41 lines
1.1 KiB
Rust
41 lines
1.1 KiB
Rust
#![allow(dead_code)]
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trait Licensed {
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// TODO: Add a default implementation for `licensing_info` so that
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// implementors like the two structs below can share that default behavior
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// without repeating the function.
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// The default license information should be the string "Default license".
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fn licensing_info(&self) -> String;
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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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fn main() {
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// You can optionally experiment here.
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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 is_licensing_info_the_same() {
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let licensing_info = "Default license";
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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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