diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7ea38c9e..34b2d596 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,57 @@
+
+
+#### New Settings
+
+* **ArgsNegateSubcommands:** disables args being allowed between subcommands ([5e2af8c9](https://github.com/kbknapp/clap-rs/commit/5e2af8c96adb5ab75fa2d1536237ebcb41869494), closes [#793](https://github.com/kbknapp/clap-rs/issues/793))
+* **DontCollapseArgsInUsage:** disables the collapsing of positional args into `[ARGS]` in the usage string ([c2978afc](https://github.com/kbknapp/clap-rs/commit/c2978afc61fb46d5263ab3b2d87ecde1c9ce1553), closes [#769](https://github.com/kbknapp/clap-rs/issues/769))
+* **DisableHelpSubcommand:** disables building the `help` subcommand ([a10fc859](https://github.com/kbknapp/clap-rs/commit/a10fc859ee20159fbd9ff4337be59b76467a64f2))
+* **AllowMissingPositional:** allows one to implement `$ prog [optional] ` style CLIs where the second postional argument is required, but the first is optional ([1110fdc7](https://github.com/kbknapp/clap-rs/commit/1110fdc7a345c108820dc45783a9bf893fa4c214), closes [#636](https://github.com/kbknapp/clap-rs/issues/636))
+* **PropagateGlobalValuesDown:** automatically propagats global arg's values down through *used* subcommands ([985536c8](https://github.com/kbknapp/clap-rs/commit/985536c8ebcc09af98aac835f42a8072ad58c262), closes [#694](https://github.com/kbknapp/clap-rs/issues/694))
+
+#### API Additions
+
+##### Arg
+
+* **Arg::value_terminator:** adds the ability to terminate multiple values with a given string or char ([be64ce0c](https://github.com/kbknapp/clap-rs/commit/be64ce0c373efc106384baca3f487ea99fe7b8cf), closes [#782](https://github.com/kbknapp/clap-rs/issues/782))
+* **Arg::default_value_if[s]:** adds new methods for *conditional* default values (such as a particular value from another argument was used) ([eb4010e7](https://github.com/kbknapp/clap-rs/commit/eb4010e7b21724447ef837db11ac441915728f22))
+* **Arg::requires_if[s]:** adds the ability to *conditionally* require additional args (such as if a particular value was used) ([198449d6](https://github.com/kbknapp/clap-rs/commit/198449d64393c265f0bc327aaeac23ec4bb97226))
+* **Arg::required_if[s]:** adds the ability for an arg to be *conditionally* required (i.e. "arg X is only required if arg Y was used with value Z") ([ee9cfddf](https://github.com/kbknapp/clap-rs/commit/ee9cfddf345a6b5ae2af42ba72aa5c89e2ca7f59))
+* **Arg::validator_os:** adds ability to validate values which may contain invalid UTF-8 ([47232498](https://github.com/kbknapp/clap-rs/commit/47232498a813db4f3366ccd3e9faf0bff56433a4))
+
+##### Macros
+
+* **crate_description!:** Uses the `Cargo.toml` description field to fill in the `App::about` method at compile time ([4d9a82db](https://github.com/kbknapp/clap-rs/commit/4d9a82db8e875e9b64a9c2a5c6e22c25afc1279d), closes [#778](https://github.com/kbknapp/clap-rs/issues/778))
+* **crate_name!:** Uses the `Cargo.toml` name field to fill in the `App::new` method at compile time ([4d9a82db](https://github.com/kbknapp/clap-rs/commit/4d9a82db8e875e9b64a9c2a5c6e22c25afc1279d), closes [#778](https://github.com/kbknapp/clap-rs/issues/778))
+* **app_from_crate!:** Combines `crate_version!`, `crate_name!`, `crate_description!`, and `crate_authors!` into a single macro call to build a default `App` instance from the `Cargo.toml` fields ([4d9a82db](https://github.com/kbknapp/clap-rs/commit/4d9a82db8e875e9b64a9c2a5c6e22c25afc1279d), closes [#778](https://github.com/kbknapp/clap-rs/issues/778))
+
+
+#### Features
+
+* **no_cargo:** adds a `no_cargo` feature to disable Cargo-env-var-dependent macros for those *not* using `cargo` to build their crates (#786) ([6fdd2f9d](https://github.com/kbknapp/clap-rs/commit/6fdd2f9d693aaf1118fc61bd362273950703f43d))
+
+#### Bug Fixes
+
+* **Options:** fixes a critical bug where options weren't forced to have a value ([5a5f2b1e](https://github.com/kbknapp/clap-rs/commit/5a5f2b1e9f598a0d0280ef3e98abbbba2bc41132), closes [#665](https://github.com/kbknapp/clap-rs/issues/665))
+* fixes a bug where calling the help of a subcommand wasn't ignoring required args of parent commands ([d3d34a2b](https://github.com/kbknapp/clap-rs/commit/d3d34a2b51ef31004055b0ab574f766d801c3adf), closes [#789](https://github.com/kbknapp/clap-rs/issues/789))
+* **Help Subcommand:** fixes a bug where the help subcommand couldn't be overriden ([d34ec3e0](https://github.com/kbknapp/clap-rs/commit/d34ec3e032d03e402d8e87af9b2942fe2819b2da), closes [#787](https://github.com/kbknapp/clap-rs/issues/787))
+* **Low Index Multiples:** fixes a bug which caused combinations of LowIndexMultiples and `Arg::allow_hyphen_values` to fail parsing ([26c670ca](https://github.com/kbknapp/clap-rs/commit/26c670ca16d2c80dc26d5c1ce83380ace6357318))
+
+#### Improvements
+
+* **Default Values:** improves the error message when default values are involved ([1f33de54](https://github.com/kbknapp/clap-rs/commit/1f33de545036e7fd2f80faba251fca009bd519b8), closes [#774](https://github.com/kbknapp/clap-rs/issues/774))
+* **YAML:** adds conditional requirements and conditional default values to YAML ([9a4df327](https://github.com/kbknapp/clap-rs/commit/9a4df327893486adb5558ffefba790c634ccdc6e), closes [#764](https://github.com/kbknapp/clap-rs/issues/764))
+* Support `--("some-arg-name")` syntax for defining long arg names when using `clap_app!` macro ([f41ec962](https://github.com/kbknapp/clap-rs/commit/f41ec962c243a5ffff8b1be1ae2ad63970d3d1d4))
+* Support `("some app name")` syntax for defining app names when using `clap_app!` macro ([9895b671](https://github.com/kbknapp/clap-rs/commit/9895b671cff784f35cf56abcd8270f7c2ba09699), closes [#759](https://github.com/kbknapp/clap-rs/issues/759))
+* **Help Wrapping:** long app names (with spaces), authors, and descriptions are now wrapped appropriately ([ad4691b7](https://github.com/kbknapp/clap-rs/commit/ad4691b71a63e951ace346318238d8834e04ad8a), closes [#777](https://github.com/kbknapp/clap-rs/issues/777))
+
+
+#### Documentation
+
+* **Conditional Default Values:** fixes the failing doc tests of Arg::default_value_ifs ([4ef09101](https://github.com/kbknapp/clap-rs/commit/4ef091019c083b4db1a0c13f1c1e95ac363259f2))
+* **Conditional Requirements:** adds docs for Arg::requires_ifs ([7f296e29](https://github.com/kbknapp/clap-rs/commit/7f296e29db7d9036e76e5dbcc9c8b20dfe7b25bd))
+* **README.md:** fix some typos ([f22c21b4](https://github.com/kbknapp/clap-rs/commit/f22c21b422d5b287d1a1ac183a379ee02eebf54f))
+* **src/app/mod.rs:** fix some typos ([5c9b0d47](https://github.com/kbknapp/clap-rs/commit/5c9b0d47ca78dea285c5b9dec79063d24c3e451a))
+
### v2.19.3 (2016-12-28)
diff --git a/README.md b/README.md
index a80c75a0..21567756 100644
--- a/README.md
+++ b/README.md
@@ -45,12 +45,37 @@ Created by [gh-md-toc](https://github.com/ekalinin/github-markdown-toc)
## What's New
-Here's the highlights for v2.19.3
+Here's the highlights for v2.20.0
+
+* **ArgsNegateSubcommands:** disables args being allowed between subcommands
+* **DontCollapseArgsInUsage:** disables the collapsing of positional args into `[ARGS]` in the usage string
+* **DisableHelpSubcommand:** disables building the `help` subcommand
+* **AllowMissingPositional:** allows one to implement `$ prog [optional] ` style CLIs where the second postional argument is required, but the first is optional
+* **PropagateGlobalValuesDown:** automatically propagats global arg's values down through *used* subcommands
+* **Arg::value_terminator:** adds the ability to terminate multiple values with a given string or char
+* **Arg::default_value_if[s]:** adds new methods for *conditional* default values (such as a particular value from another argument was used)
+* **Arg::requires_if[s]:** adds the ability to *conditionally* require additional args (such as if a particular value was used)
+* **Arg::required_if[s]:** adds the ability for an arg to be *conditionally* required (i.e. "arg X is only required if arg Y was used with value Z")
+* **Arg::validator_os:** adds ability to validate values which may contain invalid UTF-8
+* **crate_description!:** Uses the `Cargo.toml` description field to fill in the `App::about` method at compile time
+* **crate_name!:** Uses the `Cargo.toml` name field to fill in the `App::new` method at compile time
+* **app_from_crate!:** Combines `crate_version!`, `crate_name!`, `crate_description!`, and `crate_authors!` into a single macro call to build a default `App` instance from the `Cargo.toml` fields
+* **no_cargo:** adds a `no_cargo` feature to disable Cargo-env-var-dependent macros for those *not* using `cargo` to build their crates
+* **Options:** fixes a critical bug where options weren't forced to have a value
+* fixes a bug where calling the help of a subcommand wasn't ignoring required args of parent commands
+* **Help Subcommand:** fixes a bug where the help subcommand couldn't be overriden
+* **Low Index Multiples:** fixes a bug which caused combinations of LowIndexMultiples and `Arg::allow_hyphen_values` to fail parsing
+* **Default Values:** improves the error message when default values are involved
+* **YAML:** adds conditional requirements and conditional default values to YAML
+* Support `--("some-arg-name")` syntax for defining long arg names when using `clap_app!` macro
+* Support `("some app name")` syntax for defining app names when using `clap_app!` macro
+* **Help Wrapping:** long app names (with spaces), authors, and descriptions are now wrapped appropriately
+* **Conditional Default Values:** fixes the failing doc tests of Arg::default_value_ifs
+* **Conditional Requirements:** adds docs for Arg::requires_ifs
+
+Here's the highlights from v2.0.0 to v2.19.3
* Fixes a bug where calling the help of a subcommand wasn't ignoring required args of parent commands
-
-Here's the highlights from v2.0.0 to v2.19.2
-
* Fixes a bug by escaping square brackets in ZSH completions which were causing conflicts and errors.
* **Bash Completion:** allows bash completion to fall back to traidtional bash completion upon no matching completing function
* **Arg Setting**: Allows specifying an `AllowLeadingHyphen` style setting for values only for specific args, vice command wide
diff --git a/src/app/mod.rs b/src/app/mod.rs
index a4ac83cd..3c7d1ec7 100644
--- a/src/app/mod.rs
+++ b/src/app/mod.rs
@@ -1028,14 +1028,16 @@ impl<'a, 'b> App<'a, 'b> {
/// app.write_help(&mut out).expect("failed to write to stdout");
/// ```
/// [`io::Write`]: https://doc.rust-lang.org/std/io/trait.Write.html
- pub fn write_help(&mut self, w: &mut W) -> ClapResult<()> {
+ pub fn write_help(&self, w: &mut W) -> ClapResult<()> {
+ // PENDING ISSUE: 808
+ // https://github.com/kbknapp/clap-rs/issues/808
// If there are global arguments, or settings we need to propgate them down to subcommands
// before parsing incase we run into a subcommand
- self.p.propogate_globals();
- self.p.propogate_settings();
- self.p.derive_display_order();
+ // self.p.propogate_globals();
+ // self.p.propogate_settings();
+ // self.p.derive_display_order();
+ // self.p.create_help_and_version();
- self.p.create_help_and_version();
Help::write_app_help(w, self)
}
diff --git a/src/app/parser.rs b/src/app/parser.rs
index b3487817..c14d7a7b 100644
--- a/src/app/parser.rs
+++ b/src/app/parser.rs
@@ -546,10 +546,6 @@ impl<'a, 'b> Parser<'a, 'b>
a.b.settings.is_set(ArgSettings::Multiple) &&
(a.index as usize != self.positionals.len())
}) {
- debug_assert!(self.positionals.values()
- .filter(|p| p.b.settings.is_set(ArgSettings::Multiple)
- && p.v.num_vals.is_none()).map(|_| 1).sum::() <= 1,
- "Only one positional argument with .multiple(true) set is allowed per command");
debug_assert!({
let mut it = self.positionals.values().rev();
@@ -581,17 +577,42 @@ impl<'a, 'b> Parser<'a, 'b>
// If it's required we also need to ensure all previous positionals are
// required too
- let mut found = false;
- for p in self.positionals.values().rev() {
- if found {
- debug_assert!(p.b.settings.is_set(ArgSettings::Required),
- "Found positional argument which is not required with a lower index \
- than a required positional argument: {:?} index {}",
- p.b.name,
- p.index);
- } else if p.b.settings.is_set(ArgSettings::Required) {
- found = true;
- continue;
+ if self.is_set(AppSettings::AllowMissingPositional) {
+ let mut found = false;
+ let mut foundx2 = false;
+ for p in self.positionals.values().rev() {
+ if foundx2 && !p.b.settings.is_set(ArgSettings::Required) {
+ // [arg1] is Ok
+ // [arg1] Is not
+ debug_assert!(p.b.settings.is_set(ArgSettings::Required),
+ "Found positional argument which is not required with a lower index \
+ than a required positional argument by two or more: {:?} index {}",
+ p.b.name,
+ p.index);
+ } else if p.b.settings.is_set(ArgSettings::Required) {
+ if found {
+ foundx2 = true;
+ continue;
+ }
+ found = true;
+ continue;
+ } else {
+ found = false;
+ }
+ }
+ } else {
+ let mut found = false;
+ for p in self.positionals.values().rev() {
+ if found {
+ debug_assert!(p.b.settings.is_set(ArgSettings::Required),
+ "Found positional argument which is not required with a lower index \
+ than a required positional argument: {:?} index {}",
+ p.b.name,
+ p.index);
+ } else if p.b.settings.is_set(ArgSettings::Required) {
+ found = true;
+ continue;
+ }
}
}
}
@@ -861,12 +882,15 @@ impl<'a, 'b> Parser<'a, 'b>
let low_index_mults = self.is_set(AppSettings::LowIndexMultiplePositional) &&
!self.positionals.is_empty() &&
pos_counter == (self.positionals.len() - 1);
+ let missing_pos = self.is_set(AppSettings::AllowMissingPositional) &&
+ !self.positionals.is_empty() &&
+ pos_counter == (self.positionals.len() - 1);
debugln!("Parser::get_matches_with: Low index multiples...{:?}", low_index_mults);
debugln!("Parser::get_matches_with: Positional counter...{}", pos_counter);
- if low_index_mults {
+ if low_index_mults || missing_pos {
if let Some(na) = it.peek() {
let n = (*na).clone().into();
- needs_val_of = if let None = needs_val_of {
+ needs_val_of = if needs_val_of.is_none() {
if let Some(p) = self.positionals.get(pos_counter) {
Some(p.b.name)
} else {
diff --git a/src/app/settings.rs b/src/app/settings.rs
index ab96d3ca..60481550 100644
--- a/src/app/settings.rs
+++ b/src/app/settings.rs
@@ -5,39 +5,40 @@ use std::ops::BitOr;
bitflags! {
flags Flags: u64 {
- const SC_NEGATE_REQS = 0b000000000000000000000000000000001,
- const SC_REQUIRED = 0b000000000000000000000000000000010,
- const A_REQUIRED_ELSE_HELP = 0b000000000000000000000000000000100,
- const GLOBAL_VERSION = 0b000000000000000000000000000001000,
- const VERSIONLESS_SC = 0b000000000000000000000000000010000,
- const UNIFIED_HELP = 0b000000000000000000000000000100000,
- const WAIT_ON_ERROR = 0b000000000000000000000000001000000,
- const SC_REQUIRED_ELSE_HELP= 0b000000000000000000000000010000000,
- const NEEDS_LONG_HELP = 0b000000000000000000000000100000000,
- const NEEDS_LONG_VERSION = 0b000000000000000000000001000000000,
- const NEEDS_SC_HELP = 0b000000000000000000000010000000000,
- const DISABLE_VERSION = 0b000000000000000000000100000000000,
- const HIDDEN = 0b000000000000000000001000000000000,
- const TRAILING_VARARG = 0b000000000000000000010000000000000,
- const NO_BIN_NAME = 0b000000000000000000100000000000000,
- const ALLOW_UNK_SC = 0b000000000000000001000000000000000,
- const UTF8_STRICT = 0b000000000000000010000000000000000,
- const UTF8_NONE = 0b000000000000000100000000000000000,
- const LEADING_HYPHEN = 0b000000000000001000000000000000000,
- const NO_POS_VALUES = 0b000000000000010000000000000000000,
- const NEXT_LINE_HELP = 0b000000000000100000000000000000000,
- const DERIVE_DISP_ORDER = 0b000000000001000000000000000000000,
- const COLORED_HELP = 0b000000000010000000000000000000000,
- const COLOR_ALWAYS = 0b000000000100000000000000000000000,
- const COLOR_AUTO = 0b000000001000000000000000000000000,
- const COLOR_NEVER = 0b000000010000000000000000000000000,
- const DONT_DELIM_TRAIL = 0b000000100000000000000000000000000,
- const ALLOW_NEG_NUMS = 0b000001000000000000000000000000000,
- const LOW_INDEX_MUL_POS = 0b000010000000000000000000000000000,
- const DISABLE_HELP_SC = 0b000100000000000000000000000000000,
- const DONT_COLLAPSE_ARGS = 0b001000000000000000000000000000000,
- const ARGS_NEGATE_SCS = 0b010000000000000000000000000000000,
- const PROPAGATE_VALS_DOWN = 0b100000000000000000000000000000000,
+ const SC_NEGATE_REQS = 0b0000000000000000000000000000000001,
+ const SC_REQUIRED = 0b0000000000000000000000000000000010,
+ const A_REQUIRED_ELSE_HELP = 0b0000000000000000000000000000000100,
+ const GLOBAL_VERSION = 0b0000000000000000000000000000001000,
+ const VERSIONLESS_SC = 0b0000000000000000000000000000010000,
+ const UNIFIED_HELP = 0b0000000000000000000000000000100000,
+ const WAIT_ON_ERROR = 0b0000000000000000000000000001000000,
+ const SC_REQUIRED_ELSE_HELP= 0b0000000000000000000000000010000000,
+ const NEEDS_LONG_HELP = 0b0000000000000000000000000100000000,
+ const NEEDS_LONG_VERSION = 0b0000000000000000000000001000000000,
+ const NEEDS_SC_HELP = 0b0000000000000000000000010000000000,
+ const DISABLE_VERSION = 0b0000000000000000000000100000000000,
+ const HIDDEN = 0b0000000000000000000001000000000000,
+ const TRAILING_VARARG = 0b0000000000000000000010000000000000,
+ const NO_BIN_NAME = 0b0000000000000000000100000000000000,
+ const ALLOW_UNK_SC = 0b0000000000000000001000000000000000,
+ const UTF8_STRICT = 0b0000000000000000010000000000000000,
+ const UTF8_NONE = 0b0000000000000000100000000000000000,
+ const LEADING_HYPHEN = 0b0000000000000001000000000000000000,
+ const NO_POS_VALUES = 0b0000000000000010000000000000000000,
+ const NEXT_LINE_HELP = 0b0000000000000100000000000000000000,
+ const DERIVE_DISP_ORDER = 0b0000000000001000000000000000000000,
+ const COLORED_HELP = 0b0000000000010000000000000000000000,
+ const COLOR_ALWAYS = 0b0000000000100000000000000000000000,
+ const COLOR_AUTO = 0b0000000001000000000000000000000000,
+ const COLOR_NEVER = 0b0000000010000000000000000000000000,
+ const DONT_DELIM_TRAIL = 0b0000000100000000000000000000000000,
+ const ALLOW_NEG_NUMS = 0b0000001000000000000000000000000000,
+ const LOW_INDEX_MUL_POS = 0b0000010000000000000000000000000000,
+ const DISABLE_HELP_SC = 0b0000100000000000000000000000000000,
+ const DONT_COLLAPSE_ARGS = 0b0001000000000000000000000000000000,
+ const ARGS_NEGATE_SCS = 0b0010000000000000000000000000000000,
+ const PROPAGATE_VALS_DOWN = 0b0100000000000000000000000000000000,
+ const ALLOW_MISSING_POS = 0b1000000000000000000000000000000000,
}
}
@@ -72,6 +73,7 @@ impl AppFlags {
AllowInvalidUtf8 => UTF8_NONE,
AllowLeadingHyphen => LEADING_HYPHEN,
AllowNegativeNumbers => ALLOW_NEG_NUMS,
+ AllowMissingPositional => ALLOW_MISSING_POS,
ColoredHelp => COLORED_HELP,
ColorAlways => COLOR_ALWAYS,
ColorAuto => COLOR_AUTO,
@@ -199,6 +201,39 @@ pub enum AppSettings {
/// [`AllowLeadingHyphen`]: ./enum.AppSettings.html#variant.AllowLeadingHyphen
AllowNegativeNumbers,
+ /// Allows one to implement a CLI where the second to last positional argument is optional, but
+ /// the final positional argument is required. Such as `$ prog [optional] ` where one
+ /// of the two following usages is allowed:
+ ///
+ /// * `$ prog [optional] `
+ /// * `$ prog `
+ ///
+ /// This would otherwise not be allowed. This is useful when `[optional]` has a default value.
+ ///
+ /// **Note:** In addition to using this setting, the second positional argument *must* be
+ /// [required]
+ ///
+ /// # Examples
+ ///
+ /// ```rust
+ /// # use clap::{App, Arg, AppSettings};
+ /// // Assume there is an external subcommand named "subcmd"
+ /// let m = App::new("myprog")
+ /// .setting(AppSettings::AllowMissingPositional)
+ /// .arg(Arg::with_name("arg1")
+ /// .default_value("something"))
+ /// .arg(Arg::with_name("arg2")
+ /// .required(true))
+ /// .get_matches_from(vec![
+ /// "myprog", "other"
+ /// ]);
+ ///
+ /// assert_eq!(m.value_of("arg1"), Some("something"));
+ /// assert_eq!(m.value_of("arg2"), Some("other"));
+ /// ```
+ /// [required]: ./struct.Arg.html#method.required
+ AllowMissingPositional,
+
/// Specifies that an unexpected positional argument,
/// which would otherwise cause a [`ErrorKind::UnknownArgument`] error,
/// should instead be treated as a [`SubCommand`] within the [`ArgMatches`] struct.
diff --git a/tests/app_settings.rs b/tests/app_settings.rs
index 0e3a0c6c..17aa8bd8 100644
--- a/tests/app_settings.rs
+++ b/tests/app_settings.rs
@@ -456,4 +456,15 @@ fn propagate_vals_down() {
assert_eq!(m.value_of("cmd"), Some("set"));
let sub_m = m.subcommand_matches("foo").unwrap();
assert_eq!(sub_m.value_of("cmd"), Some("set"));
+}
+
+#[test]
+fn allow_missing_positional() {
+ let m = App::new("test")
+ .setting(AppSettings::AllowMissingPositional)
+ .arg(Arg::from_usage("[src] 'some file'").default_value("src"))
+ .arg_from_usage(" 'some file'")
+ .get_matches_from(vec!["test", "file"]);
+ assert_eq!(m.value_of("src"), Some("src"));
+ assert_eq!(m.value_of("dest"), Some("file"));
}
\ No newline at end of file
diff --git a/tests/positionals.rs b/tests/positionals.rs
index d289d894..e8a0cd7b 100644
--- a/tests/positionals.rs
+++ b/tests/positionals.rs
@@ -190,3 +190,24 @@ fn single_positional_required_usage_string() {
.get_matches_from(vec!["test", "file"]);
assert_eq!(m.usage(), "USAGE:\n test ");
}
+
+#[test]
+#[should_panic]
+fn missing_required() {
+ let r = App::new("test")
+ .arg_from_usage("[FILE1] 'some file'")
+ .arg_from_usage(" 'some file'")
+ .get_matches_from_safe(vec!["test", "file"]);
+ assert!(r.is_err());
+ assert_eq!(r.unwrap_err().kind, ErrorKind::MissingRequiredArgument);
+}
+
+#[test]
+fn missing_required_2() {
+ let r = App::new("test")
+ .arg_from_usage(" 'some file'")
+ .arg_from_usage(" 'some file'")
+ .get_matches_from_safe(vec!["test", "file"]);
+ assert!(r.is_err());
+ assert_eq!(r.unwrap_err().kind, ErrorKind::MissingRequiredArgument);
+}