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Diffstat (limited to 'structopt/tests/special_types.rs')
-rw-r--r-- | structopt/tests/special_types.rs | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/structopt/tests/special_types.rs b/structopt/tests/special_types.rs new file mode 100644 index 0000000..ffed5e2 --- /dev/null +++ b/structopt/tests/special_types.rs @@ -0,0 +1,73 @@ +//! Checks that types like `::std::option::Option` are not special + +use structopt::StructOpt; + +#[rustversion::since(1.37)] +#[test] +fn special_types_bool() { + mod inner { + #[allow(non_camel_case_types)] + #[derive(PartialEq, Debug)] + pub struct bool(pub String); + + impl std::str::FromStr for self::bool { + type Err = String; + + fn from_str(s: &str) -> Result<Self, Self::Err> { + Ok(self::bool(s.into())) + } + } + }; + + #[derive(StructOpt, PartialEq, Debug)] + struct Opt { + arg: inner::bool, + } + + assert_eq!( + Opt { + arg: inner::bool("success".into()) + }, + Opt::from_iter(&["test", "success"]) + ); +} + +#[test] +fn special_types_option() { + fn parser(s: &str) -> Option<String> { + Some(s.to_string()) + } + + #[derive(StructOpt, PartialEq, Debug)] + struct Opt { + #[structopt(parse(from_str = parser))] + arg: ::std::option::Option<String>, + } + + assert_eq!( + Opt { + arg: Some("success".into()) + }, + Opt::from_iter(&["test", "success"]) + ); +} + +#[test] +fn special_types_vec() { + fn parser(s: &str) -> Vec<String> { + vec![s.to_string()] + } + + #[derive(StructOpt, PartialEq, Debug)] + struct Opt { + #[structopt(parse(from_str = parser))] + arg: ::std::vec::Vec<String>, + } + + assert_eq!( + Opt { + arg: vec!["success".into()] + }, + Opt::from_iter(&["test", "success"]) + ); +} |