test(libmake): ✅ add new tests for utility_macros.rs

tests/test_utility_macros.rs

@@ -0,0 +1,69 @@
+#[cfg(test)]
+mod tests {
+    use libmake::macro_get_field;
+    use std::env;
+    use std::path::Path;
+    use std::fs::File;
+    use std::io::Write;
+    use tempfile::tempdir;
+    use serde_json::from_reader;
+
+    fn read_file<F, R>(file_path: &Path, f: F) -> Result<R, Box<dyn std::error::Error>>
+    where
+        F: FnOnce(File) -> Result<R, Box<dyn std::error::Error>>,
+    {
+        let file = File::open(file_path)?;
+        f(file)
+    }
+
+    macro_get_field!(get_field, from_reader);
+
+    #[test]
+    fn test_macro_get_field_success() {
+        let dir = tempdir().unwrap();
+        let file_path = dir.path().join("test.json");
+
+        let json_data = r#"
+        {
+            "name": "Alice",
+            "age": 30
+        }
+        "#;
+
+        let mut file = File::create(&file_path).unwrap();
+        file.write_all(json_data.as_bytes()).unwrap();
+
+        let result = get_field(Some(file_path.to_str().unwrap()), "name");
+        assert_eq!(result.unwrap(), "Alice");
+
+        let result = get_field(Some(file_path.to_str().unwrap()), "age");
+        assert_eq!(result.unwrap(), "30");
+    }
+
+    #[test]
+    fn test_macro_get_field_field_not_found() {
+        let dir = tempdir().unwrap();
+        let file_path = dir.path().join("test.json");
+
+        let json_data = r#"
+        {
+            "name": "Alice",
+            "age": 30
+        }
+        "#;
+
+        let mut file = File::create(&file_path).unwrap();
+        file.write_all(json_data.as_bytes()).unwrap();
+
+        let result = get_field(Some(file_path.to_str().unwrap()), "address");
+        assert!(result.is_err());
+        assert_eq!(result.unwrap_err().to_string(), "Field 'address' not found");
+    }
+
+    #[test]
+    fn test_macro_get_field_no_file_path() {
+        let result = get_field(None, "name");
+        assert!(result.is_ok());
+        assert_eq!(result.unwrap(), "");
+    }
+}