45 lines
1.1 KiB
Rust
45 lines
1.1 KiB
Rust
// traits4.rs
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//
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// Your task is to replace the '??' sections so the code compiles.
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// Don't change any line other than the marked one.
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// Execute `rustlings hint traits4` 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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struct OtherSoftware {}
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impl Licensed for SomeSoftware {}
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impl Licensed for OtherSoftware {}
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// YOU MAY ONLY CHANGE THE NEXT LINE
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fn compare_license_types(software: impl Licensed, software_two: impl Licensed) -> bool {
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software.licensing_info() == software_two.licensing_info()
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}
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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 compare_license_information() {
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let some_software = SomeSoftware {};
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let other_software = OtherSoftware {};
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assert!(compare_license_types(some_software, other_software));
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}
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#[test]
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fn compare_license_information_backwards() {
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let some_software = SomeSoftware {};
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let other_software = OtherSoftware {};
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assert!(compare_license_types(other_software, some_software));
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}
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}
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