Import structopt-0.3.14
Change-Id: I03e7eaf9f442092701ce3175cb78c8ea2237f616
diff --git a/tests/options.rs b/tests/options.rs
new file mode 100644
index 0000000..803abb4
--- /dev/null
+++ b/tests/options.rs
@@ -0,0 +1,336 @@
+// 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::StructOpt;
+
+#[test]
+fn required_option() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short, long)]
+ arg: i32,
+ }
+ assert_eq!(
+ Opt { arg: 42 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a42"]))
+ );
+ assert_eq!(
+ Opt { arg: 42 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "42"]))
+ );
+ assert_eq!(
+ Opt { arg: 42 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "--arg", "42"]))
+ );
+ assert!(Opt::clap().get_matches_from_safe(&["test"]).is_err());
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "-a42", "-a24"])
+ .is_err());
+}
+
+#[test]
+fn optional_option() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short)]
+ arg: Option<i32>,
+ }
+ assert_eq!(
+ Opt { arg: Some(42) },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a42"]))
+ );
+ assert_eq!(
+ Opt { arg: None },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "-a42", "-a24"])
+ .is_err());
+}
+
+#[test]
+fn option_with_default() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short, default_value = "42")]
+ arg: i32,
+ }
+ assert_eq!(
+ Opt { arg: 24 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a24"]))
+ );
+ assert_eq!(
+ Opt { arg: 42 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "-a42", "-a24"])
+ .is_err());
+}
+
+#[test]
+fn option_with_raw_default() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short, default_value = "42")]
+ arg: i32,
+ }
+ assert_eq!(
+ Opt { arg: 24 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a24"]))
+ );
+ assert_eq!(
+ Opt { arg: 42 },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "-a42", "-a24"])
+ .is_err());
+}
+
+#[test]
+fn options() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short, long)]
+ arg: Vec<i32>,
+ }
+ assert_eq!(
+ Opt { arg: vec![24] },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a24"]))
+ );
+ assert_eq!(
+ Opt { arg: vec![] },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+ assert_eq!(
+ Opt { arg: vec![24, 42] },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a24", "--arg", "42"]))
+ );
+}
+
+#[test]
+fn empy_default_value() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short, default_value = "")]
+ arg: String,
+ }
+ assert_eq!(Opt { arg: "".into() }, Opt::from_iter(&["test"]));
+ assert_eq!(
+ Opt { arg: "foo".into() },
+ Opt::from_iter(&["test", "-afoo"])
+ );
+}
+
+#[test]
+fn option_from_str() {
+ #[derive(Debug, PartialEq)]
+ struct A;
+
+ impl<'a> From<&'a str> for A {
+ fn from(_: &str) -> A {
+ A
+ }
+ }
+
+ #[derive(Debug, StructOpt, PartialEq)]
+ struct Opt {
+ #[structopt(parse(from_str))]
+ a: Option<A>,
+ }
+
+ assert_eq!(Opt { a: None }, Opt::from_iter(&["test"]));
+ assert_eq!(Opt { a: Some(A) }, Opt::from_iter(&["test", "foo"]));
+}
+
+#[test]
+fn optional_argument_for_optional_option() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short)]
+ #[allow(clippy::option_option)]
+ arg: Option<Option<i32>>,
+ }
+ assert_eq!(
+ Opt {
+ arg: Some(Some(42))
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a42"]))
+ );
+ assert_eq!(
+ Opt { arg: Some(None) },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+ );
+ assert_eq!(
+ Opt { arg: None },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+ assert!(Opt::clap()
+ .get_matches_from_safe(&["test", "-a42", "-a24"])
+ .is_err());
+}
+
+#[test]
+fn two_option_options() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ #[allow(clippy::option_option)]
+ struct Opt {
+ #[structopt(short)]
+ arg: Option<Option<i32>>,
+
+ #[structopt(long)]
+ field: Option<Option<String>>,
+ }
+ assert_eq!(
+ Opt {
+ arg: Some(Some(42)),
+ field: Some(Some("f".into()))
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a42", "--field", "f"]))
+ );
+ assert_eq!(
+ Opt {
+ arg: Some(Some(42)),
+ field: Some(None)
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a42", "--field"]))
+ );
+ assert_eq!(
+ Opt {
+ arg: Some(None),
+ field: Some(None)
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "--field"]))
+ );
+ assert_eq!(
+ Opt {
+ arg: Some(None),
+ field: Some(Some("f".into()))
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "--field", "f"]))
+ );
+ assert_eq!(
+ Opt {
+ arg: None,
+ field: Some(None)
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "--field"]))
+ );
+ assert_eq!(
+ Opt {
+ arg: None,
+ field: None
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+}
+
+#[test]
+fn optional_vec() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short)]
+ arg: Option<Vec<i32>>,
+ }
+ assert_eq!(
+ Opt { arg: Some(vec![1]) },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "1"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a1", "-a2"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a1", "-a2", "-a"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a1", "-a", "-a2"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "1", "2"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2, 3])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "1", "2", "-a", "3"]))
+ );
+
+ assert_eq!(
+ Opt { arg: Some(vec![]) },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a"]))
+ );
+
+ assert_eq!(
+ Opt { arg: Some(vec![]) },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "-a"]))
+ );
+
+ assert_eq!(
+ Opt { arg: None },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+}
+
+#[test]
+fn two_optional_vecs() {
+ #[derive(StructOpt, PartialEq, Debug)]
+ struct Opt {
+ #[structopt(short)]
+ arg: Option<Vec<i32>>,
+
+ #[structopt(short)]
+ b: Option<Vec<i32>>,
+ }
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1]),
+ b: Some(vec![])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "1", "-b"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1]),
+ b: Some(vec![])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a", "-b", "-a1"]))
+ );
+
+ assert_eq!(
+ Opt {
+ arg: Some(vec![1, 2]),
+ b: Some(vec![1, 2])
+ },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test", "-a1", "-a2", "-b1", "-b2"]))
+ );
+
+ assert_eq!(
+ Opt { arg: None, b: None },
+ Opt::from_clap(&Opt::clap().get_matches_from(&["test"]))
+ );
+}