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//
// Sysinfo
//
// Copyright (c) 2015 Guillaume Gomez
//

// Once https://github.com/rust-lang/rfcs/blob/master/text/1422-pub-restricted.md
// feature gets stabilized, we can move common parts in here.

#[cfg(test)]
mod tests {
    use crate::{utils, ProcessExt, System, SystemExt};

    #[test]
    fn test_refresh_system() {
        let mut sys = System::new();
        sys.refresh_system();
        assert!(sys.get_total_memory() != 0);
        assert!(sys.get_free_memory() != 0);
        assert!(sys.get_total_memory() >= sys.get_free_memory());
        assert!(sys.get_total_swap() >= sys.get_free_swap());
    }

    #[test]
    fn test_refresh_process() {
        let mut sys = System::new();
        assert!(
            sys.get_processes().is_empty(),
            "no process should be listed!"
        );
        sys.refresh_processes();
        assert!(
            sys.refresh_process(utils::get_current_pid().expect("failed to get current pid")),
            "process not listed",
        );
    }

    #[test]
    fn test_get_process() {
        let mut sys = System::new();
        sys.refresh_processes();
        let p = sys
            .get_process(utils::get_current_pid().expect("failed to get current pid"))
            .expect("didn't find process");
        assert!(p.memory() > 0);
    }

    #[test]
    fn check_if_send_and_sync() {
        trait Foo {
            fn foo(&self) {}
        }
        impl<T> Foo for T where T: Send {}

        trait Bar {
            fn bar(&self) {}
        }

        impl<T> Bar for T where T: Sync {}

        let mut sys = System::new();
        sys.refresh_processes();
        let p = sys
            .get_process(utils::get_current_pid().expect("failed to get current pid"))
            .expect("didn't find process");
        p.foo(); // If this doesn't compile, it'll simply mean that the Process type
                 // doesn't implement the Send trait.
        p.bar(); // If this doesn't compile, it'll simply mean that the Process type
                 // doesn't implement the Sync trait.
    }
}