Import structopt-0.3.14
Change-Id: I03e7eaf9f442092701ce3175cb78c8ea2237f616
diff --git a/tests/deny-warnings.rs b/tests/deny-warnings.rs
new file mode 100644
index 0000000..721204a
--- /dev/null
+++ b/tests/deny-warnings.rs
@@ -0,0 +1,47 @@
+// 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.
+
+#![deny(warnings)]
+
+use structopt::StructOpt;
+
+fn try_str(s: &str) -> Result<String, std::convert::Infallible> {
+ Ok(s.into())
+}
+
+#[test]
+fn warning_never_struct() {
+ #[derive(Debug, PartialEq, StructOpt)]
+ struct Opt {
+ #[structopt(parse(try_from_str = try_str))]
+ s: String,
+ }
+ assert_eq!(
+ Opt {
+ s: "foo".to_string()
+ },
+ Opt::from_iter(&["test", "foo"])
+ );
+}
+
+#[test]
+fn warning_never_enum() {
+ #[derive(Debug, PartialEq, StructOpt)]
+ enum Opt {
+ Foo {
+ #[structopt(parse(try_from_str = try_str))]
+ s: String,
+ },
+ }
+ assert_eq!(
+ Opt::Foo {
+ s: "foo".to_string()
+ },
+ Opt::from_iter(&["test", "foo", "foo"])
+ );
+}