use tokio::fs;
use testdir::testdir;

use crate::fs_utils;

#[tokio::test]
async fn test_fs_utils_create_dir_allow_existing() {
    let dir = testdir!();
    let foo = dir.join("foo");
    assert!(fs_utils::create_dir_allow_existing(&foo).await.is_ok());
    assert!(fs::try_exists(&foo).await.unwrap());
    assert!(fs_utils::create_dir_allow_existing(&foo).await.is_ok());
}

#[tokio::test]
async fn test_fs_utils_create_dir_allow_existing_file() {
    let dir = testdir!();
    let foo = dir.join("foo");
    assert!(fs::write(&foo, "hello").await.is_ok());
    assert!(fs_utils::create_dir_allow_existing(&foo).await.is_err());
}

#[tokio::test]
async fn test_fs_utils_remove_file_allow_not_found() {
    let dir = testdir!();
    let foo = dir.join("foo");
    assert!(fs_utils::remove_file_allow_not_found(&foo).await.is_ok());
    assert!(fs::write(&foo, "hello").await.is_ok());
    assert!(fs_utils::remove_file_allow_not_found(&foo).await.is_ok());
    assert!(!fs::try_exists(&foo).await.unwrap());
}

#[tokio::test]
async fn test_fs_utils_symlink_update_existing() {
    let dir = testdir!();
    let foo = dir.join("foo");
    let bar = dir.join("bar");
    let fum = dir.join("fum");
    assert!(fs::write(&foo, "hello").await.is_ok());
    assert!(fs_utils::symlink_update_existing(&foo, &bar).await.is_ok());
    assert!(fs_utils::symlink_update_existing(&foo, &bar).await.is_ok());
    assert_eq!(fs::read_link(&bar).await.unwrap(), foo);
    assert!(fs_utils::symlink_update_existing(&fum, &bar).await.is_ok());
    assert_eq!(fs::read_link(&bar).await.unwrap(), fum);
}