42 lines
1.1 KiB
Rust
42 lines
1.1 KiB
Rust
// traits3.rs
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//
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// Your task is to implement the Licensed trait for
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// both structures and have them return the same
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// information without writing the same function twice.
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//
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// Consider what you can add to the Licensed trait.
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// Execute `rustlings hint traits3` or use the `hint` watch subcommand for a hint.
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pub trait Licensed {
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fn licensing_info(&self) -> String {
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"Some information".to_string()
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}
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}
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struct SomeSoftware {
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version_number: i32,
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}
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struct OtherSoftware {
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version_number: String,
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}
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impl Licensed for SomeSoftware {} // Don't edit this line
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impl Licensed for OtherSoftware {} // Don't edit this line
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn is_licensing_info_the_same() {
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let licensing_info = String::from("Some information");
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let some_software = SomeSoftware { version_number: 1 };
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let other_software = OtherSoftware {
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version_number: "v2.0.0".to_string(),
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};
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assert_eq!(some_software.licensing_info(), licensing_info);
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assert_eq!(other_software.licensing_info(), licensing_info);
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}
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}
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