4 releases (breaking)
0.4.0 | Mar 7, 2020 |
---|---|
0.3.0 | Jan 12, 2020 |
0.2.0 | Jan 12, 2020 |
0.1.0 | Jan 12, 2020 |
#488 in Cargo plugins
18KB
429 lines
cargo-fixeq
Fix assert_eq!
test errors by editing the source code to match the test output.
Inspired by Mercurial's run-tests.py -i
.
Installation
cargo install cargo-fixeq
Example
Write tests using assert_eq!
as usual. Put the code to evaluate on the left, leave a dummy value on the right:
fn f(n: usize) -> usize {
if n <= 2 { 1 } else { f(n - 1) + f(n - 2) }
}
#[test]
fn test_f() {
assert_eq!(f(10), 0);
assert_eq!(f(20), 0);
}
Run cargo fixeq
from the project root:
cargo fixeq
The dummy values are fixed automatically:
fn test_f() {
- assert_eq!(f(10), 0);
- assert_eq!(f(20), 0);
+ assert_eq!(f(10), 55);
+ assert_eq!(f(20), 6765);
}
In general, cargo-fixeq
can be helpful for writing initial tests and updating tests. See here for a more complicated real world example.
Command-line Parameters
All parameters are passed to cargo test
. cargo-fixeq
does not define its own parameters.
Dependencies
~3–4.5MB
~86K SLoC