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denoland-deno/test_util/src/factory.rs
2024-01-04 20:34:51 +01:00

98 lines
2.6 KiB
Rust

// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use glob::glob;
use std::collections::HashSet;
use std::path::PathBuf;
/// Generate a unit test factory verified and backed by a glob.
#[macro_export]
macro_rules! unit_test_factory {
($test_fn:ident, $base:literal, $glob:literal, [ $( $test:ident $(= $($path:ident)/+)? ),+ $(,)? ]) => {
#[test]
fn check_test_glob() {
$crate::factory::check_test_glob($base, $glob, [ $( ( stringify!($test), stringify!( $( $($path)/+ )? ) ) ),+ ].as_slice());
}
$(
#[allow(non_snake_case)]
#[test]
fn $test() {
$test_fn($crate::factory::get_path(stringify!($test), stringify!( $( $($path)/+ )?)))
}
)+
};
(__test__ $($prefix:ident)* $test:ident) => {
#[allow(non_snake_case)]
#[test]
fn $test() {
$test_fn(stringify!($($prefix)/+ $test))
}
};
}
pub fn get_path(test: &'static str, path: &'static str) -> String {
if path.is_empty() {
test.to_owned()
} else {
path.replace(' ', "")
}
}
/// Validate that the glob matches the list of tests specified.
pub fn check_test_glob(
base: &'static str,
glob_pattern: &'static str,
files: &[(&'static str, &'static str)],
) {
let base_dir = PathBuf::from(base)
.canonicalize()
.unwrap()
.to_string_lossy()
// Strip Windows slashes
.replace('\\', "/");
let mut found = HashSet::new();
let mut list = vec![];
for file in glob(&format!("{}/{}", base, glob_pattern))
.expect("Failed to read test path")
{
let mut file = file
.expect("Invalid file from glob")
.canonicalize()
.unwrap();
file.set_extension("");
let name = file.file_name().unwrap().to_string_lossy();
// Strip windows slashes
let file = file.to_string_lossy().replace('\\', "/");
let file = file
.strip_prefix(&base_dir)
.expect("File {file} did not start with {base_dir} prefix");
let file = file.strip_prefix('/').unwrap().to_owned();
if file.contains('/') {
list.push(format!("{}={}", name, file))
} else {
list.push(file.clone());
}
found.insert(file);
}
let mut error = false;
for (test, path) in files {
// Remove spaces from the macro
let path = if path.is_empty() {
(*test).to_owned()
} else {
path.replace(' ', "")
};
if found.contains(&path) {
found.remove(&path);
} else {
error = true;
}
}
if error || !found.is_empty() {
panic!(
"Glob did not match provided list of files. Expected: \n[\n {}\n]",
list.join(",\n ")
);
}
}