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use std::cell::RefCell;
use std::collections::HashMap;
use std::path::PathBuf;
#[derive(Default)]
pub struct MockFileSystem {
files: RefCell<HashMap<String, std::io::Result<String>>>,
}
impl MockFileSystem {
pub fn clear(&self) {
self.files.borrow_mut().clear();
}
fn get_test_file_path() -> PathBuf {
PathBuf::from(std::env!("CARGO_MANIFEST_DIR")).join("resources")
}
fn get_file(&self, path: &str) -> std::io::Result<String> {
let mut tmp = self.files.borrow_mut();
let result = tmp.entry(path.to_string()).or_insert_with(|| {
let root_path = Self::get_test_file_path();
let full_path = root_path.join(path);
std::fs::read_to_string(full_path)
});
match result {
Ok(s) => Ok(s.to_string()),
Err(e) => Err(std::io::Error::new(e.kind(), "Error")),
}
}
#[cfg(feature = "sync")]
pub fn get_test_file_sync(&self, path: &str) -> std::io::Result<String> {
self.get_file(path)
}
#[cfg(feature = "async")]
pub async fn get_test_file_async(&self, path: &str) -> std::io::Result<String> {
self.get_file(path)
}
}
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