added a couple deserialize tests

charming/tests/deserialize.rs

@@ -0,0 +1,43 @@
+#[cfg(test)]
+mod tests {
+    use charming::{
+        component::{Axis, Title},
+        element::AxisType,
+        series::Line,
+        Chart,
+    };
+
+    #[test]
+    fn test_deserialize_chart() {
+        let chart = Chart::new()
+            .title(Title::new().text("Demo: Yew + Charming"))
+            .x_axis(
+                Axis::new()
+                    .type_(AxisType::Category)
+                    .data(vec!["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]),
+            )
+            .y_axis(Axis::new().type_(AxisType::Value))
+            .series(Line::new().data(vec![150, 230, 224, 218, 135, 147, 260]));
+
+        let chart_str = serde_json::to_string(&chart).expect("Should be able to serialize chart");
+        let chart_deserialized =
+            serde_json::from_str(&chart_str).expect("Should be able to deserialize chart");
+
+        assert_eq!(
+            chart, chart_deserialized,
+            "Deserialized chart should be equal to original chart"
+        );
+    }
+
+    #[test]
+    fn test_deserialize_chart_invalid_axis_category() {
+        let incomplete_json =
+            r#"{"title": [{"text": "Demo: Yew + Charming"}], "xAxis": {"type": "invalid"}}"#;
+        let result = serde_json::from_str::<Chart>(incomplete_json);
+
+        assert!(
+            result.is_err(),
+            "Expected an error for incomplete data, but deserialization succeeded"
+        );
+    }
+}