diff --git a/packages/backend/native-utils/crates/database/Cargo.toml b/packages/backend/native-utils/crates/database/Cargo.toml
index 8498f52f24..e4c60623e0 100644
--- a/packages/backend/native-utils/crates/database/Cargo.toml
+++ b/packages/backend/native-utils/crates/database/Cargo.toml
@@ -5,7 +5,14 @@ edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
+[features]
+mock = []
+
 [dependencies]
 once_cell = "1.17.1"
-sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "runtime-tokio-rustls", "mock"] }
+sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "runtime-tokio-rustls"] }
 thiserror = "1.0.40"
+tokio = { version = "1.28.1", features = ["macros"] }
+
+[dev-dependencies]
+sea-orm = { version = "0.11.3", features = ["sqlx-postgres", "sqlx-sqlite", "runtime-tokio-rustls", "mock"] }
diff --git a/packages/backend/native-utils/crates/database/src/error.rs b/packages/backend/native-utils/crates/database/src/error.rs
index b70964f2ee..babdd68318 100644
--- a/packages/backend/native-utils/crates/database/src/error.rs
+++ b/packages/backend/native-utils/crates/database/src/error.rs
@@ -1,6 +1,6 @@
 use sea_orm::error::DbErr;
 
-#[derive(thiserror::Error, Debug)]
+#[derive(thiserror::Error, Debug, PartialEq, Eq)]
 pub enum Error {
     #[error("The database connections have not been initialized yet")]
     Uninitialized,
diff --git a/packages/backend/native-utils/crates/database/src/lib.rs b/packages/backend/native-utils/crates/database/src/lib.rs
index 5506c702a2..756be123e0 100644
--- a/packages/backend/native-utils/crates/database/src/lib.rs
+++ b/packages/backend/native-utils/crates/database/src/lib.rs
@@ -1,13 +1,15 @@
 pub mod error;
 
-use once_cell::sync::{Lazy, OnceCell};
-use sea_orm::{Database, DatabaseBackend, DatabaseConnection, MockDatabase};
+use sea_orm::{Database, DatabaseConnection};
 
 use crate::error::Error;
 
-static DB_CONN: OnceCell<DatabaseConnection> = OnceCell::new();
-static DB_MOCK: Lazy<DatabaseConnection> =
-    Lazy::new(|| MockDatabase::new(DatabaseBackend::Postgres).into_connection());
+static DB_CONN: once_cell::sync::OnceCell<DatabaseConnection> = once_cell::sync::OnceCell::new();
+
+#[cfg(feature = "mock")]
+static DB_MOCK: once_cell::sync::Lazy<DatabaseConnection> = once_cell::sync::Lazy::new(|| {
+    sea_orm::MockDatabase::new(sea_orm::DatabaseBackend::Postgres).into_connection()
+});
 
 pub async fn init_database(connection_uri: impl Into<String>) -> Result<(), Error> {
     let conn = Database::connect(connection_uri.into()).await?;
@@ -16,19 +18,26 @@ pub async fn init_database(connection_uri: impl Into<String>) -> Result<(), Erro
 }
 
 pub fn get_database() -> Result<&'static DatabaseConnection, Error> {
-    if cfg!(test) {
-        Ok(&DB_MOCK)
-    } else {
-        DB_CONN.get().ok_or(Error::Uninitialized)
-    }
+    #[cfg(feature = "mock")]
+    return Ok(&DB_MOCK);
+    #[cfg(not(feature = "mock"))]
+    DB_CONN.get().ok_or(Error::Uninitialized)
 }
 
 #[cfg(test)]
 mod tests {
     use super::get_database;
+    use crate::{error::Error, init_database};
 
     #[test]
-    fn can_get_mock() {
-        get_database().unwrap().as_mock_connection();
+    fn error_uninitialized() {
+        assert_eq!(get_database().unwrap_err(), Error::Uninitialized);
+    }
+
+    #[tokio::test]
+    async fn connect_in_memory_sqlite() -> Result<(), Error> {
+        init_database("sqlite::memory:").await?;
+        get_database()?;
+        Ok(())
     }
 }
diff --git a/packages/backend/native-utils/crates/model/Cargo.toml b/packages/backend/native-utils/crates/model/Cargo.toml
index 832375ec7c..8714afdb41 100644
--- a/packages/backend/native-utils/crates/model/Cargo.toml
+++ b/packages/backend/native-utils/crates/model/Cargo.toml
@@ -13,9 +13,14 @@ jsonschema = "0.17.0"
 once_cell = "1.17.1"
 parse-display = "0.8.0"
 schemars = { version = "0.8.12", features = ["chrono"] }
-sea-orm = { version = "0.11.3", features = ["postgres-array", "sqlx-postgres", "runtime-tokio-rustls", "mock"] }
+sea-orm = { version = "0.11.3", features = ["postgres-array", "sqlx-postgres", "runtime-tokio-rustls"] }
 serde = { version = "1.0.163", features = ["derive"] }
 serde_json = "1.0.96"
 thiserror = "1.0.40"
 tokio = { version = "1.28.1", features = ["sync"] }
+util = { path = "../util" }
 utoipa = "3.3.0"
+
+[dev-dependencies]
+database = { path = "../database", features = ["mock"] }
+sea-orm = { version = "0.11.3", features = ["postgres-array", "sqlx-postgres", "runtime-tokio-rustls", "mock"] }
diff --git a/packages/backend/native-utils/crates/model/src/error.rs b/packages/backend/native-utils/crates/model/src/error.rs
index f75c0119a3..379ecb7842 100644
--- a/packages/backend/native-utils/crates/model/src/error.rs
+++ b/packages/backend/native-utils/crates/model/src/error.rs
@@ -1,4 +1,4 @@
-#[derive(thiserror::Error, Debug)]
+#[derive(thiserror::Error, Debug, PartialEq, Eq)]
 pub enum Error {
     #[error("Failed to parse string")]
     ParseError(#[from] parse_display::ParseError),