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strum/strum_tests/tests/display.rs
Azriel Hoh 1c00f6cfa5 Feature/33/derive enum variants (#34)
* Run rustfmt over repository.

* Bump `syn` to 0.15

* Implemented ability to `serialize_all` using cases from `heck`.

Issue #21

* Use `path` and `version` in dependency specifications.

Issue #21

* Updated documentation.

Issue #21

* Added `CHANGELOG.md`.

* Also convert case when deriving `Display`.

Issue #21

* Added `EnumDiscriminants` derive.

Issue #33

* Added the ability to rename derived `EnumDiscriminants`.

Issue #33

* Updated `README.md` and lib.rs docs.

Issue #33

* Updated `CHANGELOG.md`.

Issue #33

* WIP: refactoring to allow attributes on discriminants enum.

* Use single `strum_discriminants` top level attribute.

Issue #33

* Allow multiple declarations of `strum_discriminants` attribute.

Issue #33

* Pass through all other attributes to discriminant enum.

Issue #33

* Add `impl From<MyEnum> for MyEnumDiscriminants`.

Issue #33

* Add `impl<'_enum> From<&'_enum MyEnum> for MyEnumDiscriminants`.

Issue #33

* Added complex case test for `From` derivation.

Issue #33

* Added docs to some helper functions.

* Added docs about `From` impls.

Issue #33
2018-09-26 12:13:45 -07:00

58 lines
1.2 KiB
Rust

extern crate strum;
#[macro_use]
extern crate strum_macros;
#[derive(Debug, Eq, PartialEq, EnumString, Display)]
enum Color {
#[strum(to_string = "RedRed")]
Red,
#[strum(serialize = "b", to_string = "blue")]
Blue { hue: usize },
#[strum(serialize = "y", serialize = "yellow")]
Yellow,
#[strum(default = "true")]
Green(String),
}
#[test]
fn to_blue_string() {
assert_eq!(String::from("blue"), format!("{}", Color::Blue { hue: 0 }));
}
#[test]
fn to_yellow_string() {
assert_eq!(String::from("yellow"), format!("{}", Color::Yellow));
}
#[test]
fn to_red_string() {
assert_eq!(String::from("RedRed"), format!("{}", Color::Red));
}
#[derive(Display, Debug, Eq, PartialEq)]
#[strum(serialize_all = "snake_case")]
enum Brightness {
DarkBlack,
Dim {
glow: usize,
},
#[strum(serialize = "bright")]
BrightWhite,
}
#[test]
fn brightness_to_string() {
assert_eq!(
String::from("dark_black"),
Brightness::DarkBlack.to_string().as_ref()
);
assert_eq!(
String::from("dim"),
Brightness::Dim { glow: 0 }.to_string().as_ref()
);
assert_eq!(
String::from("bright"),
Brightness::BrightWhite.to_string().as_ref()
);
}