diff options
Diffstat (limited to 'rustlings')
| -rw-r--r-- | rustlings/.rustlings-state.txt | 6 | ||||
| -rw-r--r-- | rustlings/exercises/17_tests/tests1.rs | 5 | ||||
| -rw-r--r-- | rustlings/exercises/17_tests/tests2.rs | 8 | ||||
| -rw-r--r-- | rustlings/exercises/17_tests/tests3.rs | 6 | ||||
| -rw-r--r-- | rustlings/solutions/17_tests/tests1.rs | 24 | ||||
| -rw-r--r-- | rustlings/solutions/17_tests/tests2.rs | 22 | ||||
| -rw-r--r-- | rustlings/solutions/17_tests/tests3.rs | 45 |
7 files changed, 100 insertions, 16 deletions
diff --git a/rustlings/.rustlings-state.txt b/rustlings/.rustlings-state.txt index e366df4..4d58c9f 100644 --- a/rustlings/.rustlings-state.txt +++ b/rustlings/.rustlings-state.txt @@ -1,6 +1,6 @@ DON'T EDIT THIS FILE! -tests1 +tests3 intro1 intro2 @@ -68,4 +68,6 @@ traits5 quiz3 lifetimes1 lifetimes2 -lifetimes3
\ No newline at end of file +lifetimes3 +tests1 +tests2
\ No newline at end of file diff --git a/rustlings/exercises/17_tests/tests1.rs b/rustlings/exercises/17_tests/tests1.rs index 7529f9f..7fd7e10 100644 --- a/rustlings/exercises/17_tests/tests1.rs +++ b/rustlings/exercises/17_tests/tests1.rs @@ -13,11 +13,12 @@ fn main() { mod tests { // TODO: Import `is_even`. You can use a wildcard to import everything in // the outer module. + use super::*; #[test] fn you_can_assert() { // TODO: Test the function `is_even` with some values. - assert!(); - assert!(); + assert!(is_even(2)); + assert!(!is_even(3)); } } diff --git a/rustlings/exercises/17_tests/tests2.rs b/rustlings/exercises/17_tests/tests2.rs index 0c6573e..16bf0fa 100644 --- a/rustlings/exercises/17_tests/tests2.rs +++ b/rustlings/exercises/17_tests/tests2.rs @@ -15,9 +15,9 @@ mod tests { #[test] fn you_can_assert_eq() { // TODO: Test the function `power_of_2` with some values. - assert_eq!(); - assert_eq!(); - assert_eq!(); - assert_eq!(); + assert_eq!(power_of_2(1), 2); + assert_eq!(power_of_2(2), 4); + assert_eq!(power_of_2(3), 8); + assert_eq!(power_of_2(4), 16); } } diff --git a/rustlings/exercises/17_tests/tests3.rs b/rustlings/exercises/17_tests/tests3.rs index 822184e..085bb62 100644 --- a/rustlings/exercises/17_tests/tests3.rs +++ b/rustlings/exercises/17_tests/tests3.rs @@ -29,13 +29,14 @@ mod tests { // TODO: This test should check if the rectangle has the size that we // pass to its constructor. let rect = Rectangle::new(10, 20); - assert_eq!(todo!(), 10); // Check width - assert_eq!(todo!(), 20); // Check height + assert_eq!(rect.width, 10); // Check width + assert_eq!(rect.height, 20); // Check height } // TODO: This test should check if the program panics when we try to create // a rectangle with negative width. #[test] + #[should_panic] fn negative_width() { let _rect = Rectangle::new(-10, 10); } @@ -43,6 +44,7 @@ mod tests { // TODO: This test should check if the program panics when we try to create // a rectangle with negative height. #[test] + #[should_panic] fn negative_height() { let _rect = Rectangle::new(10, -10); } diff --git a/rustlings/solutions/17_tests/tests1.rs b/rustlings/solutions/17_tests/tests1.rs index dcf2377..c52b8b1 100644 --- a/rustlings/solutions/17_tests/tests1.rs +++ b/rustlings/solutions/17_tests/tests1.rs @@ -1,4 +1,24 @@ +// Tests are important to ensure that your code does what you think it should +// do. + +fn is_even(n: i64) -> bool { + n % 2 == 0 +} + fn main() { - // DON'T EDIT THIS SOLUTION FILE! - // It will be automatically filled after you finish the exercise. + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + // When writing unit tests, it is common to import everything from the outer + // module (`super`) using a wildcard. + use super::*; + + #[test] + fn you_can_assert() { + assert!(is_even(0)); + assert!(!is_even(-1)); + // ^ You can assert `false` using the negation operator `!`. + } } diff --git a/rustlings/solutions/17_tests/tests2.rs b/rustlings/solutions/17_tests/tests2.rs index dcf2377..39a0005 100644 --- a/rustlings/solutions/17_tests/tests2.rs +++ b/rustlings/solutions/17_tests/tests2.rs @@ -1,4 +1,22 @@ +// Calculates the power of 2 using a bit shift. +// `1 << n` is equivalent to "2 to the power of n". +fn power_of_2(n: u8) -> u64 { + 1 << n +} + fn main() { - // DON'T EDIT THIS SOLUTION FILE! - // It will be automatically filled after you finish the exercise. + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn you_can_assert_eq() { + assert_eq!(power_of_2(0), 1); + assert_eq!(power_of_2(1), 2); + assert_eq!(power_of_2(2), 4); + assert_eq!(power_of_2(3), 8); + } } diff --git a/rustlings/solutions/17_tests/tests3.rs b/rustlings/solutions/17_tests/tests3.rs index dcf2377..487fdc6 100644 --- a/rustlings/solutions/17_tests/tests3.rs +++ b/rustlings/solutions/17_tests/tests3.rs @@ -1,4 +1,45 @@ +struct Rectangle { + width: i32, + height: i32, +} + +impl Rectangle { + // Don't change this function. + fn new(width: i32, height: i32) -> Self { + if width <= 0 || height <= 0 { + // Returning a `Result` would be better here. But we want to learn + // how to test functions that can panic. + panic!("Rectangle width and height must be positive"); + } + + Rectangle { width, height } + } +} + fn main() { - // DON'T EDIT THIS SOLUTION FILE! - // It will be automatically filled after you finish the exercise. + // You can optionally experiment here. +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn correct_width_and_height() { + let rect = Rectangle::new(10, 20); + assert_eq!(rect.width, 10); // Check width + assert_eq!(rect.height, 20); // Check height + } + + #[test] + #[should_panic] // Added this attribute to check that the test panics. + fn negative_width() { + let _rect = Rectangle::new(-10, 10); + } + + #[test] + #[should_panic] // Added this attribute to check that the test panics. + fn negative_height() { + let _rect = Rectangle::new(10, -10); + } } |