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// Make sure that we're testing for the correct conditions!
struct Rectangle {
width: i32,
height: i32,
}
impl Rectangle {
// Only change the test functions themselves
fn new(width: i32, height: i32) -> Self {
if width <= 0 || height <= 0 {
panic!("Rectangle width and height cannot be negative!")
}
Rectangle { width, height }
}
}
fn main() {
// You can optionally experiment here.
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn correct_width_and_height() {
// This test should check if the rectangle is the size that we pass into its constructor
let rect = Rectangle::new(10, 20);
assert_eq!(???, 10); // check width
assert_eq!(???, 20); // check height
}
#[test]
fn negative_width() {
// This test should check if program panics when we try to create rectangle with negative width
let _rect = Rectangle::new(-10, 10);
}
#[test]
fn negative_height() {
// This test should check if program panics when we try to create rectangle with negative height
let _rect = Rectangle::new(10, -10);
}
}
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