extern crate assert_cmd;
extern crate predicates;

use assert_cmd::prelude::*;
use assert_fs::prelude::*;
use predicates::prelude::*;
use std::process::Command;

#[test]
fn test_runs_okay() {
    cmd().assert().success();
}

#[test]
fn test_list_empty_directory() {
    cmd()
        .arg(tempdir().path())
        .assert()
        .stdout(predicate::eq(""));
}

#[test]
fn test_list_all_empty_directory() {
    cmd()
        .arg("--all")
        .arg(tempdir().path())
        .assert()
        .stdout(predicate::eq(".\n..\n"));
}

#[test]
fn test_list_populated_directory() {
    let dir = tempdir();
    dir.child("one").touch().unwrap();
    dir.child("two").touch().unwrap();
    cmd()
        .arg(dir.path())
        .assert()
        .stdout(predicate::eq("one\ntwo\n"));
}

#[test]
fn test_list_all_populated_directory() {
    let dir = tempdir();
    dir.child("one").touch().unwrap();
    dir.child("two").touch().unwrap();
    cmd()
        .arg("--all")
        .arg(dir.path())
        .assert()
        .stdout(predicate::eq(".\n..\none\ntwo\n"));
}

fn cmd() -> Command {
    Command::cargo_bin(env!("CARGO_PKG_NAME")).unwrap()
}

fn tempdir() -> assert_fs::TempDir {
    assert_fs::TempDir::new().unwrap()
}