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// This file is part of the uutils coreutils package.
//
// For the full copyright and license information, please view the LICENSE
// file that was distributed with this source code.
use std::ffi::OsString;
use std::io::{self, Read};
use uufuzz::{compare_result, generate_and_run_uumain, run_gnu_cmd};
// Mock cat implementation for demonstration
fn mock_cat_main(args: std::vec::IntoIter<OsString>) -> i32 {
let _args: Vec<OsString> = args.collect();
// Read from stdin and write to stdout
let mut input = String::new();
match io::stdin().read_to_string(&mut input) {
Ok(_) => {
print!("{}", input);
0
}
Err(_) => {
eprintln!("Error reading from stdin");
1
}
}
}
fn main() {
println!("=== Pipe Input uufuzz Example ===");
let args = vec![OsString::from("cat")];
let pipe_input = "Hello from pipe!\nThis is line 2.\nAnd line 3.";
println!("Running mock cat implementation with pipe input...");
let rust_result = generate_and_run_uumain(&args, mock_cat_main, Some(pipe_input));
println!("Running GNU cat with pipe input...");
match run_gnu_cmd("cat", &args[1..], false, Some(pipe_input)) {
Ok(gnu_result) => {
println!("Comparing results...");
compare_result(
"cat",
"",
Some(pipe_input),
&rust_result,
&gnu_result,
false,
);
}
Err(error_result) => {
println!("Failed to run GNU cat: {}", error_result.stderr);
println!("This is expected if GNU coreutils is not installed");
// Show what our implementation produced
println!("\nOur implementation result:");
println!("Stdout: '{}'", rust_result.stdout);
println!("Stderr: '{}'", rust_result.stderr);
println!("Exit code: {}", rust_result.exit_code);
// Verify our mock implementation works
if rust_result.stdout.trim() == pipe_input.trim() {
println!("✓ Our mock cat implementation correctly echoed the pipe input");
} else {
println!("✗ Our mock cat implementation failed to echo the pipe input correctly");
}
}
}
}
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