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testing exercise: improve the instructions

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Nathan Stocks
2021-08-18 21:40:58 -06:00
parent db5fbc33be
commit baaa6b69fb
1 changed files with 9 additions and 7 deletions
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exercise/testing/src/lib.rs
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@@ -15,26 +15,28 @@ pub fn splish(a: i32, b: i32) -> i32 {
mod test { mod test {
// 2. Bring all the library items into scope with a `use` statement // 2. Bring all the library items into scope with a `use` statement
// Hint: It's okay to use `*` here.
// 3. Write a test function that verifies the following condition using assert_eq! or assert_ne! // 3. Write a test function that verifies the following condition using the `assert_eq!` or
// `assert_ne!` macros
// - sploosh(1, 2, 3) returns 4 // - sploosh(1, 2, 3) returns 4
// - sploosh(5, 6, 7) does not return 4 // - sploosh(5, 6, 7) does not return 4
// - If you pass sploosh a negative number for the first argument, 99 is returned // - If you pass sploosh a negative number for the first argument, 99 is returned
// //
// `cargo test` should run your tests AND pass // `cargo test` should run your tests and pass
// Hint: Don't forget the `test` attribute for your test function! // Hint: Don't forget the `#[test]` attribute for your test function!
// 4. Write a test function that verifies the following conditions using assert! // 4. Write a test function that verifies the following conditions using the `assert!` macro
// - splish(100, 10) is negative // - splish(100, 10) is negative
// - splish(40, 20) is positive // - splish(40, 20) is positive
// - splish(9, 3) is 0 // - splish(9, 3) is 0
} }
// 4. Create a tests/ directory and an integration test file tests/more_tests.rs // 4. Create a `tests/` directory and an integration test file `tests/more_tests.rs`
// Inside that file, create a test function that verifies: // Inside that file, create a test function that verifies:
// - sploosh(splish(-1, 0), splish(1, 1), splish(3, 2)) returns 4 // - that `sploosh(splish(-1, 0), splish(1, 1), splish(3, 2))` returns the value `4`
// //
// `cargo test` should run your more_tests.rs file and pass // `cargo test` should run your `more_tests.rs` file and pass
// Challenge: Create a benchmark that measures the speed of splish(8, 9, 10) // Challenge: Create a benchmark that measures the speed of splish(8, 9, 10)
// - Speed up the implementation of splish(8, 9, 10) without breaking the other tests. // - Speed up the implementation of splish(8, 9, 10) without breaking the other tests.