tests: testing getting default logo

crates/ezidam/src/routes/root.rs

@@ -15,6 +15,30 @@ async fn logo(mut db: Connection<Database>) -> Result<FileFromBytes> {
     Ok(FileFromBytes::from(settings.business_logo()))
 }
 
+#[cfg(test)]
+mod test {
+    use crate::tests::*;
+
+    #[test]
+    fn logo() {
+        // Setup http server
+        let client = setup_rocket_testing();
+
+        // Make request
+        let response = client.get(uri!(super::logo)).dispatch();
+        assert_eq!(response.status(), Status::Ok);
+
+        // Assert size of logo
+        let logo_length = response.into_bytes().expect("bytes containing logo").len();
+        use settings::DEFAULT_BUSINESS_LOGO;
+        assert_eq!(
+            logo_length,
+            DEFAULT_BUSINESS_LOGO.len(),
+            "Invalid logo size in bytes, value was `{logo_length}`",
+        );
+    }
+}
+
 #[get("/setup")]
 async fn setup() -> Page {
     Page::Setup()

crates/ezidam/src/tests.rs

@@ -0,0 +1,28 @@
+use crate::rocket_setup;
+use rocket::local::blocking::Client;
+use rocket::{Build, Rocket};
+
+pub use rocket::http::Status;
+pub use rocket::uri;
+
+fn rocket_with_memory_database() -> Rocket<Build> {
+    use rocket::figment::util::map;
+    use rocket::Config;
+
+    // Custom config
+    // - rocket defaults
+    // - from `Rocket.toml`
+    // - from env variables
+    // - from code below
+    let options = map!["url" => ":memory:"];
+    let config = Config::figment().merge(("databases", map!["ezidam" => &options]));
+
+    let rocket_builder = rocket::custom(config);
+
+    // Setup server
+    rocket_setup(rocket_builder)
+}
+
+pub fn setup_rocket_testing() -> Client {
+    Client::tracked(rocket_with_memory_database()).expect("valid rocket instance")
+}

crates/settings/src/lib.rs

@@ -21,7 +21,7 @@ pub struct Settings {
 }
 
 const DEFAULT_BUSINESS_NAME: &str = "ezidam";
-const DEFAULT_BUSINESS_LOGO: &[u8] = include_bytes!("../../../logo/ezidam.png");
+pub const DEFAULT_BUSINESS_LOGO: &[u8] = include_bytes!("../../../logo/ezidam.png");
 
 impl From<DatabaseSettings> for Settings {
     fn from(db: DatabaseSettings) -> Self {