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clap/tests/help.rs
Matt Kantor de6a5af1b2 Add a (failing) test for no args + after help.
2020-08-14 13:58:56 -07:00

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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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
-O, --Option <option3> specific vals [possible values: fast, slow]
--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
SUBCOMMANDS:
help Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
-o, --opt <FILE> tests options
SUBCOMMANDS:
help Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
-o, --opt <FILE> tests options
SUBCOMMANDS:
help Prints 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 Prints help information
-V, --version Prints 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
Prints help information
-V, --version
Prints 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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
-o, --opt <FILE> tests options";
// Using number_of_values(1) with multiple(true) misaligns help message
static ISSUE_760: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-O, --opt <opt> tests options
-o, --option <option>... 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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
-o, --option <scoption>... tests options";
static ISSUE_626_CUTOFF: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints 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
Prints help
information
-V, --version
Prints
version
information";
static OLD_NEWLINE_CHARS: &str = "ctest 0.1
USAGE:
ctest [FLAGS]
FLAGS:
-h, --help Prints help information
-m Some help with some wrapping
(Defaults to something)
-V, --version Prints 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 Prints help information
-V, --version Prints version information";
static ISSUE_688: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints 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
Prints help information
-V, --version
Prints 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
Prints help information
-V, --version
Prints version information";
static CUSTOM_VERSION_AND_HELP: &str = "customize 0.1
Nobody <odysseus@example.com>
You can customize the version and help text
USAGE:
customize
FLAGS:
-H, --help Print help information
-v, --version Print version information";
static HELP_CONFLICT: &str = "conflict
USAGE:
conflict [FLAGS]
FLAGS:
--help Prints help information
-h
-V, --version Prints version information";
static LAST_ARG: &str = "last 0.1
USAGE:
last <TARGET> [CORPUS] [-- <ARGS>...]
ARGS:
<TARGET> some
<CORPUS> some
<ARGS>... some
FLAGS:
-h, --help Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information
SUBCOMMANDS:
help Prints 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 Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information
SUBCOMMANDS:
help Prints 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 Prints help information
-V, --version Prints version information
OPTIONS:
--arg <argument> Pass an argument to the program. [default: default-argument]";
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 Prints help information
-v, --verbose Prints out more stuff.
-V, --version Prints 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 Prints help information
-V, --version Prints version information";
static DEFAULT_HELP: &str = "ctest 1.0
USAGE:
ctest
FLAGS:
-h, --help Prints help information
-V, --version Prints 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
Prints help information
-V, --version
Prints version information";
static HIDE_ENV_VALS: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-c, --cafe <FILE> A coffeehouse, coffee shop, or café. [env: ENVVAR]
-p, --pos <VAL> Some vals [possible values: fast, slow]";
static SHOW_ENV_VALS: &str = "ctest 0.1
USAGE:
ctest [OPTIONS]
FLAGS:
-h, --help Prints help information
-V, --version Prints version information
OPTIONS:
-c, --cafe <FILE> A coffeehouse, coffee shop, or café. [env: ENVVAR=MYVAL]
-p, --pos <VAL> Some vals [possible values: fast, slow]";
static CUSTOM_HELP_SECTION: &str = "blorp 1.4
Will M.
does stuff
USAGE:
test --fake <some>:<val>
FLAGS:
-h, --help Prints help information
-V, --version Prints 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 Prints help information
-V, --version Prints version information";
static ISSUE_1364: &str = "demo
USAGE:
demo [FLAGS] [OPTIONS] [FILES]...
ARGS:
<FILES>...
FLAGS:
-f
-h, --help Prints help information
-V, --version Prints version information";
fn setup() -> App<'static> {
App::new("test")
.author("Kevin K.")
.about("tests stuff")
.version("1.3")
}
#[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.")
.settings(&[
ArgSettings::MultipleValues,
ArgSettings::MultipleOccurrences,
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]
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").multiple(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(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(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 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));
}
#[test]
fn customize_version_and_help() {
let app = App::new("customize")
.version("0.1")
.author("Nobody <odysseus@example.com>")
.about("You can customize the version and help text")
.mut_arg("help", |h| {
h.short('H').long("help").about("Print help information")
})
.mut_arg("version", |v| {
v.short('v')
.long("version")
.about("Print version information")
});
assert!(utils::compare_output(
app,
"customize --help",
CUSTOM_VERSION_AND_HELP,
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").multiple(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")
.multiple(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")
.multiple(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").multiple(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
));
}
fn issue_1112_setup() -> App<'static> {
App::new("test")
.author("Kevin K.")
.about("tests stuff")
.version("1.3")
.global_setting(AppSettings::NoAutoHelp)
.arg(Arg::from("-h, --help 'some help'"))
.subcommand(App::new("foo").arg(Arg::from("-h, --help 'some help'")))
}
#[test]
fn issue_1112_override_help_long() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "--help"]);
assert!(m.is_ok());
assert!(m.unwrap().is_present("help"));
}
#[test]
fn issue_1112_override_help_short() {
let m = issue_1112_setup().try_get_matches_from(vec!["test", "-h"]);
assert!(m.is_ok());
assert!(m.unwrap().is_present("help"));
}
#[test]
fn issue_1112_override_help_subcmd_long() {
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("help"));
}
#[test]
fn issue_1112_override_help_subcmd_short() {
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("help"));
}
#[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'")
.require_delimiter(true)
.value_delimiter(":"),
);
assert!(utils::compare_output(
app,
"test --help",
REQUIRE_DELIM_HELP,
false
));
}
#[test]
fn hide_env_vals() {
use std::env;
env::set_var("ENVVAR", "MYVAL");
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_env_values(true)
.env("ENVVAR")
.about("A coffeehouse, coffee shop, or café.")
.takes_value(true),
);
assert!(utils::compare_output(
app,
"ctest --help",
HIDE_ENV_VALS,
false
));
}
#[test]
fn show_env_vals() {
use std::env;
env::set_var("ENVVAR", "MYVAL");
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)
.env("ENVVAR")
.about("A coffeehouse, coffee shop, or café.")
.takes_value(true),
);
assert!(utils::compare_output(
app,
"ctest --help",
SHOW_ENV_VALS,
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'")
.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 Prints help information
-V, --version Prints version information
OPTIONS:
-f, --fake <some>:<val> some help
-s, --speed <SPEED> How fast? [possible values: fast, slow]
NETWORKING:
-n, --no-proxy Do not use system proxy settings
-a, --server-addr Set server address
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'")
.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 ISSUE_897: &str = "ctest-foo 0.1
Long about foo
USAGE:
ctest foo
FLAGS:
-h, --help
Prints help information
-V, --version
Prints 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 Prints help information
-V, --version Prints 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").multiple(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();
}
#[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();
}
#[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();
}
#[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();
}
#[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();
}
#[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();
}
#[test]
fn help_required_and_given() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.arg(Arg::new("foo").about("It does foo stuff"))
.get_matches();
}
#[test]
fn help_required_and_no_args() {
App::new("myapp")
.setting(AppSettings::HelpRequired)
.get_matches();
}
#[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::DisableHelpFlags)
.setting(AppSettings::DisableVersion)
.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);
}
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