64 lines
1.5 KiB
Rust
64 lines
1.5 KiB
Rust
extern crate difference;
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extern crate file;
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use std::path::{PathBuf, Path};
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use std::fs::read_dir;
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use difference::Changeset;
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pub fn assert_equal_text(
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expected: &str,
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actual: &str,
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path: &Path
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) {
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if expected != actual {
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print_difference(expected, actual, path)
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}
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}
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pub fn collect_tests(paths: &[&str]) -> Vec<PathBuf> {
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paths.iter().flat_map(|path| {
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let path = test_data_dir().join(path);
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test_from_dir(&path).into_iter()
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}).collect()
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}
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fn test_from_dir(dir: &Path) -> Vec<PathBuf> {
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let mut acc = Vec::new();
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for file in read_dir(&dir).unwrap() {
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let file = file.unwrap();
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let path = file.path();
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if path.extension().unwrap_or_default() == "rs" {
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acc.push(path);
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}
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}
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acc.sort();
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acc
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}
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fn print_difference(expected: &str, actual: &str, path: &Path) {
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let dir = project_dir();
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let path = path.strip_prefix(&dir).unwrap_or_else(|_| path);
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println!("\nfile: {}", path.display());
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if expected.trim() == actual.trim() {
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println!("whitespace difference");
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println!("rewriting the file");
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file::put_text(path, actual).unwrap();
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} else {
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let changeset = Changeset::new(actual, expected, "\n");
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println!("{}", changeset);
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}
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panic!("Comparison failed")
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}
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fn project_dir() -> PathBuf {
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let dir = env!("CARGO_MANIFEST_DIR");
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PathBuf::from(dir)
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.parent().unwrap()
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.parent().unwrap()
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.to_owned()
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}
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fn test_data_dir() -> PathBuf {
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project_dir().join("tests/data")
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} |