Crate goldenfile

Goldenfile tests generate one or more output files as they run. If any files differ from their checked-in “golden” version, the test fails. This ensures that behavioral changes are intentional, explicit, and version controlled.

Example

use goldenfile::Mint;
use std::io::Write;

let mut mint = Mint::new("tests/goldenfiles");
let mut file1 = mint.new_goldenfile("file1.txt").unwrap();
let mut file2 = mint.new_goldenfile("file2.txt").unwrap();

writeln!(file1, "Hello world!").unwrap();
writeln!(file2, "Foo bar!").unwrap();

When the Mint goes out of scope, it compares the contents of each file to its checked-in golden version and fails the test if they differ. To update the checked-in versions, run:

UPDATE_GOLDENFILES=1 cargo test

Re-exports

pub use mint::*;

Modules

differs

Functions for comparing files.

mint

Used to create goldenfiles.