4 files changed, 470 insertions, 0 deletions

diff --git a/tests/config.rs b/tests/config.rs
new file mode 100644
index 0000000..70c5034
--- /dev/null
+++ b/tests/config.rs
@@ -0,0 +1,133 @@
+use rsp::config::Config;
+use std::path::PathBuf;
+
+#[test]
+fn test_config_get_scan_interval() {
+    let config = Config {
+        config_path: PathBuf::from("/test/config.toml"),
+        music_paths: vec![],
+        scan_interval: Some(3600),
+        socket_path: None,
+        lastfm_api_key: None,
+        lastfm_api_secret: None,
+        lastfm_session_key: None,
+        listenbrainz_token: None,
+        volume: None,
+        shuffle: None,
+    };
+    assert_eq!(config.get("scan_interval").unwrap(), "3600");
+}
+
+#[test]
+fn test_config_get_not_set() {
+    let config = Config {
+        config_path: PathBuf::from("/test/config.toml"),
+        ..Default::default()
+    };
+    assert_eq!(config.get("scan_interval").unwrap(), "not set");
+}
+
+#[test]
+fn test_config_get_volume() {
+    let config = Config {
+        config_path: PathBuf::from("/test/config.toml"),
+        music_paths: vec![],
+        scan_interval: None,
+        socket_path: None,
+        lastfm_api_key: None,
+        lastfm_api_secret: None,
+        lastfm_session_key: None,
+        listenbrainz_token: None,
+        volume: Some(75),
+        shuffle: None,
+    };
+    assert_eq!(config.get("volume").unwrap(), "75");
+}
+
+#[test]
+fn test_config_get_unknown_key() {
+    let config = Config::default();
+    let result = config.get("unknown_key");
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_config_set_scan_interval() {
+    let mut config = Config::default();
+    config.set("scan_interval", "7200").unwrap();
+    assert_eq!(config.scan_interval, Some(7200));
+}
+
+#[test]
+fn test_config_set_invalid_scan_interval() {
+    let mut config = Config::default();
+    let result = config.set("scan_interval", "invalid");
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_config_set_volume() {
+    let mut config = Config::default();
+    config.set("volume", "50").unwrap();
+    assert_eq!(config.volume, Some(50));
+}
+
+#[test]
+fn test_config_set_invalid_volume() {
+    let mut config = Config::default();
+    let result = config.set("volume", "256");
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_config_set_shuffle_valid() {
+    let mut config = Config::default();
+    config.set("shuffle", "all").unwrap();
+    assert_eq!(config.shuffle, Some("all".to_string()));
+}
+
+#[test]
+fn test_config_set_shuffle_off() {
+    let mut config = Config::default();
+    config.set("shuffle", "off").unwrap();
+    assert_eq!(config.shuffle, None);
+}
+
+#[test]
+fn test_config_set_shuffle_invalid() {
+    let mut config = Config::default();
+    let result = config.set("shuffle", "invalid");
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_config_set_unknown_key() {
+    let mut config = Config::default();
+    let result = config.set("unknown_key", "value");
+    assert!(result.is_err());
+}
+
+#[test]
+fn test_config_unset_volume() {
+    let mut config = Config {
+        config_path: PathBuf::from("/test/config.toml"),
+        music_paths: vec![],
+        scan_interval: None,
+        socket_path: None,
+        lastfm_api_key: None,
+        lastfm_api_secret: None,
+        lastfm_session_key: None,
+        listenbrainz_token: None,
+        volume: Some(50),
+        shuffle: None,
+    };
+    config.unset("volume").unwrap();
+    assert_eq!(config.volume, None);
+}
+
+#[test]
+fn test_config_unset_unknown_key() {
+    let mut config = Config::default();
+    let result = config.unset("unknown_key");
+    assert!(result.is_err());
+}
diff --git a/tests/database.rs b/tests/database.rs
new file mode 100644
index 0000000..67fe0ed
--- /dev/null
+++ b/tests/database.rs
@@ -0,0 +1,85 @@
+use rsp::database::{extract_metadata, is_audio_file};
+use std::path::PathBuf;
+
+#[test]
+fn test_is_audio_file_mp3() {
+    let path = PathBuf::from("/music/song.mp3");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_flac() {
+    let path = PathBuf::from("/music/song.flac");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_ogg() {
+    let path = PathBuf::from("/music/song.ogg");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_m4a() {
+    let path = PathBuf::from("/music/song.m4a");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_wav() {
+    let path = PathBuf::from("/music/song.wav");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_opus() {
+    let path = PathBuf::from("/music/song.opus");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_uppercase() {
+    let path = PathBuf::from("/music/song.MP3");
+    assert!(is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_non_audio() {
+    let path = PathBuf::from("/music/song.txt");
+    assert!(!is_audio_file(&path));
+}
+
+#[test]
+fn test_is_audio_file_no_extension() {
+    let path = PathBuf::from("/music/songfile");
+    assert!(!is_audio_file(&path));
+}
+
+#[test]
+fn test_extract_metadata_standard_path() {
+    let path = PathBuf::from("/music/Artist/Album/Track.mp3");
+    let (artist, album, title, track_num, duration) = extract_metadata(&path);
+    assert_eq!(artist, "Artist");
+    assert_eq!(album, "Album");
+    assert_eq!(title, "Track");
+    assert_eq!(track_num, None);
+    assert_eq!(duration, None);
+}
+
+#[test]
+fn test_extract_metadata_deep_path() {
+    let path = PathBuf::from("/music/Artist/Album/Disc1/Track.mp3");
+    let (artist, album, title, _, _) = extract_metadata(&path);
+    assert_eq!(artist, "Album");
+    assert_eq!(album, "Disc1");
+    assert_eq!(title, "Track");
+}
+
+#[test]
+fn test_extract_metadata_no_parent() {
+    let path = PathBuf::from("/song.mp3");
+    let (artist, album, title, _, _) = extract_metadata(&path);
+    assert_eq!(artist, "Unknown");
+    assert_eq!(album, "Unknown");
+    assert_eq!(title, "song");
+}
diff --git a/tests/playback.rs b/tests/playback.rs
new file mode 100644
index 0000000..80ecf58
--- /dev/null
+++ b/tests/playback.rs
@@ -0,0 +1,175 @@
+use rsp::playback::{PlaybackState, Player, ShuffleMode, Track};
+use std::path::PathBuf;
+
+fn dummy_track(title: &str) -> Track {
+    Track {
+        path: PathBuf::from(format!("/music/{}", title)),
+        title: title.to_string(),
+        artist: "Test Artist".to_string(),
+        album: "Test Album".to_string(),
+        duration: Some(180000),
+    }
+}
+
+#[test]
+fn test_player_default_state() {
+    let player = Player::new();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+    assert_eq!(player.volume(), 70);
+}
+
+#[test]
+fn test_player_play_with_track_in_queue() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Test Track"), "last");
+    player.play();
+    assert_eq!(player.state(), &PlaybackState::Playing);
+    assert!(player.current_track.is_some());
+    assert!(player.queue.is_empty());
+}
+
+#[test]
+fn test_player_play_with_no_track() {
+    let mut player = Player::new();
+    player.play();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+}
+
+#[test]
+fn test_player_play_track() {
+    let mut player = Player::new();
+    player.play_track(dummy_track("Test Track"));
+    assert_eq!(player.state(), &PlaybackState::Playing);
+    assert!(player.current_track.is_some());
+}
+
+#[test]
+fn test_player_pause() {
+    let mut player = Player::new();
+    player.play_track(dummy_track("Test Track"));
+    player.pause();
+    assert_eq!(player.state(), &PlaybackState::Paused);
+}
+
+#[test]
+fn test_player_pause_when_stopped() {
+    let mut player = Player::new();
+    player.pause();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+}
+
+#[test]
+fn test_player_resume() {
+    let mut player = Player::new();
+    player.play_track(dummy_track("Test Track"));
+    player.pause();
+    player.resume();
+    assert_eq!(player.state(), &PlaybackState::Playing);
+}
+
+#[test]
+fn test_player_resume_when_stopped() {
+    let mut player = Player::new();
+    player.resume();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+}
+
+#[test]
+fn test_player_stop() {
+    let mut player = Player::new();
+    player.play_track(dummy_track("Test Track"));
+    player.stop();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+    assert!(player.current_track.is_none());
+}
+
+#[test]
+fn test_player_next_with_queue() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Track 1"), "last");
+    player.queue_track(dummy_track("Track 2"), "last");
+    player.next();
+    assert_eq!(player.current_track.as_ref().unwrap().title, "Track 1");
+}
+
+#[test]
+fn test_player_next_empty_queue() {
+    let mut player = Player::new();
+    player.next();
+    assert_eq!(player.state(), &PlaybackState::Stopped);
+    assert!(player.current_track.is_none());
+}
+
+#[test]
+fn test_player_previous() {
+    let mut player = Player::new();
+    player.play_track(dummy_track("Test Track"));
+    player.previous();
+    assert_eq!(player.state(), &PlaybackState::Playing);
+}
+
+#[test]
+fn test_player_set_volume() {
+    let mut player = Player::new();
+    player.set_volume(50);
+    assert_eq!(player.volume(), 50);
+}
+
+#[test]
+fn test_player_set_volume_caps_at_100() {
+    let mut player = Player::new();
+    player.set_volume(150);
+    assert_eq!(player.volume(), 100);
+}
+
+#[test]
+fn test_player_set_shuffle() {
+    let mut player = Player::new();
+    player.set_shuffle(ShuffleMode::All);
+    assert_eq!(player.shuffle, ShuffleMode::All);
+}
+
+#[test]
+fn test_player_queue_track_now() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Track 1"), "now");
+    assert_eq!(player.queue.len(), 1);
+    assert_eq!(player.queue[0].title, "Track 1");
+}
+
+#[test]
+fn test_player_queue_track_next() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Track 1"), "last");
+    player.queue_track(dummy_track("Track 2"), "next");
+    assert_eq!(player.queue.len(), 2);
+    assert_eq!(player.queue[0].title, "Track 1");
+    assert_eq!(player.queue[1].title, "Track 2");
+}
+
+#[test]
+fn test_player_queue_track_last() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Track 1"), "last");
+    player.queue_track(dummy_track("Track 2"), "last");
+    assert_eq!(player.queue.len(), 2);
+    assert_eq!(player.queue[0].title, "Track 1");
+    assert_eq!(player.queue[1].title, "Track 2");
+}
+
+#[test]
+fn test_player_dequeue_next() {
+    let mut player = Player::new();
+    player.queue_track(dummy_track("Track 1"), "last");
+    let track = player.dequeue_next();
+    assert!(track.is_some());
+    assert_eq!(track.unwrap().title, "Track 1");
+    assert!(player.queue.is_empty());
+}
+
+#[test]
+fn test_player_dequeue_next_empty() {
+    let mut player = Player::new();
+    let track = player.dequeue_next();
+    assert!(track.is_none());
+}
diff --git a/tests/scrobbler.rs b/tests/scrobbler.rs
new file mode 100644
index 0000000..f326250
--- /dev/null
+++ b/tests/scrobbler.rs
@@ -0,0 +1,77 @@
+use rsp::scrobbler::Scrobbler;
+
+#[test]
+fn test_scrobbler_new_with_all_params() {
+    let scrobbler = Scrobbler::new(
+        Some("api_key".to_string()),
+        Some("secret".to_string()),
+        Some("session".to_string()),
+        Some("token".to_string()),
+    );
+    assert!(scrobbler.lastfm_api_key.is_some());
+    assert!(scrobbler.lastfm_api_secret.is_some());
+    assert!(scrobbler.lastfm_session_key.is_some());
+    assert!(scrobbler.listenbrainz_token.is_some());
+}
+
+#[test]
+fn test_scrobbler_new_with_none() {
+    let scrobbler = Scrobbler::new(None, None, None, None);
+    assert!(scrobbler.lastfm_api_key.is_none());
+    assert!(scrobbler.lastfm_api_secret.is_none());
+    assert!(scrobbler.lastfm_session_key.is_none());
+    assert!(scrobbler.listenbrainz_token.is_none());
+}
+
+#[test]
+fn test_scrobbler_now_playing_no_api_key() {
+    let scrobbler = Scrobbler::new(None, None, None, None);
+    scrobbler.now_playing("Artist", "Track", Some("Album"));
+}
+
+#[test]
+fn test_scrobbler_now_playing_with_api_key() {
+    let scrobbler = Scrobbler::new(Some("api_key".to_string()), None, None, None);
+    scrobbler.now_playing("Artist", "Track", Some("Album"));
+}
+
+#[test]
+fn test_scrobbler_scrobble_no_keys() {
+    let scrobbler = Scrobbler::new(None, None, None, None);
+    scrobbler.scrobble("Artist", "Track", Some("Album"), 1234567890);
+}
+
+#[test]
+fn test_scrobbler_scrobble_with_lastfm() {
+    let scrobbler = Scrobbler::new(Some("api_key".to_string()), None, None, None);
+    scrobbler.scrobble("Artist", "Track", Some("Album"), 1234567890);
+}
+
+#[test]
+fn test_scrobbler_scrobble_with_listenbrainz() {
+    let scrobbler = Scrobbler::new(None, None, None, Some("token".to_string()));
+    scrobbler.scrobble("Artist", "Track", Some("Album"), 1234567890);
+}
+
+#[test]
+fn test_scrobbler_scrobble_with_both() {
+    let scrobbler = Scrobbler::new(
+        Some("api_key".to_string()),
+        None,
+        None,
+        Some("token".to_string()),
+    );
+    scrobbler.scrobble("Artist", "Track", Some("Album"), 1234567890);
+}
+
+#[test]
+fn test_scrobbler_now_playing_no_album() {
+    let scrobbler = Scrobbler::new(Some("api_key".to_string()), None, None, None);
+    scrobbler.now_playing("Artist", "Track", None);
+}
+
+#[test]
+fn test_scrobbler_scrobble_no_album() {
+    let scrobbler = Scrobbler::new(Some("api_key".to_string()), None, None, None);
+    scrobbler.scrobble("Artist", "Track", None, 1234567890);
+}