Import structopt-0.3.14
Change-Id: I03e7eaf9f442092701ce3175cb78c8ea2237f616
diff --git a/tests/arguments.rs b/tests/arguments.rs
new file mode 100644
index 0000000..96a0938
--- /dev/null
+++ b/tests/arguments.rs
@@ -0,0 +1,86 @@
+// Copyright 2018 Guillaume Pinot (@TeXitoi) <texitoi@texitoi.eu>
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+use structopt::clap;
+use structopt::StructOpt;
+
+#[test]
+fn required_argument() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ arg: i32,
+ }
+ assert_eq!(Opt { arg: 42 }, Opt::from_iter(&["test", "42"]));
+ assert!(Opt::clap().get_matches_from_safe(&["test"]).is_err());
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "42", "24"])
+ .is_err());
+}
+
+#[test]
+fn optional_argument() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ arg: Option<i32>,
+ }
+ assert_eq!(Opt { arg: Some(42) }, Opt::from_iter(&["test", "42"]));
+ assert_eq!(Opt { arg: None }, Opt::from_iter(&["test"]));
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "42", "24"])
+ .is_err());
+}
+
+#[test]
+fn argument_with_default() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(default_value = "42")]
+ arg: i32,
+ }
+ assert_eq!(Opt { arg: 24 }, Opt::from_iter(&["test", "24"]));
+ assert_eq!(Opt { arg: 42 }, Opt::from_iter(&["test"]));
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "42", "24"])
+ .is_err());
+}
+
+#[test]
+fn arguments() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ arg: Vec<i32>,
+ }
+ assert_eq!(Opt { arg: vec![24] }, Opt::from_iter(&["test", "24"]));
+ assert_eq!(Opt { arg: vec![] }, Opt::from_iter(&["test"]));
+ assert_eq!(
+ Opt { arg: vec![24, 42] },
+ Opt::from_iter(&["test", "24", "42"])
+ );
+}
+
+#[test]
+fn arguments_safe() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ arg: Vec<i32>,
+ }
+ assert_eq!(
+ Opt { arg: vec![24] },
+ Opt::from_iter_safe(&["test", "24"]).unwrap()
+ );
+ assert_eq!(Opt { arg: vec![] }, Opt::from_iter_safe(&["test"]).unwrap());
+ assert_eq!(
+ Opt { arg: vec![24, 42] },
+ Opt::from_iter_safe(&["test", "24", "42"]).unwrap()
+ );
+
+ assert_eq!(
+ clap::ErrorKind::ValueValidation,
+ Opt::from_iter_safe(&["test", "NOPE"]).err().unwrap().kind
+ );
+}