diff --git a/gpodder/src/models.rs b/gpodder/src/models.rs
index b68e73b..cde5c50 100644
--- a/gpodder/src/models.rs
+++ b/gpodder/src/models.rs
@@ -1,12 +1,13 @@
 use chrono::{DateTime, Utc};
 
-#[derive(Clone)]
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct User {
     pub id: i64,
     pub username: String,
     pub password_hash: String,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum DeviceType {
     Desktop,
     Laptop,
@@ -15,6 +16,7 @@ pub enum DeviceType {
     Other,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Device {
     pub id: String,
     pub caption: String,
@@ -22,11 +24,13 @@ pub struct Device {
     pub subscriptions: i64,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct DevicePatch {
     pub caption: Option<String>,
     pub r#type: Option<DeviceType>,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub enum EpisodeActionType {
     Download,
     Play {
@@ -38,6 +42,7 @@ pub enum EpisodeActionType {
     New,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct EpisodeAction {
     pub podcast: String,
     pub episode: String,
@@ -47,12 +52,14 @@ pub struct EpisodeAction {
     pub action: EpisodeActionType,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Session {
     pub id: i64,
     pub last_seen: DateTime<Utc>,
     pub user: User,
 }
 
+#[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Subscription {
     pub url: String,
     pub time_changed: DateTime<Utc>,
diff --git a/gpodder_sqlite/src/lib.rs b/gpodder_sqlite/src/lib.rs
index 4b6ccbb..f2f0082 100644
--- a/gpodder_sqlite/src/lib.rs
+++ b/gpodder_sqlite/src/lib.rs
@@ -94,3 +94,16 @@ pub fn initialize_db(path: impl AsRef<Path>, run_migrations: bool) -> Result<DbP
 
     Ok(pool)
 }
+
+pub fn initialize_db_in_memory(run_migrations: bool) -> Result<DbPool, DbError> {
+    let manager = ConnectionManager::<SqliteConnection>::new(":memory:");
+    let pool = Pool::builder()
+        .connection_customizer(Box::new(AddQueryDebugLogs))
+        .build(manager)?;
+
+    if run_migrations {
+        pool.get()?.run_pending_migrations(MIGRATIONS).unwrap();
+    }
+
+    Ok(pool)
+}
diff --git a/gpodder_sqlite/src/repository/mod.rs b/gpodder_sqlite/src/repository/mod.rs
index 6a80b28..7fab3bf 100644
--- a/gpodder_sqlite/src/repository/mod.rs
+++ b/gpodder_sqlite/src/repository/mod.rs
@@ -24,4 +24,10 @@ impl SqliteRepository {
 
         Ok(Self { pool })
     }
+
+    pub fn in_memory() -> Result<Self, gpodder::AuthErr> {
+        let pool = super::initialize_db_in_memory(true)?;
+
+        Ok(Self { pool })
+    }
 }
diff --git a/gpodder_sqlite/tests/auth_test.rs b/gpodder_sqlite/tests/auth_test.rs
new file mode 100644
index 0000000..b35f2c1
--- /dev/null
+++ b/gpodder_sqlite/tests/auth_test.rs
@@ -0,0 +1,47 @@
+mod common;
+
+use gpodder::{AuthStore, Session};
+use gpodder_sqlite::SqliteRepository;
+
+#[test]
+fn test_create_user() {
+    let store = SqliteRepository::in_memory().unwrap();
+
+    let user = store.get_user("test1");
+    assert!(user.is_ok());
+    assert_eq!(user.unwrap(), None);
+
+    let new_user = store.insert_user("test1", "dummyhash");
+
+    assert!(new_user.is_ok());
+
+    let new_user = new_user.unwrap();
+    assert_eq!(new_user.username, "test1");
+    assert_eq!(new_user.password_hash, "dummyhash");
+
+    let user = store.get_user("test1");
+
+    assert!(user.is_ok());
+    assert_eq!(user.unwrap(), Some(new_user));
+}
+
+#[test]
+fn test_create_session() {
+    let (store, users) = common::setup();
+
+    let session = store.get_session(123).expect("operation shouldn't fail");
+    assert_eq!(session, None);
+
+    let new_session = Session {
+        id: 123,
+        last_seen: chrono::Utc::now(),
+        user: users[0].clone(),
+    };
+
+    store
+        .insert_session(&new_session)
+        .expect("insert session shouldn't fail");
+
+    let session = store.get_session(123).expect("operation shouldn't fail");
+    assert_eq!(session, Some(new_session));
+}
diff --git a/gpodder_sqlite/tests/common.rs b/gpodder_sqlite/tests/common.rs
new file mode 100644
index 0000000..37b5cc4
--- /dev/null
+++ b/gpodder_sqlite/tests/common.rs
@@ -0,0 +1,16 @@
+use gpodder::{AuthStore, User};
+use gpodder_sqlite::SqliteRepository;
+
+pub fn setup() -> (SqliteRepository, Vec<User>) {
+    let store = SqliteRepository::in_memory().unwrap();
+    let mut users = Vec::new();
+
+    for i in 0..4 {
+        let username = format!("test{}", i + 1);
+        let password_hash = format!("dummyhash{}", i + 1);
+
+        users.push(store.insert_user(&username, &password_hash).unwrap());
+    }
+
+    (store, users)
+}