diff --git a/server/src/http/context.rs b/server/src/http/context.rs
index a66bd66..0e7c6dd 100644
--- a/server/src/http/context.rs
+++ b/server/src/http/context.rs
@@ -60,3 +60,20 @@ pub type OpenApiResult<T> = poem::Result<T>;
 pub fn bad_request(message: String) -> poem::Error {
     poem::Error::from_string(message, StatusCode::BAD_REQUEST)
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn bad_request_returns_400_status() {
+        let err = bad_request("something went wrong".to_string());
+        assert_eq!(err.status(), StatusCode::BAD_REQUEST);
+    }
+
+    #[test]
+    fn bad_request_accepts_empty_message() {
+        let err = bad_request(String::new());
+        assert_eq!(err.status(), StatusCode::BAD_REQUEST);
+    }
+}