HELP: &str = "test
USAGE:
test [FLAGS]
FLAGS:
-a, --all Also do versioning for private crates
(will not be published)
--exact Specify inter dependency version numbers
exactly with `=`
-h, --help Print help information
--no-git-commit Do not commit version changes
--no-git-push Do not push generated commit and tags to
git remote
-V, --version Print version information";
let app = App::new("test")
.term_width(68)
.arg(
Arg::new("all")
.short('a')
.long("all")
.about("Also do versioning for private crates (will not be published)"),
)
.arg(
Arg::new("exact")
.long("exact")
.about("Specify inter dependency version numbers exactly with `=`"),
)
.arg(
Arg::new("no_git_commit")
.long("no-git-commit")
.about("Do not commit version changes"),
)
.arg(
Arg::new("no_git_push")
.long("no-git-push")
.about("Do not push generated commit and tags to git remote"),
);
assert!(utils::compare_output(
app,
"test --help",
UNWRAPPED_HELP,
false
));
}
#[test]
fn complex_subcommand_help_output() {
let a = utils::complex_app();
assert!(utils::compare_output(
a,
"clap-test subcmd --help",
SC_HELP,
false
));
}
#[test]
fn issue_626_unicode_cutoff() {
let app = App::new("ctest").version("0.1").term_width(70).arg(
Arg::new("cafe")
.short('c')
.long("cafe")
.value_name("FILE")
.about(
"A coffeehouse, coffee shop, or café is an establishment \
which primarily serves hot coffee, related coffee beverages \
(e.g., café latte, cappuccino, espresso), tea, and other hot \
beverages. Some coffeehouses also serve cold beverages such as \
iced coffee and iced tea. Many cafés also serve some type of \
food, such as light snacks, muffins, or pastries.",
)
.takes_value(true),
);
assert!(utils::compare_output(
app,
"ctest --help",
ISSUE_626_CUTOFF,
false
));
}
#[test]
fn hide_possible_vals() {
let app = App::new("ctest")
.version("0.1")
.arg(
Arg::new("pos")
.short('p')
.long("pos")
.value_name("VAL")
.possible_values(&["fast", "slow"])
.about("Some vals")
.takes_value(true),
)
.arg(
Arg::new("cafe")
.short('c')
.long("cafe")
.value_name("FILE")
.hide_possible_values(true)
.possible_values(&["fast", "slow"])
.about("A coffeehouse, coffee shop, or café.")
.takes_value(true),
);
assert!(utils::compare_output(
app,
"ctest --help",
HIDE_POS_VALS,
false
));
}
#[test]
fn issue_626_panic() {
let app = App::new("ctest")
.version("0.1")
.term_width(52)
.arg(Arg::new("cafe")
.short('c')
.long("cafe")
.value_name("FILE")
.about("La culture du café est très développée dans de nombreux pays à climat chaud d'Amérique, \
d'Afrique et d'Asie, dans des plantations qui sont cultivées pour les marchés d'exportation. \
Le café est souvent une contribution majeure aux exportations des régions productrices.")
.takes_value(true));
assert!(utils::compare_output(
app,
"ctest --help",
ISSUE_626_PANIC,
false
));
}
#[test]
fn issue_626_variable_panic() {
for i in 10..320 {
let _ = App::new("ctest")
.version("0.1")
.term_width(i)
.arg(Arg::new("cafe")
.short('c')
.long("cafe")
.value_name("FILE")
.about("La culture du café est très développée dans de nombreux pays à climat chaud d'Amérique, \
d'Afrique et d'Asie, dans des plantations qui sont cultivées pour les marchés d'exportation. \
Le café est souvent une contribution majeure aux exportations des régions productrices.")
.takes_value(true))
.try_get_matches_from(vec!["ctest", "--help"]);
}
}
#[test]
fn final_word_wrapping() {
let app = App::new("ctest").version("0.1").term_width(24);
assert!(utils::compare_output(
app,
"ctest --help",
FINAL_WORD_WRAPPING,
false
));
}
#[test]
fn wrapping_newline_chars() {
let app = App::new("ctest")
.version("0.1")
.term_width(60)
.arg(Arg::new("mode").about(
"x, max, maximum 20 characters, contains symbols.\n\
l, long Copy-friendly, 14 characters, contains symbols.\n\
m, med, medium Copy-friendly, 8 characters, contains symbols.\n",
));
assert!(utils::compare_output(
app,
"ctest --help",
WRAPPING_NEWLINE_CHARS,
false
));
}
#[test]
fn old_newline_chars() {
let app = App::new("ctest").version("0.1").arg(
Arg::new("mode")
.short('m')
.about("Some help with some wrapping\n(Defaults to something)"),
);
assert!(utils::compare_output(
app,
"ctest --help",
OLD_NEWLINE_CHARS,
false
));
}
#[test]
fn issue_688_hidden_pos_vals() {
let filter_values = ["Nearest", "Linear", "Cubic", "Gaussian", "Lanczos3"];
let app1 = App::new("ctest")
.version("0.1")
.term_width(120)
.setting(AppSettings::HidePossibleValuesInHelp)
.arg(Arg::new("filter")
.about("Sets the filter, or sampling method, to use for interpolation when resizing the particle \
images. The default is Linear (Bilinear). [possible values: Nearest, Linear, Cubic, Gaussian, Lanczos3]")
.long("filter")
.possible_values(&filter_values)
.takes_value(true));
assert!(utils::compare_output(
app1,
"ctest --help",
ISSUE_688,
false
));
let app2 = App::new("ctest")
.version("0.1")
.term_width(120)
.arg(Arg::new("filter")
.about("Sets the filter, or sampling method, to use for interpolation when resizing the particle \
images. The default is Linear (Bilinear).")
.long("filter")
.possible_values(&filter_values)
.takes_value(true));
assert!(utils::compare_output(
app2,
"ctest --help",
ISSUE_688,
false
));
let app3 = App::new("ctest")
.version("0.1")
.term_width(120)
.arg(Arg::new("filter")
.about("Sets the filter, or sampling method, to use for interpolation when resizing the particle \
images. The default is Linear (Bilinear). [possible values: Nearest, Linear, Cubic, Gaussian, Lanczos3]")
.long("filter")
.takes_value(true));
assert!(utils::compare_output(
app3,
"ctest --help",
ISSUE_688,
false
));
}
#[test]
fn issue_702_multiple_values() {
let app = App::new("myapp")
.version("1.0")
.author("foo")
.about("bar")
.arg(Arg::new("arg1").about("some option"))
.arg(
Arg::new("arg2")
.takes_value(true)
.multiple_values(true)
.about("some option"),
)
.arg(
Arg::new("some")
.about("some option")
.short('s')
.long("some")
.takes_value(true),
)
.arg(
Arg::new("other")
.about("some other option")
.short('o')
.long("other")
.takes_value(true),
)
.arg(
Arg::new("label")
.about("a label")
.short('l')
.long("label")
.multiple_values(true)
.takes_value(true),
);
assert!(utils::compare_output(app, "myapp --help", ISSUE_702, false));
}
#[test]
fn long_about() {
let app = App::new("myapp")
.version("1.0")
.author("foo")
.about("bar")
.long_about(
"something really really long, with\nmultiple lines of text\nthat should be displayed",
)
.arg(Arg::new("arg1").about("some option"));
assert!(utils::compare_output(
app,
"myapp --help",
LONG_ABOUT,
false
));
}
#[test]
fn issue_760() {
let app = App::new("ctest")
.version("0.1")
.arg(
Arg::new("option")
.about("tests options")
.short('o')
.long("option")
.takes_value(true)
.multiple_values(true)
.number_of_values(1),
)
.arg(
Arg::new("opt")
.about("tests options")
.short('O')
.long("opt")
.takes_value(true),
);
assert!(utils::compare_output(app, "ctest --help", ISSUE_760, false));
}
#[test]
fn issue_1571() {
let app = App::new("hello").arg(
Arg::new("name")
.long("package")
.short('p')
.number_of_values(1)
.takes_value(true)
.multiple_values(true),
);
assert!(utils::compare_output(
app,
"hello --help",
"hello
USAGE:
hello [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-p, --package <name> ",
false
));
}
#[test]
fn ripgrep_usage() {
let app = App::new("ripgrep").version("0.5").override_usage(
"rg [OPTIONS] <pattern> [<path> ...]
rg [OPTIONS] [-e PATTERN | -f FILE ]... [<path> ...]
rg [OPTIONS] --files [<path> ...]
rg [OPTIONS] --type-list",
);
assert!(utils::compare_output(
app,
"rg --help",
RIPGREP_USAGE,
false
));
}
#[test]
fn ripgrep_usage_using_templates() {
let app = App::new("ripgrep")
.version("0.5")
.override_usage(
"
rg [OPTIONS] <pattern> [<path> ...]
rg [OPTIONS] [-e PATTERN | -f FILE ]... [<path> ...]
rg [OPTIONS] --files [<path> ...]
rg [OPTIONS] --type-list",
)
.help_template(
"\
{bin} {version}
USAGE:{usage}
FLAGS:
{flags}",
);
assert!(utils::compare_output(
app,
"rg --help",
RIPGREP_USAGE,
false
));
}
#[test]
fn sc_negates_reqs() {
let app = App::new("prog")
.version("1.0")
.setting(AppSettings::SubcommandsNegateReqs)
.arg("-o, --opt <FILE> 'tests options'")
.arg(Arg::new("PATH").about("help"))
.subcommand(App::new("test"));
assert!(utils::compare_output(
app,
"prog --help",
SC_NEGATES_REQS,
false
));
}
#[test]
fn hidden_args() {
let app = App::new("prog")
.version("1.0")
.arg("-f, --flag 'testing flags'")
.arg("-o, --opt [FILE] 'tests options'")
.arg(Arg::new("pos").hidden(true));
assert!(utils::compare_output(
app,
"prog --help",
HIDDEN_ARGS,
false
));
}
#[test]
fn args_negate_sc() {
let app = App::new("prog")
.version("1.0")
.setting(AppSettings::ArgsNegateSubcommands)
.arg("-f, --flag 'testing flags'")
.arg("-o, --opt [FILE] 'tests options'")
.arg(Arg::new("PATH").about("help"))
.subcommand(App::new("test"));
assert!(utils::compare_output(
app,
"prog --help",
ARGS_NEGATE_SC,
false
));
}
#[test]
fn issue_1046_hidden_scs() {
let app = App::new("prog")
.version("1.0")
.arg("-f, --flag 'testing flags'")
.arg("-o, --opt [FILE] 'tests options'")
.arg(Arg::new("PATH").about("some"))
.subcommand(App::new("test").setting(AppSettings::Hidden));
assert!(utils::compare_output(
app,
"prog --help",
ISSUE_1046_HIDDEN_SCS,
false
));
}
#[test]
fn issue_777_wrap_all_things() {
let app = App::new("A app with a crazy very long long long name hahaha")
.version("1.0")
.author("Some Very Long Name and crazy long email <email@server.com>")
.about("Show how the about text is not wrapped")
.term_width(35);
assert!(utils::compare_output(app, "ctest --help", ISSUE_777, false));
}
static OVERRIDE_HELP_SHORT: &str = "test 0.1
USAGE:
test
FLAGS:
-H, --help Print help information
-V, --version Print version information";
#[test]
fn override_help_short() {
let app = App::new("test")
.version("0.1")
.mut_arg("help", |h| h.short('H'));
assert!(utils::compare_output(
app.clone(),
"test --help",
OVERRIDE_HELP_SHORT,
false
));
assert!(utils::compare_output(
app,
"test -H",
OVERRIDE_HELP_SHORT,
false
));
}
static OVERRIDE_HELP_LONG: &str = "test 0.1
USAGE:
test [FLAGS]
FLAGS:
-h, --hell Print help information
-V, --version Print version information";
#[test]
fn override_help_long() {
let app = App::new("test")
.version("0.1")
.mut_arg("help", |h| h.long("hell"));
assert!(utils::compare_output(
app.clone(),
"test --hell",
OVERRIDE_HELP_LONG,
false
));
assert!(utils::compare_output(
app,
"test -h",
OVERRIDE_HELP_LONG,
false
));
}
static OVERRIDE_HELP_ABOUT: &str = "test 0.1
USAGE:
test
FLAGS:
-h, --help Print help information
-V, --version Print version information";
#[test]
fn override_help_about() {
let app = App::new("test")
.version("0.1")
.mut_arg("help", |h| h.about("Print help information"));
assert!(utils::compare_output(
app.clone(),
"test --help",
OVERRIDE_HELP_ABOUT,
false
));
assert!(utils::compare_output(
app,
"test -h",
OVERRIDE_HELP_ABOUT,
false
));
}
#[test]
fn arg_short_conflict_with_help() {
let app = App::new("conflict").arg(Arg::new("home").short('h'));
assert!(utils::compare_output(
app,
"conflict --help",
HELP_CONFLICT,
false
));
}
#[cfg(debug_assertions)]
#[test]
#[should_panic = "Short option names must be unique for each argument, but '-h' is in use by both 'home' and 'help'"]
fn arg_short_conflict_with_help_mut_arg() {
let _ = App::new("conflict")
.arg(Arg::new("home").short('h'))
.mut_arg("help", |h| h.short('h'))
.try_get_matches_from(vec![""]);
}
#[test]
fn last_arg_mult_usage() {
let app = App::new("last")
.version("0.1")
.arg(Arg::new("TARGET").required(true).about("some"))
.arg(Arg::new("CORPUS").about("some"))
.arg(
Arg::new("ARGS")
.takes_value(true)
.multiple_values(true)
.last(true)
.about("some"),
);
assert!(utils::compare_output(app, "last --help", LAST_ARG, false));
}
#[test]
fn last_arg_mult_usage_req() {
let app = App::new("last")
.version("0.1")
.arg(Arg::new("TARGET").required(true).about("some"))
.arg(Arg::new("CORPUS").about("some"))
.arg(
Arg::new("ARGS")
.takes_value(true)
.multiple_values(true)
.last(true)
.required(true)
.about("some"),
);
assert!(utils::compare_output(
app,
"last --help",
LAST_ARG_REQ,
false
));
}
#[test]
fn last_arg_mult_usage_req_with_sc() {
let app = App::new("last")
.version("0.1")
.setting(AppSettings::SubcommandsNegateReqs)
.arg(Arg::new("TARGET").required(true).about("some"))
.arg(Arg::new("CORPUS").about("some"))
.arg(
Arg::new("ARGS")
.takes_value(true)
.multiple_values(true)
.last(true)
.required(true)
.about("some"),
)
.subcommand(App::new("test").about("some"));
assert!(utils::compare_output(
app,
"last --help",
LAST_ARG_REQ_SC,
false
));
}
#[test]
fn last_arg_mult_usage_with_sc() {
let app = App::new("last")
.version("0.1")
.setting(AppSettings::ArgsNegateSubcommands)
.arg(Arg::new("TARGET").required(true).about("some"))
.arg(Arg::new("CORPUS").about("some"))
.arg(
Arg::new("ARGS")
.takes_value(true)
.multiple_values(true)
.last(true)
.about("some"),
)
.subcommand(App::new("test").about("some"));
assert!(utils::compare_output(
app,
"last --help",
LAST_ARG_SC,
false
));
}
#[test]
fn hidden_default_val() {
let app1 = App::new("default").version("0.1").term_width(120).arg(
Arg::new("argument")
.about("Pass an argument to the program. [default: default-argument]")
.long("arg")
.default_value("default-argument")
.hide_default_value(true),
);
assert!(utils::compare_output(
app1,
"default --help",
HIDE_DEFAULT_VAL,
false
));
let app2 = App::new("default").version("0.1").term_width(120).arg(
Arg::new("argument")
.about("Pass an argument to the program.")
.long("arg")
.default_value("default-argument"),
);
assert!(utils::compare_output(
app2,
"default --help",
HIDE_DEFAULT_VAL,
false
));
}
#[test]
fn escaped_whitespace_values() {
let app1 = App::new("default").version("0.1").term_width(120).arg(
Arg::new("argument")
.about("Pass an argument to the program.")
.long("arg")
.default_value("\n")
.possible_values(&["normal", " ", "\n", "\t", "other"]),
);
assert!(utils::compare_output(
app1,
"default --help",
ESCAPED_DEFAULT_VAL,
false
));
}
fn issue_1112_setup() -> App<'static> {
App::new("test")
.version("1.3")
.arg(Arg::new("help1").long("help").short('h').about("some help"))
.subcommand(
App::new("foo").arg(Arg::new("help1").long("help").short('h').about("some help")),
)
}
#[test]
fn prefer_user_help_long_1112() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "--help"]);
assert!(m.is_ok());
assert!(m.unwrap().is_present("help1"));
}
#[test]
fn prefer_user_help_short_1112() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "-h"]);
assert!(m.is_ok());
assert!(m.unwrap().is_present("help1"));
}
#[test]
fn prefer_user_subcmd_help_long_1112() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "foo", "--help"]);
assert!(m.is_ok());
assert!(m
.unwrap()
.subcommand_matches("foo")
.unwrap()
.is_present("help1"));
}
#[test]
fn prefer_user_subcmd_help_short_1112() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "foo", "-h"]);
assert!(m.is_ok());
assert!(m
.unwrap()
.subcommand_matches("foo")
.unwrap()
.is_present("help1"));
}
#[test]
fn issue_1052_require_delim_help() {
let app = App::new("test")
.author("Kevin K.")
.about("tests stuff")
.version("1.3")
.arg(
Arg::from("-f, --fake <some> <val> 'some help'")
.takes_value(true)
.use_delimiter(true)
.require_delimiter(true)
.value_delimiter(':'),
);
assert!(utils::compare_output(
app,
"test --help",
REQUIRE_DELIM_HELP,
false
));
}
#[test]
fn custom_headers_headers() {
let app = App::new("blorp")
.author("Will M.")
.about("does stuff")
.version("1.4")
.arg(
Arg::from("-f, --fake <some> <val> 'some help'")
.takes_value(true)
.use_delimiter(true)
.require_delimiter(true)
.value_delimiter(':'),
)
.help_heading("NETWORKING")
.arg(
Arg::new("no-proxy")
.short('n')
.long("no-proxy")
.about("Do not use system proxy settings"),
);
assert!(utils::compare_output(
app,
"test --help",
CUSTOM_HELP_SECTION,
false
));
}
static MULTIPLE_CUSTOM_HELP_SECTIONS: &str = "blorp 1.4
Will M.
does stuff
USAGE:
test [OPTIONS] --fake <some>:<val> --birthday-song <song> --birthday-song-volume <volume>
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
-f, --fake <some>:<val> some help
-s, --speed <SPEED> How fast? [possible values: fast, slow]
NETWORKING:
-a, --server-addr Set server address
-n, --no-proxy Do not use system proxy settings
SPECIAL:
-b, --birthday-song <song> Change which song is played for birthdays
-v, --birthday-song-volume <volume> Change the volume of the birthday song";
#[test]
fn multiple_custom_help_headers() {
let app = App::new("blorp")
.author("Will M.")
.about("does stuff")
.version("1.4")
.arg(
Arg::from("-f, --fake <some> <val> 'some help'")
.takes_value(true)
.use_delimiter(true)
.require_delimiter(true)
.value_delimiter(':'),
)
.help_heading("NETWORKING")
.arg(
Arg::new("no-proxy")
.short('n')
.long("no-proxy")
.about("Do not use system proxy settings"),
)
.help_heading("SPECIAL")
.arg(
Arg::from("-b, --birthday-song <song> 'Change which song is played for birthdays'")
.help_heading(Some("IGNORE THIS")),
)
.stop_custom_headings()
.arg(
Arg::from(
"-v --birthday-song-volume <volume> 'Change the volume of the birthday song'",
)
.help_heading(Some("SPECIAL")),
)
.arg(
Arg::new("server-addr")
.short('a')
.long("server-addr")
.about("Set server address")
.help_heading(Some("NETWORKING")),
)
.arg(
Arg::new("speed")
.long("speed")
.short('s')
.value_name("SPEED")
.possible_values(&["fast", "slow"])
.about("How fast?")
.takes_value(true),
);
assert!(utils::compare_output(
app,
"test --help",
MULTIPLE_CUSTOM_HELP_SECTIONS,
false
));
}
static CUSTOM_HELP_SECTION_HIDDEN_ARGS: &str = "blorp 1.4
Will M.
does stuff
USAGE:
test --song <song> --song-volume <volume>
FLAGS:
-h, --help Print help information
-V, --version Print version information
SPECIAL:
-b, --song <song> Change which song is played for birthdays
-v, --song-volume <volume> Change the volume of the birthday song";
#[test]
fn custom_help_headers_hidden_args() {
let app = App::new("blorp")
.author("Will M.")
.about("does stuff")
.version("1.4")
.help_heading("NETWORKING")
.arg(
Arg::new("no-proxy")
.short('n')
.long("no-proxy")
.about("Do not use system proxy settings")
.hidden_short_help(true),
)
.help_heading("SPECIAL")
.arg(
Arg::from("-b, --song <song> 'Change which song is played for birthdays'")
.help_heading(Some("IGNORE THIS")),
)
.stop_custom_headings()
.arg(
Arg::from("-v --song-volume <volume> 'Change the volume of the birthday song'")
.help_heading(Some("SPECIAL")),
)
.arg(
Arg::new("server-addr")
.short('a')
.long("server-addr")
.about("Set server address")
.help_heading(Some("NETWORKING"))
.hidden_short_help(true),
);
assert!(utils::compare_output(
app,
"test -h",
CUSTOM_HELP_SECTION_HIDDEN_ARGS,
false
));
}
static ISSUE_897: &str = "ctest-foo 0.1
Long about foo
USAGE:
ctest foo
FLAGS:
-h, --help
Print help information
-V, --version
Print version information";
#[test]
fn show_long_about_issue_897() {
let app = App::new("ctest").version("0.1").subcommand(
App::new("foo")
.version("0.1")
.about("About foo")
.long_about("Long about foo"),
);
assert!(utils::compare_output(
app,
"ctest foo --help",
ISSUE_897,
false
));
}
static ISSUE_897_SHORT: &str = "ctest-foo 0.1
About foo
USAGE:
ctest foo
FLAGS:
-h, --help Print help information
-V, --version Print version information";
#[test]
fn show_short_about_issue_897() {
let app = App::new("ctest").version("0.1").subcommand(
App::new("foo")
.version("0.1")
.about("About foo")
.long_about("Long about foo"),
);
assert!(utils::compare_output(
app,
"ctest foo -h",
ISSUE_897_SHORT,
false
));
}
#[test]
fn issue_1364_no_short_options() {
let app = App::new("demo")
.arg(Arg::new("foo").short('f'))
.arg(
Arg::new("baz")
.short('z')
.value_name("BAZ")
.hidden_short_help(true),
)
.arg(
Arg::new("files")
.value_name("FILES")
.takes_value(true)
.multiple_values(true),
);
assert!(utils::compare_output(app, "demo -h", ISSUE_1364, false));
}
#[rustfmt::skip]
#[test]
fn issue_1487() {
let app = App::new("test")
.arg(Arg::new("arg1")
.group("group1"))
.arg(Arg::new("arg2")
.group("group1"))
.group(ArgGroup::new("group1")
.args(&["arg1", "arg2"])
.required(true));
assert!(utils::compare_output(app, "ctest -h", ISSUE_1487, false));
}
#[cfg(debug_assertions)]
#[test]
#[should_panic = "AppSettings::HelpRequired is enabled for the App"]
fn help_required_but_not_given() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo"))
.get_matches_from(empty_args());
}
#[cfg(debug_assertions)]
#[test]
#[should_panic = "AppSettings::HelpRequired is enabled for the App"]
fn help_required_but_not_given_settings_after_args() {
App::new("myapp")
.arg(Arg::new("foo"))
.setting(AppSettings::HelpRequired)
.get_matches_from(empty_args());
}
#[cfg(debug_assertions)]
#[test]
#[should_panic = "AppSettings::HelpRequired is enabled for the App"]
fn help_required_but_not_given_for_one_of_two_arguments() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo"))
.arg(Arg::new("bar").about("It does bar stuff"))
.get_matches_from(empty_args());
}
#[test]
fn help_required_locally_but_not_given_for_subcommand() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo").about("It does foo stuff"))
.subcommand(
App::new("bar")
.arg(Arg::new("create").about("creates bar"))
.arg(Arg::new("delete")),
)
.get_matches_from(empty_args());
}
#[cfg(debug_assertions)]
#[test]
#[should_panic = "AppSettings::HelpRequired is enabled for the App"]
fn help_required_globally_but_not_given_for_subcommand() {
App::new("myapp")
.global_setting(AppSettings::HelpRequired)
.arg(Arg::new("foo").about("It does foo stuff"))
.subcommand(
App::new("bar")
.arg(Arg::new("create").about("creates bar"))
.arg(Arg::new("delete")),
)
.get_matches_from(empty_args());
}
#[test]
fn help_required_and_given_for_subcommand() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo").about("It does foo stuff"))
.subcommand(
App::new("bar")
.arg(Arg::new("create").about("creates bar"))
.arg(Arg::new("delete").about("deletes bar")),
)
.get_matches_from(empty_args());
}
#[test]
fn help_required_and_given() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo").about("It does foo stuff"))
.get_matches_from(empty_args());
}
#[test]
fn help_required_and_no_args() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.get_matches_from(empty_args());
}
#[test]
fn issue_1642_long_help_spacing() {
let app = App::new("prog").arg(Arg::new("cfg").long("config").long_about(
"The config file used by the myprog must be in JSON format
with only valid keys and may not contain other nonsense
that cannot be read by this program. Obviously I'm going on
and on, so I'll stop now.",
));
assert!(utils::compare_output(app, "prog --help", ISSUE_1642, false));
}
const AFTER_HELP_NO_ARGS: &str = "myapp 1.0
USAGE:
myapp
This is after help.
";
#[test]
fn after_help_no_args() {
let mut app = App::new("myapp")
.version("1.0")
.setting(AppSettings::DisableHelpFlag)
.setting(AppSettings::DisableVersionFlag)
.after_help("This is after help.");
let help = {
let mut output = Vec::new();
app.write_help(&mut output).unwrap();
String::from_utf8(output).unwrap()
};
assert_eq!(help, AFTER_HELP_NO_ARGS);
}
static HELP_ABOUT_MULTI_SC: &str = "myapp-subcmd-multi 1.0
USAGE:
myapp subcmd multi
FLAGS:
-h, --help Print custom help about text
-V, --version Print version information";
static HELP_ABOUT_MULTI_SC_OVERRIDE: &str = "myapp-subcmd-multi 1.0
USAGE:
myapp subcmd multi
FLAGS:
-h, --help Print custom help about text from multi
-V, --version Print version information";
#[test]
fn help_about_multi_subcmd() {
let app = App::new("myapp")
.mut_arg("help", |h| h.about("Print custom help about text"))
.subcommand(App::new("subcmd").subcommand(App::new("multi").version("1.0")));
assert!(utils::compare_output(
app.clone(),
"myapp help subcmd multi",
HELP_ABOUT_MULTI_SC,
false
));
assert!(utils::compare_output(
app.clone(),
"myapp subcmd multi -h",
HELP_ABOUT_MULTI_SC,
false
));
assert!(utils::compare_output(
app,
"myapp subcmd multi --help",
HELP_ABOUT_MULTI_SC,
false
));
}
#[test]
fn help_about_multi_subcmd_override() {
let app = App::new("myapp")
.mut_arg("help", |h| h.about("Print custom help about text"))
.subcommand(App::new("subcmd").subcommand(
App::new("multi").version("1.0").mut_arg("help", |h| {
h.about("Print custom help about text from multi")
}),
));
assert!(utils::compare_output(
app.clone(),
"myapp help subcmd multi",
HELP_ABOUT_MULTI_SC_OVERRIDE,
false
));
assert!(utils::compare_output(
app.clone(),
"myapp subcmd multi -h",
HELP_ABOUT_MULTI_SC_OVERRIDE,
false
));
assert!(utils::compare_output(
app,
"myapp subcmd multi --help",
HELP_ABOUT_MULTI_SC_OVERRIDE,
false
));
}
#[test]
fn option_usage_order() {
let app = App::new("order").args(&[
Arg::new("a").short('a'),
Arg::new("B").short('B'),
Arg::new("b").short('b'),
Arg::new("save").short('s'),
Arg::new("select_file").long("select_file"),
Arg::new("select_folder").long("select_folder"),
Arg::new("x").short('x'),
]);
assert!(utils::compare_output(
app,
"order --help",
OPTION_USAGE_ORDER,
false
));
}
#[test]
fn about_in_subcommands_list() {
let app = App::new("about-in-subcommands-list")
.setting(AppSettings::ColorNever)
.global_setting(AppSettings::DisableVersionFlag)
.subcommand(
App::new("sub")
.long_about("long about sub")
.about("short about sub"),
);
assert!(utils::compare_output(
app,
"about-in-subcommands-list --help",
ABOUT_IN_SUBCOMMANDS_LIST,
false
));
}
#[test]
fn issue_1794_usage() {
static USAGE_WITH_GROUP: &str = "hello
USAGE:
deno <pos1|--option1> [pos2]
ARGS:
<pos1>
<pos2>
FLAGS:
-h, --help Print help information
--option1
-V, --version Print version information";
let app = clap::App::new("hello")
.bin_name("deno")
.arg(Arg::new("option1").long("option1").takes_value(false))
.arg(Arg::new("pos1").takes_value(true))
.group(
ArgGroup::new("arg1")
.args(&["pos1", "option1"])
.required(true),
)
.arg(Arg::new("pos2").takes_value(true));
assert!(utils::compare_output(
app,
"deno --help",
USAGE_WITH_GROUP,
false
));
}
static ONLY_CUSTOM_HEADING_FLAGS: &str = "test 1.4
USAGE:
test [OPTIONS]
OPTIONS:
--speed <speed> How fast
NETWORKING:
--flag Some flag";
#[test]
fn only_custom_heading_flags() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.mut_arg("help", |a| a.hidden(true))
.arg(
Arg::new("speed")
.long("speed")
.takes_value(true)
.about("How fast"),
)
.help_heading("NETWORKING")
.arg(Arg::new("flag").long("flag").about("Some flag"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_FLAGS,
false
));
}
static ONLY_CUSTOM_HEADING_OPTS: &str = "test 1.4
USAGE:
test
FLAGS:
-h, --help Print help information
NETWORKING:
-s, --speed <SPEED> How fast";
#[test]
fn only_custom_heading_opts() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.help_heading("NETWORKING")
.arg(Arg::from("-s, --speed [SPEED] 'How fast'"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_OPTS,
false
));
}
static CUSTOM_HEADING_POS: &str = "test 1.4
USAGE:
test [ARGS]
ARGS:
<gear> Which gear
FLAGS:
-h, --help Print help information
NETWORKING:
<speed> How fast";
#[test]
fn custom_heading_pos() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.arg(Arg::new("gear").about("Which gear"))
.help_heading("NETWORKING")
.arg(Arg::new("speed").about("How fast"));
assert!(utils::compare_output(
app,
"test --help",
CUSTOM_HEADING_POS,
false
));
}
static ONLY_CUSTOM_HEADING_POS: &str = "test 1.4
USAGE:
test [speed]
FLAGS:
-h, --help Print help information
NETWORKING:
<speed> How fast";
#[test]
fn only_custom_heading_pos() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.help_heading("NETWORKING")
.arg(Arg::new("speed").about("How fast"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_POS,
false
));
}
static ONLY_CUSTOM_HEADING_FLAGS_NO_ARGS: &str = "test 1.4
USAGE:
test
NETWORKING:
--flag Some flag";
#[test]
fn only_custom_heading_flags_no_args() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.mut_arg("help", |a| a.hidden(true))
.help_heading("NETWORKING")
.arg(Arg::new("flag").long("flag").about("Some flag"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_FLAGS_NO_ARGS,
false
));
}
static ONLY_CUSTOM_HEADING_OPTS_NO_ARGS: &str = "test 1.4
USAGE:
test
NETWORKING:
-s, --speed <SPEED> How fast";
#[test]
fn only_custom_heading_opts_no_args() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.mut_arg("help", |a| a.hidden(true))
.help_heading("NETWORKING")
.arg(Arg::from("-s, --speed [SPEED] 'How fast'"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_OPTS_NO_ARGS,
false
));
}
static ONLY_CUSTOM_HEADING_POS_NO_ARGS: &str = "test 1.4
USAGE:
test [speed]
NETWORKING:
<speed> How fast";
#[test]
fn only_custom_heading_pos_no_args() {
let app = App::new("test")
.version("1.4")
.setting(AppSettings::DisableVersionFlag)
.mut_arg("help", |a| a.hidden(true))
.help_heading("NETWORKING")
.arg(Arg::new("speed").about("How fast"));
assert!(utils::compare_output(
app,
"test --help",
ONLY_CUSTOM_HEADING_POS_NO_ARGS,
false
));
}
#[test]
fn issue_2508_number_of_values_with_single_value_name() {
let app = App::new("my_app")
.arg(Arg::new("some_arg").long("some_arg").number_of_values(2))
.arg(
Arg::new("some_arg_issue")
.long("some_arg_issue")
.number_of_values(2)
.value_name("ARG"),
);
assert!(utils::compare_output(
app,
"my_app --help",
"my_app
USAGE:
my_app [OPTIONS]
FLAGS:
-h, --help Print help information
-V, --version Print version information
OPTIONS:
--some_arg <some_arg> <some_arg>
--some_arg_issue <ARG> <ARG> ",
false
));
}
#[test]
fn missing_positional_final_required() {
let app = App::new("test")
.setting(AppSettings::AllowMissingPositional)
.arg(Arg::new("arg1"))
.arg(Arg::new("arg2").required(true));
assert!(utils::compare_output(
app,
"test --help",
"test
USAGE:
test [arg1] <arg2>
ARGS:
<arg1>
<arg2>
FLAGS:
-h, --help Print help information
-V, --version Print version information
",
false
));
}
#[test]
fn missing_positional_final_multiple() {
let app = App::new("test")
.setting(AppSettings::AllowMissingPositional)
.arg(Arg::new("foo"))
.arg(Arg::new("bar"))
.arg(Arg::new("baz").takes_value(true).multiple_values(true));
assert!(utils::compare_output(
app,
"test --help",
"test
USAGE:
test [ARGS]
ARGS:
<foo>
<bar>
<baz>...
FLAGS:
-h, --help Print help information
-V, --version Print version information
",
false
));
}
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