chore: restore original directory structure (project under code-review-graph-main/)

code-review-graph-main/tests/fixtures/sample_rust.rs

@@ -0,0 +1,69 @@
+use std::collections::HashMap;
+
+pub trait Repository {
+    fn find_by_id(&self, id: u64) -> Option<&User>;
+    fn save(&mut self, user: User);
+}
+
+#[derive(Debug, Clone)]
+pub struct User {
+    pub id: u64,
+    pub name: String,
+    pub email: String,
+}
+
+pub struct InMemoryRepo {
+    users: HashMap<u64, User>,
+}
+
+impl InMemoryRepo {
+    pub fn new() -> Self {
+        InMemoryRepo {
+            users: HashMap::new(),
+        }
+    }
+}
+
+impl Repository for InMemoryRepo {
+    fn find_by_id(&self, id: u64) -> Option<&User> {
+        self.users.get(&id)
+    }
+
+    fn save(&mut self, user: User) {
+        println!("Saving user {}", user.id);
+        self.users.insert(user.id, user);
+    }
+}
+
+pub fn create_user(repo: &mut impl Repository, name: &str, email: &str) -> User {
+    let user = User {
+        id: 1,
+        name: name.to_string(),
+        email: email.to_string(),
+    };
+    repo.save(user.clone());
+    user
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn new_repo_is_empty() {
+        let repo = InMemoryRepo::new();
+        assert!(repo.find_by_id(1).is_none());
+    }
+
+    #[test]
+    fn create_user_saves_to_repo() {
+        let mut repo = InMemoryRepo::new();
+        let user = create_user(&mut repo, "alice", "[email protected]");
+        assert_eq!(user.name, "alice");
+    }
+
+    #[tokio::test]
+    async fn async_test_is_detected() {
+        assert!(true);
+    }
+}