Restructure crates for correct proc macro usage

Signed-off-by: Lee Smet <lee.smet@hotmail.com>

heromodels-derive/tests/test_model_macro.rs

@@ -0,0 +1,106 @@
+use heromodels_derive::model;
+use serde::{Serialize, Deserialize};
+
+// Define the necessary structs and traits for testing
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct BaseModelData {
+    pub id: u32,
+    pub created_at: i64,
+    pub modified_at: i64,
+    pub comments: Vec<u32>,
+}
+
+impl BaseModelData {
+    pub fn new(id: u32) -> Self {
+        let now = 1000; // Mock timestamp
+        Self {
+            id,
+            created_at: now,
+            modified_at: now,
+            comments: Vec::new(),
+        }
+    }
+}
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct IndexKey {
+    pub name: &'static str,
+    pub value: String,
+}
+
+pub trait Model: std::fmt::Debug + Clone {
+    fn db_prefix() -> &'static str;
+    fn get_id(&self) -> u32;
+    fn base_data_mut(&mut self) -> &mut BaseModelData;
+    fn db_keys(&self) -> Vec<IndexKey>;
+}
+
+pub trait Index {
+    type Model: Model;
+    type Key: ?Sized;
+    fn key() -> &'static str;
+}
+
+// Test struct using the model macro
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model]
+struct TestUser {
+    base_data: BaseModelData,
+    
+    #[index]
+    username: String,
+    
+    #[index]
+    is_active: bool,
+}
+
+// Test struct with custom index name
+#[derive(Debug, Clone, Serialize, Deserialize)]
+#[model]
+struct TestUserWithCustomIndex {
+    base_data: BaseModelData,
+    
+    #[index(name = "custom_username")]
+    username: String,
+    
+    #[index]
+    is_active: bool,
+}
+
+#[test]
+fn test_basic_model() {
+    assert_eq!(TestUser::db_prefix(), "test_user");
+    
+    let user = TestUser {
+        base_data: BaseModelData::new(1),
+        username: "test".to_string(),
+        is_active: true,
+    };
+    
+    let keys = user.db_keys();
+    assert_eq!(keys.len(), 2);
+    assert_eq!(keys[0].name, "username");
+    assert_eq!(keys[0].value, "test");
+    assert_eq!(keys[1].name, "is_active");
+    assert_eq!(keys[1].value, "true");
+}
+
+#[test]
+fn test_custom_index_name() {
+    let user = TestUserWithCustomIndex {
+        base_data: BaseModelData::new(1),
+        username: "test".to_string(),
+        is_active: true,
+    };
+    
+    // Check that the Username struct uses the custom index name
+    assert_eq!(Username::key(), "custom_username");
+    
+    // Check that the db_keys method returns the correct keys
+    let keys = user.db_keys();
+    assert_eq!(keys.len(), 2);
+    assert_eq!(keys[0].name, "custom_username");
+    assert_eq!(keys[0].value, "test");
+    assert_eq!(keys[1].name, "is_active");
+    assert_eq!(keys[1].value, "true");
+}