use std::fs; use std::path::Path; const TEST_FILE_NAME: &str = "SampleTextFile.txt"; fn main() { create_required_files(); let read_str_result = fs::read_to_string(TEST_FILE_NAME); match read_str_result { Ok(contents) => { // TODO : What would be the expected text ? assert_eq!(, contents); } Err(e) => { eprintln!("Error reading file: {}", e); assert!(false); } } } fn create_required_files(){ let file_path = Path::new(TEST_FILE_NAME); if file_path.exists() == false { fs::write(&file_path, "This is the file content.").unwrap(); println!("File created."); } }