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64 lines
1.7 KiB
Rust
64 lines
1.7 KiB
Rust
// This quiz tests:
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// - Generics
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// - Traits
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//
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// An imaginary magical school has a new report card generation system written
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// in Rust! Currently, the system only supports creating report cards where the
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// student's grade is represented numerically (e.g. 1.0 -> 5.5). However, the
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// school also issues alphabetical grades (A+ -> F-) and needs to be able to
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// print both types of report card!
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//
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// Make the necessary code changes in the struct `ReportCard` and the impl
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// block to support alphabetical report cards in addition to numerical ones.
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// TODO: Adjust the struct as described above.
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struct ReportCard {
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grade: f32,
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student_name: String,
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student_age: u8,
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}
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// TODO: Adjust the impl block as described above.
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impl ReportCard {
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fn print(&self) -> String {
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format!(
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"{} ({}) - achieved a grade of {}",
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&self.student_name, &self.student_age, &self.grade,
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)
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}
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}
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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 generate_numeric_report_card() {
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let report_card = ReportCard {
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grade: 2.1,
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student_name: "Tom Wriggle".to_string(),
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student_age: 12,
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};
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assert_eq!(
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report_card.print(),
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"Tom Wriggle (12) - achieved a grade of 2.1",
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);
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}
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#[test]
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fn generate_alphabetic_report_card() {
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let report_card = ReportCard {
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grade: "A+",
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student_name: "Gary Plotter".to_string(),
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student_age: 11,
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};
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assert_eq!(
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report_card.print(),
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"Gary Plotter (11) - achieved a grade of A+",
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);
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}
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}
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