use std::process::Command;
use assert_cmd::prelude::*; use assert_fs::prelude::FileWriteStr;
// Add methods on commands
use predicates::prelude::*;



#[test]
fn file_doesnt_exist() -> Result<(), Box<dyn std::error::Error>>{
    let mut cmd = Command::cargo_bin("neteye-tool-grrs")?;
    cmd.arg("main").arg("src/main.rss");
    cmd.assert()
    .failure()
    .stderr(predicate::str::contains("could not read file"));
    Ok(())
}

#[test]
fn find_content_in_file()->Result<(),Box<dyn std::error::Error>>{
    let file = assert_fs::NamedTempFile::new("sample.txt")?;
    file.write_str("A test\nActual content\nMore content\nAnother test")?;
    
    let mut cmd = Command::cargo_bin("grrs")?;
    cmd.arg("test").arg(file.path());
    cmd.assert().failure().stdout(predicate::str::contains("test\nAnother test"));
    
    Ok(())
}