Verify logics for caching files

src/controllers/__tests__/files.rs

@@ -0,0 +1,57 @@
+#[cfg(test)]
+mod tests {
+
+    use std::path::PathBuf;
+
+    use axum::{
+        body::Body,
+        http::{Request, StatusCode},
+    };
+    use tower::ServiceExt;
+
+    use crate::{constants::CDN_ROOT, controllers::app::app, env::state::AppState};
+
+    const URI: &str = "/files";
+
+    #[tokio::test]
+    async fn test_response_file() {
+        let app = app();
+        let state = AppState::from_env();
+        let file_path = "/images/hpp/ic_wahlberg_product_core_48.png8.png";
+        let response = app
+            .with_state(state)
+            .oneshot(
+                Request::builder()
+                    .uri(format!("{}{}", URI, file_path))
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
+        let local_file_path = PathBuf::from(format!("{}{}{}", CDN_ROOT, URI, file_path));
+
+        assert_eq!(response.status(), StatusCode::OK);
+        assert!(local_file_path.exists());
+    }
+
+    #[tokio::test]
+    async fn test_response_error() {
+        let app = app();
+        let state = AppState::from_env();
+        let file_path = "/images/you-must-not-exist.png";
+        let response = app
+            .with_state(state)
+            .oneshot(
+                Request::builder()
+                    .uri(format!("{}{}", URI, file_path))
+                    .body(Body::empty())
+                    .unwrap(),
+            )
+            .await
+            .unwrap();
+        let local_file_path = PathBuf::from(format!("{}{}{}", CDN_ROOT, URI, file_path));
+
+        assert_eq!(response.status(), StatusCode::NOT_FOUND);
+        assert!(!local_file_path.exists());
+    }
+}

src/controllers/__tests__/mod.rs

@@ -1 +1,2 @@
+mod files;
 mod images;